TABLE OF INTERACTIONS WITH
CAFFEINE
From the French ANSM drug interactions document of September 2016, p. 48
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
CIPROFLOXACIN RxNorm: 2551 ATC: J01MA02 S01AE03 S02AA15 S03AA07 |
Increase of the plasma concentrations of caffeine, due to decrease of its hepatic metabolism |
Take into account |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
DIPYRIDAMOLE RxNorm: 3521 ATC: B01AC07 |
With the dipyridamole by injection: reduction of the vasodilator effect of the dipyridamole by the caffeine |
Precaution for use Interrupt a caffeine based treatment at least 5 days before myocardial perfusion imaging with the dipyridamole and avoid consumption of coffee, tea, chocolate, or cola during the 24 hours that precede the test. |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
ENOXACIN RxNorm: 3925 ATC: J01MA04 |
Increase of the plasma concentrations of caffeine, which can lead to agitation and hallucinations, due to decrease of its hepatic metabolism |
Not recommended |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
LITHIUM RxNorm: 6448 ATC: D11AX04 |
In case of sudden discontinuation of consumption of coffee or of medications containing caffeine, risk of increase of the plasma concentrations of lithium |
Take into account |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
MEXILETINE RxNorm: 6926 ATC: C01BB02 |
Increase of the plasma concentrations of caffeine, due to inhibition of its hepatic metabolism by the mexiletine |
Take into account |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
NORFLOXACINE RxNorm: 7517 ATC: J01MA06 S01AE02 |
Increase of the plasma concentrations of caffeine, due to decrease of the hepatic metabolism of the caffeine |
Take into account |
CAFFEINE RxNorm: 1886 ATC: N06BC01 V04CG30 |
STIRIPENTOL RxNorm: 37119 ATC: N03AX17 |
Possible increase of the plasma concentrations of the caffeine, with risk of overdose, due to inhibition of its hepatic metabolism |
Precaution for use Clinical monitoring and possible adjustment of the dosage of caffeine. |


Qpid Proton 0.15.0 Release Notes
Proton is a high-performance, lightweight messaging library. More
about Qpid Proton.
For more information about this release, including download links and
documentation, see the release overview.
New features and improvements
- PROTON-1224 - [proton-j] use newer versions of BouncyCastle
- PROTON-1274 - Performance: avoid referencing 'context' in Event constructor
- PROTON-1277 - pn_connection_engine API improvements.
- PROTON-1283 - [proton-j] enable the transport impl to accept additional wrapper layers
- PROTON-1289 - Add coverage analysis into build system
- PROTON-1293 - Support username and password in electron go binding
- PROTON-1294 - c++ examples: remove un-necessary 64 bit integers.
- PROTON-1301 - add pn_condition_format for formatted descriptions
- PROTON-1302 - Don't depend on proton-c for OS services (use std library)
- PROTON-1303 - Don't use the proton-c url parser
- PROTON-1304 - SSL code shouldn't need to know the time (shouldn't use the platform dependent parts of proton-c)
- PROTON-1306 - Go simplified client/server example
- PROTON-1308 - Support Idle Timeout setting in electron Transport
Bugs fixed
- PROTON-1255 - connection_engine support for built-in proton SSL/SASL
- PROTON-1275 - [proton-j] [reactor] socket connection interrupt causes unhandled IllegalArgumentException
- PROTON-1282 - Seg Fault in Ruby Messenger pn_messenger_free
- PROTON-1287 - c++: missing empty() method on message_id and annotation_key
- PROTON-1290 - [proton-j] Transport can emit erroneous Flow frame before sending a Detach from a Receiver
- PROTON-1291 - [proton-j] calling close again on a closed endpoints marks it modified and emits the related event again
- PROTON-1299 - [proton-j] the Link#getRemoteCredit() method return value isn't suitable for sending links
- PROTON-1305 - Go sporadic test failure in electron_test
- PROTON-1307 - go binding amqp.message does not honor Inferred flag
- PROTON-1313 - c++: missing #include <string> in some headers
Tasks
- PROTON-1300 - [proton-j] remove redundant credit update call
Apache Qpid, Messaging built on AMQP; Copyright © 2015
The Apache Software Foundation; Licensed under
the Apache
License, Version 2.0; Apache Qpid, Qpid, Qpid Proton,
Proton, Apache, the Apache feather logo, and the Apache Qpid
project logo are trademarks of The Apache Software
Foundation; All other marks mentioned may be trademarks or
registered trademarks of their respective owners


DropTable is used to drop an existing table in a database.
This method may needs some privilege according to the database product and its version.
Examples
Following section demonstrates DROP the table(s).
using(var exc = cn.Executer())
{
// by table alias
var t0 = new Orders().AsQueryable();
var t1 = new OrderDetails().AsQueryable();
exc.DropTable(t0); // single
exc.DropTable(new [] {t0, t1}); // multi
// by table type
exc.DropTable<Orders>();
// by table name
exc.DropTable("table1");
}
lYQxL5


ITV Live Debate: Rolling headlines on Brexit
by Ross J Burland- Boris Johnson and Jeremy Corbyn go head to head in their first TV debate - rolling headlines.
- GBP firms from the lows in outc ome of the section of the debate devoted to Brexit.
- The debate is not swaying in favour of Corbyn or Johnson one way or the other so far - Polls were mixed.
Live from Salford in Greater Manchester, Boris Johnson and Jeremy Corbyn go head to head in their first TV debate. The UK leaders will set out how they would break the political deadlock and heal a divided nation. The debate is being moderated by Julie Etchingham. This particular debate was a section devoted to Brexit.
Live rolling quotes from Labour leader Corbyn and Tory party leader Johnson:
Corbyn:
- Corbyn claims Johnson's UK-US trade deal would take seven years to negotiate.
- Corbyn says he would negotiate a new deal, and have a referendum, with a credible leave option.
- He says it is “nonsense” to suggest that Johnson would sort out Brexit by January.
- He says it would take Johnson seven years to negotiate a trade deal with the US. And the US trade deal would be incompatible with a trade deal with the EU.
- In answr to Johnson asking if Corbyn wants to do a deal, and he asks if he will campaign for his own deal, Corbyn says the following:*
- Corbyn says he wants to bring people together;
- Corbyn repeats the point about a trade deal with the US taking seven years;
- And he claims Corbyn has already indicated this deal would put the NHS at risk;
- Etchingham says Corbyn ducked the question about whether he would campaign for remain or leave.
- Question from the Audience: Is the union worth sacrificing for Brexit? Corbyn says he hopes the union does not break up. But Johnson’s deal gives Northern Ireland a different status. There are issues there, he says. This deal is damaging to this country.
- Johnson told the DUP conference he would not allow a border down the Irish Sea – But his deal does involve this.
- Rules out a coalition between labour party ‘and anyone else’ - no deals have been done with SNP.
- Trust has to be earned.
- As an elected representative, you have to listen to people.
- Corbyn has spent a lot of time listening to people, from chief executives to the homeless.
- Corbyn's style is to listen to people and to bring people together.
Additional comments and analysis (fact-checking):
Claim: Courtesy of the guardian, "Jeremy Corbyn claimed that it will take “at least seven years” to negotiate a trade deal between the UK and the US...
Reality: The EU took seven years to negotiate and ratify its deal with Canada, not the US. On average it takes 48 months to do a trade deal. It is highly unlikely that a US deal will be struck until the UK strikes a new deal with the EU. The UK only has 11 months to negotiate a deal with the EU, starting 1 February. The current deadline for a trade deal with the EU is 31 December but many expect the transition period during which negotiations will take place to be extended by one or two years.
Johnson:
- The entire conservative party supports Brexit deal.
- UK will leave the EU on 31st Jan 2020.
- Conservative party can get Brexit deal passed ‘in next few weeks’.
- Johnson says he wants a mandate to govern. But Corbyn wants to strike a new deal, he says.
- He asks if Corbyn wants to do a deal, and he asks if he will campaign for his own deal (see what Corbyn said above).*
- NHS will never be for sale.
- Johnson says the union is the most important thing.
- Johnson says preserving the union is more important than Brexit.
- Question form the audience: Will you stick to your pledge to get the trade deal done by the end of next year? Answer: “Absolutely." (Johnson blags about getting a deal when people said he couldn't).
- Most of Corbyn’s shadow cabinet has spoken against Corbyn’s deal.
- Addressing the questioner who asked, Q: How can we trust you? Johnson says that is an important question.
- The problem was that parliament repeatedly blocked Brexit, he says. He says the way to restore trust is to get Brexit done.
- Johnson claims he is a politician who delivers on his promises.
- Look at what I said I would do as a politician, and look at what I have delivered. ( - Despite he missed the “do or die” pledge to deliver Brexit by 31 October).
- Question: Does the truth matter in this election? Answer: I think it does.
Additional comments and analysis (fact-checking):
Claim: Richard Partington of the guardian explained that Boris Johnson claims voting in a Labour government would mean two referendums next year, one on the EU, one on Scottish independence.
Reality: Richard Partington explained that,
Labour’s policy is to renegotiate a Brexit deal with the EU and then put it to UK voters in a second referendum within six months. Corbyn did not say which way Labour would campaign. Should Labour fail to win a majority next month, it could need the support of minority parties to form a government, including the SNP. Nicola Sturgeon has said she wants an independence referendum before 2021. However, Corbyn has said he would not allow a vote in the “early years” of a Labour government. He also says no deals have been struck with the SNP.
What's the verdict so far?
Neither seems to be leading the debate with the audience laughing at them both. UK public confidence is at an all-time low with their political leaders. Major polls have the Tory party in the lead which has been of benefits to GBP considering the deal that a majority of Johnson's party are backing.
-
UPDATE:
A snap ITV Twitter poll, in fact, put Corbyn in the lead by a huge percentage as follows (29,665 votes):
- 78% Jermy Corbyn won.
- 22% said Johnson won.
YouGov / Sky News snap chat Poll: Who performed best:
- Johnson 51%
- Corbyn 49%
- Excluding don’t knows
- Just over 1,600 respondents
FX implications:
With respect to the pound, considering the lack of liquidity, there could be some movement depending on what is said and how much of the debate is related to Brexit. This was a Brexit section of the debate and should be of the most important for GBP traders.
However, as analysts at TD Securities explained, "Leaders' debates are rarely decisive events, but in such an unpredictable general election, we'll be watching extra closely for any potential turning points." GBP/USD had ben as high as 1.2970 on the day but has given back some ground to the lowest point in the lead into the event down to 1.2910, likely on profit-taking – GBP/JPY is down to test the 200-hour moving average, (Yen is a safe haven and GBP/JPY can be a big mover).


‘Akali-gangster link’: CM says guilty won’t be spared
‘Evidence was serious and required a full-fledged probe; Governor apprised’
by Special CorrespondentPunjab Chief Minister Amarinder Singh on Monday said he would get to the bottom of the ‘politician-gangster nexus’ and will not spare anyone found guilty of such charges.
Investigation by DIG
Reacting to the Shiromani Akali Dal’s (SAD) rejection of the inquiry and their street protests over the issue, the Chief Minister said he had ordered a probe by the Director General of Police after receiving photographs clearly showing links of hardened criminals-gangsters with top Akali leadership.
The Chief Minister said before ordering the inquiry, he had apprised the Governor of these photographs, which, if proved to be authentic, would expose the role, nature and extent of the Akali involvement in patronising criminals and gangsters in the State.
“The evidence was serious and required a full-fledged police investigation, and had asked the DGP to leave no stone unturned into completing the same at the earliest,” he said.
‘Vested interests’
The Chief Minister accused the SAD leadership of hobnobbing with criminals for their own vested interests while Punjab and its people lived under a blanket of deep fear and insecurity for 10 years under their misrule.


WITNESS LIST Human Services Committee March 5, 2001-2:00P HB 1161 On: Murphy, Terry (Texas Commission for The Blind) HB 1173 Registering, but not testifying: For: Young, Jenny (Texas Medical Association) On: Chacon, John (Children's Trust Fund) Chapmond, Thomas (Texas Department of Protective and Regulatory Services) HB 1418 For: Bower, Bruce (Texas Senior Advocacy Coalition) Graves, Tim (Texas Health Care Association) Holtermann, John (Texas Silver-Haired Legislature) Registering, but not testifying: For: Kelemen, George (Self and AARP) Sandlin, Abby (Texas Watch) On: Klein, Angie (Texas Department of Public Safety) HB 1421 For: Bower, Bruce (Texas Senior Advocacy Coalition) Cowgill, Jim (Texas Silver-Haired Legislature) Ender, Lynda (Senior citizens of Greater Dallas and Older Women's League) Flynn, Charlotte (Gray Panthers) Gonzalez Baker, Norma (Self) Hawkins, Sr., John (National Committee to Preserve Social Security and Medicare) Higgins, Carlos (Self and Texas Silver-Haired Legislature) Holtermann, John (Texas Silver-Haired Legislature) Kyker, Chris (Texas Silver-Haired Legislature) Lee, Charles (Telephone Pioneers) Rushing, Linda (Texas Catholic Conference) Smith, Clinton (Gray Panthers) Whiteside, Elsie (Self and Texas Silver-Haired Legislature) Against: Borel, Dennis (Coalition of Texans with Disabilities) Ferris, Beth (Texas Advocates for Nursing Home Residents) Horton, Colleen (Texas Advocates Supporting Kids with Disabilities) Kafka, Bob (ADAPT of Texas) Marshall, Susan (The Disability Policy Consortium Legislative Coalition) Murphree, Susan (Advocacy, Inc.) On: Gilbert, Don (Health and Human Services Commission) Sapp, Mary (Texas Department on Aging) Registering, but not testifying: For: Aguirre, Teresa (Texas Association of Homes and Services for the Aging) Bell, Fred (Texas Silver-Haired Legislature) Burton, Henry (Self) Burton, Miriam (Self) Caldwell, Jim (Texas Silver-Haired Legislature) Campbell, Albert (Self) Coffey, Jeanie (Self) Cummings, Bill (Texas Silver-Haired Legislature) Dickerson, Ben (Self and Texas Department on Aging - Board Member) Effenberger, Barbara (Texas Silver-Haired Legislature) Gibson, Harry B. (Self) Gibson, Marian (Self) Hensarling, Charles (Texas Silver-Haired Legislature) Hooser, Greg (Texas Association of Homes and Services for the Aging) Johnson, Paula (Self) Landry, Jr., Richard (Texas Silver-Haired Legislature) Lehr, Mike (Texas Retired Teachers Association) Moore, Susan (Self) Oliver, Thomas (Self) Parks, Charlotte (Texas Silver-Haired Legislature) Patterson, John (Self) Perkins, Tom (Texas Silver-Haired Legislature) Ralph, Pierson (Self and Funeral Consumer Alliance of North Texas and the Southwest) Ramirez, Reynaldo (Self and Con Ganas) Riffel, Mary (Self) Smith, Constance (Self) Southwood, Bobby (Self) Taff, Lue (Alzheimer's Association Coalition of Texas) Zobel, Ray (Self and Texas Silver-Haired Legislature) On: Anderson, Holly (Self and Area Agency on Aging - Director) Diaz, John (Administration on Aging) Roger, Glenda (Self and Area Agency on Aging - Director) HB 1691 For: Curtis, Frank (Texas Association of Goodwills) Against: Quigley, Sean (On Our Own Services, Inc.) Rido, Nathaniel (Self and Southeast Keller Corporation) Scott, Joe (World Technical Services, Inc.) Ward, Jr., John (Self and Southeast Keller Corporation) On: Knauth, Joe (The Texas House - Houston) Pfluger, Margaret (Texas Council on Purchasing from People with Disabilities) Schwartz, Jonas (Advocacy, Inc.) Registering, but not testifying: On: King, Juliet (Legal Council for TCPPD) HB 1782 For: Hunt, Tamie (Canine Companions for Independence) Napoles, Stacy (Canine Companions for Independence) Schwartz, Jonas (Advocacy, Inc.) HB 1921 For: Chandler, Michele (Self) Dush, Sandra (Self) Forsberg, Susan (Lutheran Social Services Post Adoption Program) Murphree, Susan (Advocacy, Inc.) On: Webster, Sarah (Texas Department of Protective and Regulatory Services) Registering, but not testifying: For: Horton, Colleen (Texas Advocates Supporting Kids with Disabilities) Marshall, Susan (The Disability Policy Consortium Legislative Coalition and The Arc of Texas) HB 1959 For: Hagert, Celia (Center for Public Policy Priorities) On: Denton, Judy (Texas Department of Human Services) SB 36 For: Murphree, Susan (Advocacy, Inc. and the Children's Long-term Care Policy Council) Registering, but not testifying: For: Horton, Colleen (Texas Advocates Supporting Kids with Disabilities) Marshall, Susan (The Arc of Texas) SB 38 For: Hooser, Greg (Texas Association of Homes and Services for the Aging and Private Providers Association of Texas) Registering, but not testifying: For: Aguirre, Teresa (Texas Association of Homes and Services for The Aging) Graves, Tim (Texas Health Care Association) SB 83 For: Hooser, Greg (Private Providers Association) Registering, but not testifying: For: Horton, Colleen (Texas Advocates Supporting Kids with Disabilities) Marshall, Susan (The Arc of Texas) Murphree, Susan (Advocacy, Inc.)


{% extends "instructions/Page.html" %} {% load staticfiles otree %} {% block title %} INSTRUCTIONS
This experiment will consist of four parts.
At the end of the experiment, you will be paid {{ fee }}, plus earnings based on the points you have earned during the experiment. Your points will be converted at an exchange rate of €{{rate}} per point. To sum up, your final payment is given by the following formula:


My New(er) Blog
Thursday, January 5, 2018Out with the old, in with the new(er)!
Although I enjoyed revamping my website back in 2015, I failed to foresee how much the tools I put in place would get in my way. And, damn, did they get in the way! Making minor changes was hard enough, let alone trying to write a blog post. I was even managing two different Git repositories for one static website. All these pain points capitalized on each other creating a tooling nightmare.
Today, I’ve decided to switch out the toolbox and use something better.
Religiosity is not the answer…
Religiously using a bunch of tools to stay productive is just asking for trouble. I shouldn’t torture myself and spend an hour tooling around before I even get to work. I’m better off watching a monkey try to use a hammer.
They say you learn the most when you fail. My failure is evident judging by the absence of posts on this blog. I realize I can’t keep my tools out of the way entirely, but I can simplify the process of using them. I can fix this nightmare with a different tool, a better tool.
Fostering productivity with flexibility
Doing more with less using Haskell.
Haskell’s generality affords its users the opportunity to make virtually anything they please and it’s standard library is very robust. The Haskell Tool Stack makes project setup a breeze and is tightly integrated with the Haskell ecosystem as a whole.
How Haskell and Stack help me
My workflow is greatly simplified:
- No longer am I bogged down with gulp, ruby, or bower and my train wreck of an imperatively defined build tool-chain.
- I can now deploy any change in minutes not hours.
- Uncompiled source code is in the same Git repository as the built site.
- Simply running
make watch
builds the entire site and watches for changes as they happen - Did I mention speed? (Native performance, FTW!)
This means I can (finally) write blog posts when the mood strikes and not feel disheartened at the hand of a cumbersome workflow.
Downsides
Learning curve of Haskell is steep:
- Monads
- Functors
- Type mismatches
- Other headaches
Rarely, dependency hell sneaks up on me, but it’s curtailed by Stack rather well.
Technical details
This is a static site generated with Hakyll and scaffolded with The Haskell Tool Stack. Source code is available in full on GitHub.


hg status
Show files that have changed in the working directory.
More information: home page
- Display the status of changed files:
hg status
- Display only modified files:
hg status --modified
- Display only added files:
hg status --added
- Display only removed files:
hg status --removed
- Display only deleted (but tracked) files:
hg status --deleted
- Display changes in the working directory compared to a specified changeset:
hg status --rev revision
- Display only files matching a specified glob pattern:
hg status --include pattern
- Display files, excluding those that match a specified glob pattern:
hg status --exclude pattern


The Financial Data Protection and Consumer Notification of Data Security Breach Act of 2006 applies to the discovery of or notification pertaining to a breach of the security of the system that occurs on or after July 14, 2006.


Troubleshooting
Here we will explore common issues and their resolutions. Visit me (wayneeseguin) in #rvm on irc.freenode.net and let me help you with any issues and please leave feedback!
Before trying any solution below
- Make sure that you are on the latest gem version (rvm update) or git HEAD (rvm update --head).
- make sure that the sourcing of the rvm file occurs *last* in your profile files (.bash_profile / .bashrc / .zshrc) essentially after any customizations of PATH / functions or aliases.
- Be sure to be using either bash or zsh, rvm (latest versions preferred) is untested at best in other shells.
MySQL
If you are having issues installing MySQL gem for a ruby please visit the MySQL page.
Passenger
If you are having issues getting passenger running with an rvm installed ruby, most likely you missed the '.bin/[ruby string]' comment on the passenger page.
Readline
If you have an error when compiling pertaining to readline, you may need to attempt installing with the following configure option:
rvm install readline ; rvm remove 1.9.1 ; rvm install 1.9.1 -C --with-readline-dir=$rvm_path/usr
Note that this error occurs most often when having a macports installed readline along your path. Next most often is when the readline development headers are not available in your path.
If you simply cannot seem to get this to work you can have rvm install a copy of readline into ~/.rvm/usr like so:
rvm install readline rvm remove 1.9.1 ; rvm install 1.9.1
Be sure you are on either rvm git head or release 0.0.78+ as it has some essential bug fixes for this to work properly.
Then
require "iconv" # => false ?!
If you have issues with iconv not being available in ruby / irb please try the following configure option:
rvm install iconv ; rvm remove 1.9.1 ; rvm install 1.9.1 -C --with-iconv-dir=$rvm_path/usr
Where you replace '/usr/local' with the prefix where your iconv libraries are. (Thanks to Justin Chen for bringing this doosey to our attention!)
If you simply cannot seem to get this to work you can have rvm install a copy of readline into ~/.rvm/usr like so:
rvm install iconv rvm remove 1.9.1 ; rvm install 1.9.1
Be sure you are on either rvm git head or release 0.0.78+ as it has some essential bug fixes for this to work properly.
curl failing, 'curl is' ?!
If you see this:
++ curl is /opt/local/bin/curl -O -L -s -C - ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p383.tar.gz curl: Remote file name has no length! curl: try 'curl --help' or 'curl --manual' for more information
Then maybe you have aliased or symlinked the 'which' command to the 'type' command, revert this and rvm should work.
I can't seem to install the pg gem.
Prepend with a variable assignment for PATH with the location of the pg_config file, for example:
PATH=/Users/wayne/.dbm/postgresql-8.4.0/bin:$PATH gem install pg --no-rdoc --no-ri
Trouble getting Aptana working.
Aptana 2.0.2 has been reported (banksy34) to work with rvm. It must be launched from the command line after selecting the desired ruby. This ensures that Aptana inherits the proper environment settings.
Also note that according to this thread , this same trick also works for getting rvm to work with the 'RadRails 2.0.0' standalone.
After selecting a ruby, rubygems is still showing system gem.
Most commonly this is due to RUBYOPT. rvm attempts to disable it during installation however you may need to manually disable RUBYOPT while installing a ruby. Check the ~/.rvm/log/[ruby you are installing]/rubygems.install.error.log to see if this might be the case.
Also beware that that "--user-install" option will make gems no longer work under rvm since it forces only one directory, which will not work across all interpreters.
My path seems empty / curl not found
This is most often due to your environment being setup incorrectly up when you call rvm for the first time so that the wrong system defaults get recorded. Run 'rvm reset' (or manually remove ~/.rvm/current and ~/.rvm/default*). Next open a new terminal shell and use rvm to select a ruby. This will record new system defaults. One more thing to be aware of is that the sourcing of rvm in your profiles shoul occur essentially last, after any path / alias / function / etc... setup.
rvm() is missing
Do not place exit's and/or returns in the .bashrc and .bash_profile files. This has been found to be one cause of this issue. rvm is a set of bash functions and bash scripts so by having anything return / exit from those it interrupts the rvm's flow.
Ubuntu 9.10 + gem installs failing
using #rvm on Ubuntu 9.10 karmic, you need to delete -O2 from CFLAGS in ruby Makefile, otherwise some gems won't install (bug in gcc 4.4.1).
When in doubt...
If all else fails 'rvm implode' then 'rvm update' If this still does not resolve your particular issue, please visit me (wayneeseguin) in #rvm on irc.freenode.net


SMILLA'S SENSE OF SNOW A film review by Michael Redman Copyright 1997 Michael Redman
*** (out of ****)
Julia Ormond (Smilla) is in her chilly element as a Greenland Inuit loner now residing unhappily in Copenhagen. Her only friend is a young boy who lives in her apartment building. When she finds him dead from a fall from the roof, it is the beginning of a mystery.
The film is heavy in atmospheric mood and engrossing. For the first two-thirds that is. Then things get weird and the movie jumps sideways into an "X-Files" story. The switch from a riddle involving corporate cover-ups (seems to be all the rage) to a science fiction plot is a bit too much to take and the film falls apart at the end.
Wonderful cinematography and settings do their best to keep interest alive and succeed although it would have been nice to have watched the ending to the film that I saw the beginning of.
[This appeared in the 4/24/97 "Bloomington Voice", Bloomington, Indiana. Michael Redman can be reached at<EMAIL_ADDRESS>]
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


CBTU Online Registration
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Gecode::SetExpr Class Reference
Set expressions More...
#include <minimodel.hh>
Classes | |
| class | Node |
| Node for set expression More... | |
Public Types | |
| enum | NodeType { NT_VAR, NT_CONST, NT_LEXP, NT_CMPL, NT_INTER, NT_UNION, NT_DUNION } |
Type of set expression. More... | |
Public Member Functions | |
| SetExpr (void) | |
| Default constructor. | |
| SetExpr (const SetExpr &e) | |
| Copy constructor. | |
| SetExpr (const SetExpr &l, NodeType t, const SetExpr &r) | |
| Construct expression for type and subexpresssions. | |
| SetExpr (const SetVar &x) | |
| Construct expression for variable. | |
| SetExpr (const LinIntExpr &x) | |
| Construct expression for integer variable. | |
| SetExpr (const IntSet &s) | |
| Construct expression for constant. | |
| SetExpr (const SetExpr &e, NodeType t) | |
| Construct expression for negation. | |
| SetVar | post (Home home) const |
| Post propagators for expression. | |
| void | post (Home home, SetRelType srt, const SetExpr &e) const |
| Post propagators for relation. | |
| void | post (Home home, BoolVar b, bool t, SetRelType srt, const SetExpr &e) const |
| Post propagators for reified relation. | |
| const SetExpr & | operator= (const SetExpr &e) |
| Assignment operator. | |
| ~SetExpr (void) | |
| Destructor. |
Detailed Description
Set expressions
Definition at line 1062 of file minimodel.hh.
Member Enumeration Documentation
Type of set expression.
- Enumerator:
NT_VAR Variable.
NT_CONST Constant.
NT_LEXP Linear expression.
NT_CMPL Complement.
NT_INTER Intersection.
NT_UNION Union.
NT_DUNION Disjoint union.
Definition at line 1065 of file minimodel.hh.
Constructor & Destructor Documentation
| Gecode::SetExpr::SetExpr | ( | void | ) | [inline] |
Default constructor.
Definition at line 48 of file set-expr.hpp.
| Gecode::SetExpr::SetExpr | ( | const SetExpr & | e | ) |
Copy constructor.
Definition at line 647 of file set-expr.cpp.
Construct expression for type and subexpresssions.
Definition at line 603 of file set-expr.cpp.
| Gecode::SetExpr::SetExpr | ( | const SetVar & | x | ) |
Construct expression for variable.
Definition at line 579 of file set-expr.cpp.
| Gecode::SetExpr::SetExpr | ( | const LinIntExpr & | x | ) | [explicit] |
Construct expression for integer variable.
Definition at line 595 of file set-expr.cpp.
| Gecode::SetExpr::SetExpr | ( | const IntSet & | s | ) |
Construct expression for constant.
Definition at line 587 of file set-expr.cpp.
Construct expression for negation.
Definition at line 615 of file set-expr.cpp.
| Gecode::SetExpr::~SetExpr | ( | void | ) |
Destructor.
Definition at line 642 of file set-expr.cpp.
Member Function Documentation
Post propagators for expression.
Definition at line 652 of file set-expr.cpp.
| void Gecode::SetExpr::post | ( | Home | home, | |
| SetRelType | srt, | |||
| const SetExpr & | e | |||
| ) | const |
Post propagators for relation.
Definition at line 661 of file set-expr.cpp.
| void Gecode::SetExpr::post | ( | Home | home, | |
| BoolVar | b, | |||
| bool | t, | |||
| SetRelType | srt, | |||
| const SetExpr & | e | |||
| ) | const |
Post propagators for reified relation.
Definition at line 666 of file set-expr.cpp.
Assignment operator.
Definition at line 632 of file set-expr.cpp.
The documentation for this class was generated from the following files:
- gecode/minimodel.hh (Revision: 15172)
- gecode/minimodel/set-expr.cpp (Revision: 15141)
- gecode/minimodel/set-expr.hpp (Revision: 12441)


UKCloud Limited (“UKC”) and Virtual Infrastructure Group Limited (“VIG”) (together “the Companies”) – in Compulsory Liquidation
On 25 October 2022, the Companies were placed into Liquidation with the Official Receiver appointed as Liquidator and J Robinson and A M Hudson simultaneously appointed as Special Managers to manage the liquidation process on behalf of the Official Receiver.
Further information regarding the Liquidations can be found here: https://www.gov.uk/government/news/virtual-infrastructure-group-limited-and-ukcloud-limited-information-for-creditors-and-interested-parties
Contact details:
For any general queries relating to the Liquidations please email<EMAIL_ADDRESS>For customer related queries please email<EMAIL_ADDRESS>For supplier related queries please email<EMAIL_ADDRESS>How to create a key vault using the UKCloud Azure Stack Hub portal
Overview
Key Vault in Azure Stack Hub helps safeguard cryptographic keys and secrets that cloud applications and services use. By using Key Vault, you can encrypt keys and secrets.
The following process shows you how to setup a vault within Azure Stack Hub's Key Vault, store a secret in the vault and how to view the secret using the Azure Stack Hub Portal.
Prerequisites
To complete the steps in this guide, you must have appropriate access to a subscription in the Azure Stack Hub portal.
Creating a new key vault
Log in to the Azure Stack Hub portal.
For more detailed instructions, see the Getting Started Guide for UKCloud for Microsoft Azure.
In the favourites panel, select Create a resource.
In the New blade, select Security + Identity.
In the Security + Identity blade, select Key Vault.
In the Create key vault blade, enter the following information:
Basics tab
Subscription - This is your UKCloud for Microsoft Azure subscription.
Resource group - Select an existing resource group, or create a new one by clicking the Create new link and then typing a name for your new resource group in the pop-out window.
Key vault name - The name of the key vault.
Region - This will be
frn00006
, which is the Azure Stack Hub region.Pricing tier - Azure Stack Hub only offers the Standard pricing tier.
Access policy tab
Enable Access to: - Select the check boxes to specify whether certain Azure services are allowed access to the key vault.
Current Access Policies - Select +Add access policy to configure the permissions that a user, group or service principal has to the key vault.
Click Review + create.
On the Review + create tab, review the selections you've made and then click Create to start the deployment.
You can monitor the progress of your key vault's deployment by clicking the Notifications icon.
Adding a secret to the key vault
Once the key vault has been deployed, navigate to it by clicking All services in the favourites panel, then selecting Key Vaults under the Security section.
Select your key vault from the list.
In the Settings section of the key vault blade, select Secrets.
On the Secrets page, click the + Generate/Import button.
In the Create a secret blade, enter the following information:
Upload Options - Manually enter a secret or upload an x.509 certificate.
Name - The name of the secret. Secret names can only contain alphanumeric characters and dashes.
Value - The value you are storing as a secret.
Content Type - The type of content contained in the secret (for example, Password). There are no pre-defined values for this field.
Activation Date - Specifies when the secret will become active.
Expiration Date - Specifies when the secret will become inactive.
Enabled - Indicates whether or not the secret data can be retrieved.
Click Create.
Viewing the secret
Once you've created the secret, select it on the Secrets page.
On the secret's blade, select the current version.
On the current version's blade, click the Show secret value button.
Feedback
If you find a problem with this article, click Improve this Doc to make the change yourself or raise an issue in GitHub. If you have an idea for how we could improve any of our services, send an email to feedback@ukcloud.com.


D. Alex Hughes
Adjunct Assistant Professor, UC Berkeley School of Information
School of Information
102 South Hall Drive
Berkeley, CA 94720
I am an adjunct assistant professor in the University of California, Berkeley School of Information. In 2016 I received my PhD in Political Science from the University of California, San Diego. I also studied at the University of Michigan where I graduated with a BA in Political Science and a BA in Econometrics.
I research how group identity shapes access and behavior in politics. Often, this takes the form of experiments. My research has been published in Political Behavior, Perspectives on Politics, California Journal of Politics and Policy, The Lancet, PNAS, and field journals.
Please see my projects page for more information about my research.
I am proud to lead the multiply-awarded course Experiments and Causality in the MIDS program at UC Berkeley.
You may download a copy of my current CV here.
news
| Jul 19, 2017 | I’m headed to San Diego! Waves, coffee and research. Week of July 24. |
| Jul 18, 2017 | Good news! (For me). This website is now up! |


pyObjective!¶
pyObjective is a python package to complement scipy’s optimize toolbox.
Introduction¶
pyObjective is a tool to define complex models and solve them using scipy’s optimize module.
Scipy however works by asking for a function, and the bounds and returns a vector that optimizes the function. Scipy does not have any understanding of what the variables are and how they are arranged. This makes using it sometimes tricky: the user is required to know and keep track of the variables and the respective variable bounds.
Instead, pyObjective allows a user to define a variable on the fly, defining the variable bounds at the time the variable is created. From there the variable is added to the model, and the model’s solve method is called to optimize the cost function.
The simplest possible example is below, but more in-depth examples are available on the left.
Quick Start¶
Here is a minimal example on finding the minimum of \(x^2\).
from pyObjective import Variable, Model
# define a variable, with an initial guess and the (lower, upper) bounds.
x = Variable("x", 1, (-2,2))
# define a model
m = Model()
# add the variable to the model
m.add_var(x)
# define a cost function
def cost():
return x()**2
#define the cost function as the function to optimize.
m.objective = cost
# solve the problem
m.solve()
m.display_results()
and this gives the formatted output
+--------+----------------------+
| Cost: | 6.15615700998697e-18 |
+--------+----------------------+
+--------+----------------------+
+----------+-----------------------+-------------+
| Variable | Value | Description |
+----------+-----------------------+-------------+
| x | 2.481160416012429e-09 | None |
+----------+-----------------------+-------------+
which is very close to the true optimal, \(x=0\). The small deviation occurs because the underlying method used is scipy.optimize.dual_annealing. This method is effective for problems which have many local minima, but is fundamentally a stochastic method, and does is not guaranteed to get the numerically exact result.
Look at the examples to see examples of how to use the package.
Future Developments¶
The next few steps include:
adding linear and non-linear constraints
support for units
create model instances with variables fully defined, so they can be inspected, or used in the future.
adding more representative examples.


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Making sense of big applications
with AppDynamics
Evan Fuller '16, Matt Cannizzaro '08
Suppose you were put in charge of operations at a major bank.
How would you manage it?
Well, a bank is not just one big program like your CS32 project.
If you manage it, you manage hundreds of different services,
running on thousands of separate machines, maybe running in another company's cloud.
How would you know if it was working or broken? Or just slow?
How would you know if your users were having a good experience?
I'm Matt Cannizzaro, this is Evan Fuller. We work at AppDynamics,
and we help people run really big and complicated applications.
We're going to spend most of this talk on technical stuff,
but I just want to give you a little more context about our company first.
AppDynamics
Started in 2008
Downtown SF
1400+ employees (300+ engineers)
Acquired by Cisco in March
Help wanted!
Let's build a web app
Say you're building a web app. It might start small, but
hopefully it will need to grow. You can get bigger and bigger
boxes, until you hit the limit of what a single machine can
handle. Then what? There's really only one choice: you
need to distribute your application across multiple nodes.
Easier said than done
(╯°□°）╯︵ ┻━┻
Writing a distributed application is not an easy task; there's
a completely new set of engineering problems that you'll
need to tackle. Soon, we'll talk about one of the most important
of these many problems: performance. But first, we'll examine a
few real-world examples of distributed applications.
Airbnb
(https://aws.amazon.com/solutions/case-studies/airbnb/)
From this screenshot from AWS Re-Invent 2013, you can see the myriad of services
that Airbnb deploys throughout their tech stack. They deploy EC2 instances for serving content,
multiple types of storage (SQL and NoSQL), and object storage. As of 2013, they deployed over 1,000
EC2 instances for serving web content, and 50 TB worth of photos in S3.
Nathan Blecharczyk:
"pretty much any time we can use an AWS instance to solve a problem, we will, so that we don't have to solve that problem ourselves"
It is clear that over the past several years, an increasing number of companies have shifted their
perspectives to rely on collections of external web services from AWS. The increasingly complicated
topology of an application is what necessitates AppDynamics.
MLB
Player Tracking System
(https://aws.amazon.com/solutions/case-studies/major-league-baseball-mlbam/)
As one last example of an application's topology, examine MLB's Player Tracking System. This system
collects data tracking the position of the ball and players every game of the season, which in
aggregate represents 7 TB per game, or 17 PB per season. The system is implemented across so many
components in order to handle many use cases: for example, ElastiCache is used for caching large
chunks of data in memory while performing compute-heavy analysis tasks.
Keep in mind, the screenshot on this slide only shows the topology for the set of use cases I've just
gone over here. Every other project managed by MLB Advanced Media likely has similarly complex systems.
Why performance matters
* courtesy of Akamai Online Retail Performance Report, 2017
There's a certain satisfaction in writing efficient, fast code.
But fundamentally, why do you need to care about performance?
Making good use of the infrastructure and resources that you
have is important, but it's not (usually) the most important thing.
Your app exists to solve your users' problems, but users are
impatient: if your app is slow, users will abandon it. This
problem is particularly bad if users have many alternatives
and the cost of switching is low. Think about booking a flight
on a travel site. If one site is slow, it's really easy to
try one of its competitors instead. If your app is a business,
bad performance costs money.
Highlights from the Akamai report included here indicate that
users expect the apps they are using to be responsive on the
resolution of a few seconds.
How you can measure performance?
Once you realize that you care about performance, you'll want
to understand how your app performs by measuring it. How
might you go about doing that? It would be reasonable to
start by collecting some data from each node your app is
running on, like CPU and memory utilization, how often
garbage collections are running, and things like that. This
is better than nothing, but not by much. Users don't care
about any of these things: they care about their experiences.
It's almost certainly bad if 5% of your users have a poor
experience with your app. Imagine if Google dropped one out of
every twenty searches that you ran! But could you detect
such a problem by looking at, say, CPU utilization? You'll
need a deeper understanding before you can find and fix many
types of problems.
Your app is not static
Traditionally, applications were deployed only a few times a
year, and each deployment was a major event. The rise of the
web and distributed applications has made it much easier to
deploy more often, so it's not uncommon for developers to
deploy new versions of their web apps multiple times in a
single week. This is great news for users, who benefit from
new features and bug fixes, but it introduces new problems
for performance monitoring. Since your app is constantly
changing, your performance monitor needs to be able to
quickly adapt to the new environment. A tool that requires
lengthy or complex configuration slows you down and is not
suitable for modern web application development.
Requirements
Distributed
Tells the story as your users experience it
Require minimal manual configuration
To recap, we need our performance monitor to be:
1. Distributed, because your app is.
2. Monitor your application performance, not the
infrastructure, because your users experience the app.
3. Dynamically adapt to changes in your environment,
because you don't have time for configuration.
Okay, let's build it!
Telling the story of a request
We suspect that infrastructure monitoring is not enough, so
how will we measure performance? Your users interact with
your app over HTTP, so that's a logical place to start. If
we know when a request arrives at your server, and when your
server finishes sending the response, that's a decent
measure your app's performance from the user's perspective.
You know when requests arrive and when the corresponding
responses are sent, so you can identify which requests are
slow, or fail outright. This helps you know when your app
is having problems, but it doesn't help you in figuring out
why. How can we do that?
Remember that your app is distributed, so before your app
can respond to the user's request, it probably needs to make
some requests of its own to various parts of your backend,
receive and process the responses, and then generate the
response that your user sees. Let's assume that all this
communication happens over HTTP. Can we tie all these related
HTTP requests and responses together, so that you can tell
the full story of a single user request? What if we could
somehow tag related requests with some identifying
information?
What we've got to work with
GET /dumprequest HTTP/1.1
Host: djce.org.uk
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.76 Safari/537.36
Referer: https://www.google.com/
Accept-Language: en-US,en;q=0.8
Here's an example of an HTTP request. It has these interesting
components:
1. The HTTP method, like GET or PUT.
2. The URI, which along with the method, helps you determine
what the user is requesting.
3. The headers, which are essentially a list of key-value
pairs.
4. The request body, which is optional and could contain
arbitrary data.
If we want to add some data to an HTTP request, headers are
attractive, since we can easily add a header with some
identifying information without changing the behavior of the
rest of the application.
Tag and follow
When a request from a user first arrives, start by generating
a unique ID for it. At some point, the routine that is
processing the user's request may make some requests to other
nodes in your application. When this happens, add the unique
ID as a header in the request. Using this method, we can
discover every HTTP request and response that's involved in
servicing a user's request, and if the user's request is
slow, or encounters an error, we can determine where the
problem lies.
Of course, out in the wild, you'll often find protocols other
than HTTP being used in the backend. The same sort of
principles apply for other protocols, but we won't get into
the details today.
Implementation
public void send(Request req)
{
if (Profiler.isInTransaction()) {
// We are a middle node in a distributed transaction.
requestID = Profiler.getCurrentTransactionID()
} else {
// We are the root node of a distributed transaction.
requestID = Profiler.createTransactionID()
}
long startT = System.nanoTime()
req.addHeader("REQUEST_ID", requestID)
...
long endT = System.nanoTime()
Profiler.reportRequest(req, endT - startT, requestID)
}
Let's take a quick look at the implementation of the
algorithm we just described. Here's the code we'd need to
add to the routine that sends requests to tag outgoing
requests.
Implementation
public void receive(Request req, Response res)
{
if (req.hasHeader("REQUEST_ID"))
Profiler.setCurrentTransaction(req.getHeader("REQUEST_ID"))
...
}
And here's the code we'd need to add to the routine that
handles incoming requests.
Now that we know what we want to do, how can we do it? You
could write this code in each part of your app that handles or
makes HTTP requests that passes these identifiers between
requests. It would be fairly straightforward, but tedious
and error-prone. Worst of all, it makes it hard to add new
code and nearly impossible to integrate a third party library.
So what we can do?
How your code runs
For argument's sake, let's assume that your app is written
in Java. It starts out as source code, which the Java compiler
transforms into Java byte code during compilation. When it's
time to run your program, you can't just run the byte code
as is; your CPU doesn't understand byte code. So the Java
Virtual Machine does another transformation, this time turning
the byte code into native machine code. You'll recall that this
step is called just-in-time compilation, or JITing.
Usually each step of this process preserves the behavior of
your code, but you certainly could imagine a transformation
that doesn't. A compiler or JIT that performed such a
transformation would be considered buggy, but if you were
careful, you could transform code in a way that
changes its behavior in a useful way while not interfering
with the purpose of the program.
In theory, you could do your code transformation on either
the source code, the byte code, or the machine code. Changing
the source code would be a nightmare for the app developers,
and doing machine code transformations would require altering
the JVM and result in an implementation that's dependent
on CPU architecture, so neither is particularly interesting.
Java byte code, on the other hand, can be altered transparently,
as far as developers are concerned, and by definition, is
independent of any specific CPU architecture.
Instrumenting an app
public void sendHttpRequest(Request request) {
...
}
Let's say that the method that implements HTTP requests in
your app looks something like this. Since few apps
re-implement this functionality from scratch, this method
is probably part of a library. In order to instrument it,
we need to transform the body of the method from this, into...
Instrumenting an app
public void sendHttpRequest(Request request) {
Profiler.beginHttpRequest(request);
...
Profiler.endHttpRequest(request);
}
... this. We can use a technique called byte code injection
to perform this transformation at runtime. Here's how it works:
when the JVM is running a program and it needs to find the
definition of a class, it uses a special sort of object
called a class loader. The JVM provides an API to hook into
the class loading process so that your code is called after
a class loader has found the definition of a class, but
before that class's definition is available to the rest of
the program. We use this opportunity to examine
the class being loaded, and if it happens to be a class that
we are interested in instrumenting, we write new byte code
into the bodies of its methods.
Now that we are running instrumentation code at the beginning
and end of each interesting method, we can keep track of how
long each HTTP request takes, and write identifying information
into the request headers as well. This is all we need to
implement the tag and follow scheme for instrumenting HTTP.
This technique is fundamentally straightforward, but since
our instrumentation code runs within the program being
monitored, this part of our system, called the agent, needs
to be thoughtfully engineered and tested. If the agent is
buggy, it's very possible for it to bring an application down,
which obviously defeats the whole purpose. Since the agents
monitor apps in production, they also need to keep overhead
to a minimum: we generally promise our customers no more than
2% overhead on average. AppDynamics has agents for Java,
.NET, PHP, Javascript, node.js, Android, iOS, and more.
These agents work in different ways, but the goals and
principles are similar.
Making sense of the data
In a production environment, there are many agents reporting
quite a large amount of data. This means that we need to have
a scalable way of collecting and aggregating all this data,
and also need to have effective visualizations to help
our users make sense of it. Let me show you our product and
demo some of the basic features.
Demo should cover:
1. Flow map
2. BTs
3. Snapshots
4. EUM
Unsolicited advice
Or, some things that you probably don't think matter, but actually really do matter.
Besides telling you about AppDynamics, Evan and I thought
it would be nice to give you something more generally useful.
We thought we could give you some unsolicited advice for your
first year after college.
You might be thinking "why the hell should I listen to this guy?
He's just some alum from years ago recruiting for some random company!"
Which is totally reasonable. I don't expect you to just take my word
on this stuff. Instead, listen to my arguments and see if you're convinced.
And I welcome discussion during this part, so please interrupt me
if you have questions.
1) Do code reviews
Getting your code reviewed makes you a better programmer, for the same reason that
getting your essays graded makes you a better writer. This one is pretty simple.
But there's also a huge benefit for the reviewer. Who here is or has been an
undergrad TA or head TA? Remember how much better you learned the material
when you TA'ed the class than whan you took it originally? Reviewing code is like that.
It makes you engage with the material on a deeper level. It expands your perspective
and forces you to re-examine your beliefs about what good code is.
When you interview, ask about code reviews. It's very diagnostic. A culture that does code reviews
is a culture that values quality and craftsmanship. That's the kind of place where you're really going
to learn.
2) Learn tech that transfers
Not proprietary stacks.
I used to work at Adobe, and one of the reasons I left is that I had become an expert on Flash, which is
a dead technology. When I applied to my next job, I basically had to apologize for that.
So one obvious tip is: don't waste time on dead technology.
But there's a subtler issue too, which is proprietary technology - technology that is owned and
maintained only by one group of people. All the reasons that people don't like to USE proprietary
technology apply at least twofold when it comes to LEARNING proprietary technology. Proprietary
knowledge is by definition not useful outside of a very small context.
That means it has virtually no value when you look for your second job.
I know you're all focused on your first job right now, but you should always keep in mind how your first
job is going to prepare you for your second job.
Now, you might think "isn't it more important that I learn transferable skills, ideas, and principles?"
Yes, of course that's more important. But when you only know Adobe- or Google- or Facebook-specific
libraries, you are a little bit boxed in. If you know all the industry-standards, on the other hand,
you're like a code McGuyver: when you non-technical friend comes along with some startup idea,
you can just make it happen.
I have to say that it's pretty hard to avoid proprietary knowledge at a big company.
At most big companies, you will be surrounded by layers of proprietary software in every direction.
Small companies just haven't been around long enough to accumulate that. They also don't have the
luxury to indulge in "not invented here" syndrome.
I also need to make a plug for AppDynamics specifically. Facebook has this amazing VM for running
PHP code super fast. If you work at Facebook, you can learn how that works. If you work at Google,
you can learn how about Google's insanely scalable database works. But if you work at AppDynamics,
you can learn about how TiVo works, how Nasdaq works, how Expedia works, how Okta works.
Because our job is to undestand, and help our customers understand, how these big apps really work.
It doesn't get much more generally-applicable than that!
3) Get real feedback
The first product I worked on at Adobe was really cool. We talked to potential customers and they
thought it was cool. We worked hard on it for 3 years and shipped it.
Then we found out there was no real market for it because it didn't really fit into
anyone's workflow.
The "potential customers" didn't mention that part. It's really easy to say "that's so cool, I would
totally use that!" It's a totally different thing to actually break your habits and change your
workflow.
On my product at AppDynamics, we did it right. We shipped a working version (with a limited feature set)
three months after we started the project. And people actually
started using it. They filed bugs! They made feature requests. And we added the things they wanted.
And we got more users. And it was glorious.
I had an interesting experience at AppDynamics that expanded my perspective again. Shortly after
we shipped my product, my team was in a meeting with the founders and the VP of engineering,
deciding what to work on next. There were two broad possibilities: features that would make the product
more useful (since it was fairly limited), and features that would allow us to charge people to
use the product. I said "I think we should focus on making the product useful before worrying about
charging for it. Once we have something we know is valuable, then we can charge for it." Jyoti, our founder
(who is also an engineer), replied "How will we know if it's valuable if nobody is paying for it?"
At first that struck me as just really really...capitalistic. But as I thought about it, I realized
he had a point: people who are using a free product will not necessarily give you the feedback you need
to make a product somebody is willing to pay for.
Now, I'm not saying this is the only way to do it. What I am saying is that if you want customer
feedback to help guide your decisions, you need to think hard about how to get the right feedback.
4) Stay close to the business
Sorry, this means money.
Full-stack visibility.
When I looked for my first job, I thought "I want to work on hard problems with smart people, and maybe
do something that improves the world". And most of my friends had the same criteria. It's very tempting
to not worry too much about the business. But there are some business considerations that can have a
material impact on your career.
First, a very harsh reality: if you're not working on something that generates revenue, your project
is expendable. It doesn't matter what your manager says. It doesn't matter if the CTO is coming around
your desk every week to check on the status. If it doesn't solve some real problems for some real people
who know they have these problems and are willing to pay you to solve them, it is a ship adrift on the
fickle seas of corporate strategy. Maybe the CTO gets pushed out of the company for some reason, and the
new CTO doesn't understand the value of your product. Maybe the CEO can't figure out how to justify
the cost on the quarterly earnings call.  But if it's
solving real problems for real customers and making money...it has much better chances.
Second: it's really valuable talk to non-engineers on a regular basis.
If you don't talk to the sales team, you really don't know anything about your business.
The same goes for operations, customer support, and marketing.
This will make you better at your job. It will make you more valuable to the company.
You will learn a lot. And if you think you might want to start your own company some day,
you'll have a huge advantage because you'll know how a business really works.
Note that this is really hard to do in a big company.
Both of these are also much easier to do in small companies. Most small companies don't have the luxury
of working on non-business-critical things for any length of time. And in a small company, you'll be
surrounded by non-engineers simply because there aren't enough engineers to buffer you from them.
5) Beware of tech debt
Your code lives longer than 3 months!
Throughout college and past tech internships you may have had, you likely have never worked in the
same body of code for longer than 3 months. In the process of writing said code, you likely cut a few
corners and used a few hacky workarounds to make something work for the sake of wrapping up a project.
Once you start working full-time, however, you're going to have to live with the consequences of these
kinds of shortcuts. When you take shortcuts to save yourself a few days of work, your best case scenario
is that you have to solve the problem later on. Your worst case scenario is you establish a pattern in
your codebase that other team members will then take to heart, and then a large section of logic may
become built on a flimsy foundation. It's almost always better to do it right the first time, rather
than punting responsibilities for later.
6) Coffee, lunch, beer
You will spend more time with your coworkers in an average week than most of your college friends. The
value you gain from getting to know them is immense not only on a personal level, but also on a career
level. These people can help mentor you about technical issues and design patterns, but also about the
mistakes they've made in their careers, and how to navigate your own career best.
Don't be afraid to extend these sorts of meet-ups outside of your team! I have met with the CEO and
an engineering VP multiple times just to catch up on each other's lives, give mutual feedback, and
discuss careers. Getting to know lots of different perspectives throughout the corporate ladder can
only help your understanding of your company and career.
Pro tips summary:
Go to lunch and happy hours with your coworkers
Beware of tech debt
Stay close to the business
Get real feedback
Learn tech that transfers
Do code reviews


{% extends "driving/layout.html" %} {% block page_title %} Driving lessons {% endblock %} {% block content %} {% include "includes/phase_banner_beta.html" %} Learn to drive Take your driving test {{formData | safe}} Check when your driving test is Check when your driving test is Driving licence number For example ABCDE123456AB1AB {% endblock %}


PushButton
__init__(
self,
master,
command=None,
args=None,
text="Button",
image=None,
pady=10,
padx=10,
grid=None,
align=None,
icon=None,
visible=True,
enabled=None,
width=None,
height=None)
What is it?
The PushButton
object displays a button with text or an image, which calls a function when pressed.
How do I make one?
Create a PushButton
object like this:
from guizero import App, PushButton
def do_nothing():
print("Button was pressed")
app = App()
button = PushButton(app, command=do_nothing)
app.display()
Create a picture PushButton
with an image like this:
from guizero import App, PushButton
def do_nothing():
print("A picture button was pressed")
app = App()
button = PushButton(app, image="button.gif", command=do_nothing)
app.display()
Depending on your operating system and whether you installed the guizero additional image features will determine what image types you can use for PushButton
. By default GIF and PNG are supported, except macOS which only supports GIF.
Starting parameters
When you create a PushButton
object you must specify master
and you can specify any of the optional parameters. Specify parameters in the brackets, like this: button = PushButton(app)
| Parameter | Takes | Default | Compulsory | Description |
|---|---|---|---|---|
| master | App, Window or Box | - | Yes | The container to which this widget belongs |
| command | function name | None | - | The name of a function to call when the button is pressed. |
| align | string | None | - | Alignment of this widget within its container. Possible values: "top" , "bottom" , "left" , "right" . |
| args | list | None | - | If you wish to pass any arguments to the function specified in the command parameter, you can specify them as a list |
| grid | List [int, int] | None | - | [x,y] coordinates of this widget. This parameter is only required if the master object has a grid layout. |
| image | string | None | - | The file path, tkinter.PhotoImage or PIL.Image you wish to display. If both an image and text are specified, the image will override the text. |
| padx | int | 10 | - | How much horizontal padding to add between the text/icon and the edge of the button. |
| pady | int | 10 | - | How much vertical padding to add between the text/icon and the edge of the button. |
| text | string | "Button" | - | The text to display on the button |
| visible | boolean | True | No | If the widget should be visible. |
| enabled | boolean | None | No | If the widget should be enabled. If None (the default) the enabled property will be inherited from the master |
| width | size | None | No | Set the width of the widget in characters or pixels if its an image button or to "fill" |
| height | size | None | No | Set the height of the widget in characters or pixels if its an image button or to "fill" |
Methods
You can call the following methods on a PushButton
object.
| Method | Takes | Returns | Description |
|---|---|---|---|
| after(time, command, args=None) | time (int), command (function name), args (list of arguments) | - | Schedules a single call to command after time milliseconds. (To repeatedly call the same command, use repeat() ) |
| cancel(command) | command (function name) | - | Cancels a scheduled call to command |
| destroy() | - | - | Destroys the widget |
| disable() | - | - | Disables the widget so that it is "greyed out" and cannot be interacted with |
| enable() | - | - | Enables the widget |
| focus() | - | - | Gives focus to the widget |
| hide() | - | - | Hides the widget from view. This method will unpack the widget from the layout manager. |
| padding(padx, pady) | padx (int), pady(int) | - | Sets the amount of x (horizontal) and y (vertical) padding between the text/icon and the edge of the button |
| repeat(time, command, args=None) | time (int), command (function name), args (list of arguments) | - | Repeats command every time milliseconds. This is useful for scheduling a function to be regularly called, for example updating a value read from a sensor. |
| resize(width, height) | width (int), height (int) | - | Sets the width and height of the widget |
| show() | - | - | Displays the widget if it was previously hidden |
| toggle() | - | - | Changes the state of the button to the opposite of its current state - if it is currently enabled, disable it and vice versa. |
| update_command(command, args =None) | command (function name), args (Optional List of arguments to be passed to command) | - | Updates the function to call when the button is pressed . |
Properties
You can set and get the following properties:
| Method | Data type | Description |
|---|---|---|
| align | string | The alignment of this widget within its container |
| bg | color | The background colour of the widget |
| enabled | boolean | True if the widget is enabled |
| font | string | The font of the text on the button |
| grid | List | [x,y] coordinates of this widget. This parameter is only required if the master object has a grid |
| height | size | Set the height of the widget in characters or pixels if its an image button or to "fill" |
| image | image_source (string) | The file path, tkinter.PhotoImage or PIL.Image you wish to display. |
| master | App or Box | The container to which this widget belongs |
| text | string | The text on the button |
| text_color | color | The colour of the text on the button |
| text_size | int | The size of the text on the button |
| tk | tkinter.Button | The internal tkinter object, see Using tkinter |
| value | int | Returns 1 when the button is pressed, 0 if the button is released |
| visible | boolean | If this widget is visible |
| width | size | Set the width of the widget in characters or pixels if its an image button or to "fill" |
Refer to a property as <name of widget>.property
. For example, if your PushButton
object is called button
you would write button.value
.
You can set the property (for example button.bg = "red"
) or get the value of the property to use (for example print(button.bg)
).


Austin Powers: The Spy Who Shagged Me Rating (out of five): ** Starring Mike Myers, Heather Graham, Michael York, Robert Wagner, Rob Lowe, Seth Green, Mindy Sterling, Verne Troyer, Will Farrell, Kristen Johnston and Elizabeth Hurley Directed by M. Jay Roach Written by Myers and Michael McCullers Rated PG-13 for sexual and, at times, very crude humor Theatrical aspect ratio of 2.35:1 Released in 1999 Running 95 minutes
If only Austin Powers: The Spy Who Shagged Me had been just half as original, zany, silly and totally enjoyable as its predecessor, it would have easily been one of this summer's biggest pleasures. If only. In fact, The Spy Who Shagged Me is the exact opposite of the original; instead of refreshing the audience with one clever parody after another, the filmmakers bombard us with used-up, tired jokes taken directly from the first one.
Take the scene where Austin Powers (again played by Mike Myers, but with only a fraction of the giddy enthusiasm he displayed previously) confronts a henchmen on the side of a cliff. After being pushed off the ravine, the bad guy is of course assumed dead. But suddenly, we hear a pleading voice coming from down below; he's only injured. A similar scene played very well in the original International Man of Mystery, but here I was insulted by it. Did the filmmakers really believe the audience would laugh at a rip-off?
Apparently I overestimated the intelligence of the average movie-goer, considering that the film has pulled in over $200 million in domestic theatrical grosses alone. Do I hear the sound of a franchise heading our way?
Having said that, though, I still cannot deny the film its merits. The basic plot was delightfully silly enough to sustain my interest somewhat; Dr. Evil (Mike Myers, in the second of his three roles), having constructed a time machine, goes back to the year 1969 in an attempt to snatch Austin Power's "mojo" (don't you just love that word?) whilst he is cryogenically frozen. When Austin gets wind of this (after a great intro explaining the absence of Elizabeth Hurley's Vanessa Kensington) , he too travels back in time to re-claim his sexual drive, accompanied by the hot-to-trot Felicity Shagwell, played by Heather Graham. This sounds stupid, I know, but in the movie it starts to make some kind of weird, off-the-wall sense, and it worked for me.
Then there's Mini-Me (Verne Troyer), a... petite clone of Myer's Dr. Evil, exactly 1/8 in size. Troyer's persona alone gains the film an extra half-star, contributing to one particularly hilarious scene where he attempts to nibble on his own Mini-Mr. Bigglesworth. Just try to ignore the fact that, at 2'8'', he would make Dr. Evil's height rise to just over 21 feet. No matter.
However, there are only about four hearty laughs throughout the entire hour and a half (the most notable being the now infamous tent scene), and that just isn't enough to warrant even a minor recommendation. If there is in fact an "Austin Powers 3", they should just kill off secret agent Powers and put the emphasis on Dr. Evil and Mini-Me. Unconventional, yes, but there's no denying that it'd make for a better movie.
*Find all of Jason's reviews online at http://www.geocities.com/Hollywood/Boulevard/7475 **Complimentary movie ticket courtesy of Valley Cinemas at http://www.movie-tickets.com
Copyright 1999 Jason Wallis
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


I am currently studying IT in Oulu University of Applied Sciences. I always wanted to be a part of international team, where I can pursue my potential in programming. For these two years that I am studying here, I have been learning and mastering web development. Now I'm looking forward to develop my skills and contribute to the sustainable development of employers in my field.
This is my portfolio for Interactive Multimeida Programming in DIN16SP guided by Veikko Tapaninen.


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Magic the Gathering is TM and copyright Wizards of the Coast, Inc, a subsidiary of Hasbro, Inc. All rights reserved. This site is
unaffiliated.
cuesbey is
open source


--- title: Getting started with blogdown author: Frederick Boehm date: 2017-05-07 publishdate: 2017-05-07 lastmod: 2018-11-10 type: "post" comments: true ---
While browsing the internet, I stumbled upon Rstudio’s new package blogdown
. I read posts from Karl Broman and found the the book that the package author - Yihui Xie - freely shares.
One tricky part of setting up the website involved the DNS settings. I bought the site fboehm.us
through google domains. While the blogdown book provides instructions for DNS settings for other domain name providers, at the time I set up my site, they hadn’t written instructions for use with google domains. Fortunately, it was not too difficult, and, through trial and error, I managed to succeed.
Under “Configure DNS” button on Google Domains, I chose “Use custom name servers”. Clicking on “Edit” enabled me to enter the server names that end in “nsone.net”.
In my netlify account page, under “Settings”, I edited “DNS Records” by creating a new record for CNAME. I entered host name: www.fboehm.us
and target: fboehm.us
. I hope that I set it up properly.


Amazon has changed the way Americans shop.
This year, the e-commerce giant said its annual Prime Day sale was “the biggest shopping event in Amazon history.”
The changes introduced by the ecommerce giant are not for everyone positive. The introduction of one-day shipping was immediately followed by an increase in the general pollution of the planet as couriers can no longer allocate resources to ensure efficiency but to speed up delivery in order to meet these tight deadlines.
The Californian University study shows that if the whole world chose 5-day delivery rather than fast delivery it would save 100,000 cubic metres of CO2 per year. That is the equivalent of taking 20000 cars off the road every day.
The peculiarity of this data is the enormous impact it can have on the planet and on us on a daily basis.
If each of us chose a greener shipping method, the whole world would benefit.
The title of the infopoem is intended to highlight the fact that by choosing a quick shipment rather than a 5-day shipment, we are going to influence the amount of breathable air on the planet.
The metaphor concentrates on making the unuser part of the average ecommerce user.
By encouraging them to buy the most commonly purchased goods online, it is possible to try to encourage them to freely choose the shipping method.
Once chosen, he will be notified of the impact on the planet that his choice would have caused if made on a real e-commerce site.
Author: Federico Pozzi
Infopoem for Density Design Final Synthesis Lab
Faculty: Salvatore Zingale


Button Variants
To use a color variant, use .btn-{color}
with .btn
.
Light Button
To use light style button, use .btn-light-{color}
with .btn
.
Outline Button
To use outline button variant, use .btn-outline-{color}
with .btn
.
Rounded Button
To use rounded button variant, apply .btn-rounded
class.
Button With Icon
You can add icon inside button.
Icon Only
You can only use .btn-icon
when you only want icon in your button.


C# - Linq
Instructor: Chris Fulton
Learning Objectives
- What is Linq
- What can you query with Linq?
- What is needed for Linq
What is Linq?
Linq stands for Language Integrated Query. Linq provides methods to easily query data sets including objects, relational databases, XML and other data sources
- Linq can query a variety of data sets that are connected to your application
What can you query?
Arrays, Characters, List of Objects, XML, etc.
Link provides extension methods to IEnumerable
What's Needed for a Linq Query
- The IEnumerable Interface - utilizing properties and methods from Interface
- A dataset/datasource -
"from acct in accounts"
- The formated query -
"where acct.acctBalance > 8000.00"
- The Execution of the query -
"Iterating over data using foreach"


#include <csv_parser.hpp>
Inherited by csv::CSVStat.
|
Lower level functions for more advanced use cases
|
| std::deque< std::vector< std::string > > | records = {} |
| |
|
bool | eof () |
| |
| void | close () |
| |
The main class for parsing CSV files
CSV data can be read in the following ways
- From in-memory strings using feed() and end_feed()
- From CSV files using the multi-threaded read_csv() function
All rows are compared to the column names for length consistency
- By default, rows that are too short or too long are dropped
- Custom behavior can be defined by overriding bad_row_handler in a subclass
◆ CSVReader()
| csv::CSVReader::CSVReader |
( |
std::string |
filename, |
|
|
std::vector< int > |
_subset = {} , |
|
|
CSVFormat |
format = GUESS_CSV |
|
) |
| |
Reads the first 100 rows of a CSV file to infer file information such as column names and delimiting character. After calling this constructor, you can lazily iterate over a file by calling any one of the CSVReader::read_row() functions
- Parameters
-
| [in] | filename | Path to CSV file |
| [in] | format | Format of the CSV file |
| [in] | subset | Indices of columns to keep (default: keep all) |
◆ bad_row_handler()
| void csv::CSVReader::bad_row_handler |
( |
std::vector< std::string > |
record | ) |
|
|
protectedvirtual |
Handler for rejected rows (too short or too long). This does nothing unless strict parsing was set, in which case it throws an eror. Subclasses of CSVReader may easily override this to provide custom behavior.
◆ close()
| void csv::CSVReader::close |
( |
| ) |
|
Close the open file handler
◆ end_feed()
| void csv::CSVReader::end_feed |
( |
| ) |
|
Indicate that there is no more data to receive, and handle the last row
◆ feed()
| void csv::CSVReader::feed |
( |
const std::string & |
in | ) |
|
Parse a CSV-formatted string. Incomplete CSV fragments can be void print_row(const std::vector<std::string>& row);name joined together by calling feed() on them sequentially. Note: end_feed() should be called after the last string
◆ get_format()
| const CSVFormat csv::CSVReader::get_format |
( |
| ) |
const |
Return the format of the original raw CSV
◆ process_newline()
| void csv::CSVReader::process_newline |
( |
std::string::const_iterator & |
in, |
|
|
std::string & |
out |
|
) |
| |
|
protected |
Process a newline character and determine if it is a record separator
◆ process_possible_delim()
| void csv::CSVReader::process_possible_delim |
( |
const std::string::const_iterator & |
in, |
|
|
std::string & |
out |
|
) |
| |
|
protected |
Process a delimiter character and determine if it is a field separator
◆ process_quote()
| void csv::CSVReader::process_quote |
( |
std::string::const_iterator & |
in, |
|
|
std::string::const_iterator & |
begin, |
|
|
std::string & |
out |
|
) |
| |
|
protected |
Determine if the usage of a quote is valid or fix it
◆ read_csv()
| void csv::CSVReader::read_csv |
( |
std::string |
filename, |
|
|
int |
nrows = -1 , |
|
|
bool |
close = true |
|
) |
| |
|
protected |
◆ read_csv_worker()
| void csv::CSVReader::read_csv_worker |
( |
| ) |
|
|
protected |
Worker thread for read_csv() which parses CSV rows (while the main thread pulls data from disk)
◆ read_row() [1/2]
| bool csv::CSVReader::read_row |
( |
std::vector< std::string > & |
row | ) |
|
Retrieve rows in the order in which they were parsed, returning False when the end of file has been reached or no more rows are available.
Return Value
Returns True if more rows are available, False otherwise.
Alternatives
If you want automatic type casting of values, then use CSVReader::read_row(std::vector<CSVField> &row)
- Parameters
-
| [out] | row | A vector of strings where the read row will be stored |
◆ read_row() [2/2]
| bool csv::CSVReader::read_row |
( |
std::vector< CSVField > & |
row | ) |
|
Retrieve rows while performing type-casting on each field. Refer to the documentation for CSVField to see how to work with the output of this function.
- Parameters
-
| [out] | row | A vector of strings where the read row will be stored |
◆ read_row_check()
| bool csv::CSVReader::read_row_check |
( |
| ) |
|
|
protected |
Helper function which pulls more data from file if necessary, and determines when to stop reading
◆ set_col_names()
| void csv::CSVReader::set_col_names |
( |
const std::vector< std::string > & |
col_names | ) |
|
|
protected |
Set or override the CSV's column names
Significance
- When parsing, rows that are shorter or longer than the list of column names get dropped
- These column names are also used when creating CSV/JSON/SQLite3 files
- Parameters
-
| [in] | col_names | Column names |
◆ write_record()
| void csv::CSVReader::write_record |
( |
std::vector< std::string > & |
record | ) |
|
|
protected |
Push the current row into a queue if it is the right length. Drop it otherwise.
◆ parse_to_string
| std::deque<std::vector<std::string> > parse_to_string |
( |
const std::string & |
in, |
|
|
CSVFormat |
format = DEFAULT_CSV |
|
) |
| |
|
friend |
Shorthand function for parsing an in-memory CSV string, returning a deque of string vectors
◆ col_names
| std::vector<std::string> csv::CSVReader::col_names |
|
protected |
◆ correct_rows
| int csv::CSVReader::correct_rows = 0 |
How many correct rows (minus header) have been parsed so far
◆ delimiter
| char csv::CSVReader::delimiter |
|
protected |
◆ feed_buffer
| std::deque<std::string*> csv::CSVReader::feed_buffer |
|
protected |
◆ feed_cond
| std::condition_variable csv::CSVReader::feed_cond |
|
protected |
◆ feed_lock
| std::mutex csv::CSVReader::feed_lock |
|
protected |
Allow only one worker to write
◆ header_row
| int csv::CSVReader::header_row |
|
protected |
Line number of the header row (zero-indexed)
◆ quote_char
| char csv::CSVReader::quote_char |
|
protected |
◆ quote_escape
| bool csv::CSVReader::quote_escape = false |
|
protected |
◆ record_buffer
| std::vector<std::string> csv::CSVReader::record_buffer = { std::string() } |
|
protected |
< Buffer for row being parsed
◆ records
| std::deque<std::vector<std::string> > csv::CSVReader::records = {} |
◆ row_num
| int csv::CSVReader::row_num = 0 |
How many lines have been parsed so far
◆ strict
| bool csv::CSVReader::strict = false |
|
protected |
◆ subset
| std::vector<int> csv::CSVReader::subset |
|
protected |
Indices of columns to subset
◆ subset_flag
| bool csv::CSVReader::subset_flag = false |
|
protected |
Set to true if we need to subset data
The documentation for this class was generated from the following files:


| Australia Labour Force | |||||||||
|
|
|||||||||
| Australia Labour Force - Monthly Change (K) | |||||||||
| Date | For Month | Kshitij Expectation | Market Expectation | Previous | Released | Revised | |||
| 16-Feb-17 | Jan-17 | - | - | 16.34 | 13.50 | 20.56 | |||
| 16-Mar-17 | Feb-17 | - | - | 20.56 | -6.50 | -6.70 | |||
| 13-Apr-17 | Mar-17 | - | 20.30 | -6.70 | 61.00 | - | |||
| 18-May-17 | Apr-17 | - | - | 61.00 | - | - | |||
| Labour Force: Measures the seasonally adjusted change in number of employed people during the previous month. Job creation is an important indicator of economic health because consumer spending, which is highly correlated with labor conditions, makes up a large portion of GDP. | |||||||||
| Copyright: Kshitij Consultancy Services |
| Australia Labour Force | |||||||||
|
|
|||||||||
| Australia Labour Force - Monthly Change (K) | |||||||||
| Date | For Month | Market Expectation | Kshitij Expectation | Previous | Released | Revised | |||
| 14-Dec-17 | Nov-17 | 19.20 | - | 8.40 | 61.70 | 63.60 | |||
| 18-Jan-18 | Dec-17 | 15.20 | - | 63.60 | 34.70 | 31.40 | |||
| 15-Feb-18 | Jan-18 | 15.20 | 19.25 | 31.40 | 16.00 | - | |||
| 22-Mar-18 | Feb-18 | - | 5.04 | 16.00 | - | - | |||
| Labour Force: Measures the seasonally adjusted change in number of employed people during the previous month. Job creation is an important indicator of economic health because consumer spending, which is highly correlated with labor conditions, makes up a large portion of GDP. | |||||||||
| Copyright: Kshitij Consultancy Services |


In this section of the guide, we’ll create a chart and then add a first template. The chart we created here will be used throughout the rest of the guide.
To get going, let’s take a brief look at a Helm chart.
As described in the Charts Guide, Helm charts are structured like this:
mychart/
Chart.yaml
values.yaml
charts/
templates/
...
The templates/
directory is for template files. When Tiller evaluates a chart, it will send all of the files in the templates/
directory through the template rendering engine. Tiller then collects the results of those templates and sends them on to Kubernetes.
The values.yaml
file is also important to templates. This file contains the default values for a chart. These values may be overridden by users during helm install
or helm upgrade
.
The Chart.yaml
file contains a description of the chart. You can access it from within a template. The charts/
directory may contain other charts (which we call subcharts). Later in this guide we will see how those work when it comes to template rendering.
For this guide, we’ll create a simple chart called mychart
, and then we’ll create some templates inside of the chart.
$ helm create mychart
Creating mychart
From here on, we’ll be working in the mychart
directory.
mychart/templates/
If you take a look at the mychart/templates/
directory, you’ll notice a few files already there.
NOTES.txt
: The “help text” for your chart. This will be displayed to your users when they run helm install
.deployment.yaml
: A basic manifest for creating a Kubernetes deploymentservice.yaml
: A basic manifest for creating a service endpoint for your deployment_helpers.tpl
: A place to put template helpers that you can re-use throughout the chartAnd what we’re going to do is… remove them all! That way we can work through our tutorial from scratch. We’ll actually create our own NOTES.txt
and _helpers.tpl
as we go.
$ rm -rf mychart/templates/*.*
When you’re writing production grade charts, having basic versions of these charts can be really useful. So in your day-to-day chart authoring, you probably won’t want to remove them.
The first template we are going to create will be a ConfigMap
. In Kubernetes, a ConfigMap is simply a container for storing configuration data. Other things, like pods, can access the data in a ConfigMap.
Because ConfigMaps are basic resources, they make a great starting point for us.
Let’s begin by creating a file called mychart/templates/configmap.yaml
:
TIP: Template names do not follow a rigid naming pattern. However, we recommend using the suffix .yaml
for YAML files and .tpl
for helpers.
The YAML file above is a bare-bones ConfigMap, having the minimal necessary fields. In virtue of the fact that this file is in the templates/
directory, it will be sent through the template engine.
It is just fine to put a plain YAML file like this in the templates/
directory. When Tiller reads this template, it will simply send it to Kubernetes as-is.
With this simple template, we now have an installable chart. And we can install it like this:
$ helm install ./mychart
NAME: full-coral
LAST DEPLOYED: Tue Nov 1 17:36:01 2016
NAMESPACE: default
STATUS: DEPLOYED
RESOURCES:
==> v1/ConfigMap
NAME DATA AGE
mychart-configmap 1 1m
In the output above, we can see that our ConfigMap was created. Using Helm, we can retrieve the release and see the actual template that was loaded.
$ helm get manifest full-coral
---
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: mychart-configmap
data:
myvalue: "Hello World"
The helm get manifest
command takes a release name (full-coral
) and prints out all of the Kubernetes resources that were uploaded to the server. Each file begins with ---
to indicate the start of a YAML document, and then is followed by an automatically generated comment line that tells us what template file generated this YAML document.
From there on, we can see that the YAML data is exactly what we put in our configmap.yaml
file.
Now we can delete our release: helm delete full-coral
.
Hard-coding the name:
into a resource is usually considered to be bad practice. Names should be unique to a release. So we might want to generate a name field by inserting the release name.
TIP: The name:
field is limited to 63 characters because of limitations to the DNS system. For that reason, release names are limited to 53 characters. Kubernetes 1.3 and earlier limited to only 24 characters (thus 14 character names).
Let’s alter configmap.yaml
accordingly.
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ .Release.Name }}-configmap
data:
myvalue: "Hello World"
The big change comes in the value of the name:
field, which is now {{ .Release.Name }}-configmap
.
A template directive is enclosed in
{{
and}}
blocks.
The template directive {{ .Release.Name }}
injects the release name into the template. The values that are passed into a template can be thought of as namespaced objects, where a dot (.
) separates each namespaced element.
The leading dot before Release
indicates that we start with the top-most namespace for this scope (we’ll talk about scope in a bit). So we could read .Release.Name
as “start at the top namespace, find the Release
object, then look inside of it for an object called Name
”.
The Release
object is one of the built-in objects for Helm, and we’ll cover it in more depth later. But for now, it is sufficient to say that this will display the release name that Tiller assigns to our release.
Now when we install our resource, we’ll immediately see the result of using this template directive:
$ helm install ./mychart
NAME: clunky-serval
LAST DEPLOYED: Tue Nov 1 17:45:37 2016
NAMESPACE: default
STATUS: DEPLOYED
RESOURCES:
==> v1/ConfigMap
NAME DATA AGE
clunky-serval-configmap 1 1m
Note that in the RESOURCES
section, the name we see there is clunky-serval-configmap
instead of mychart-configmap
.
You can run helm get manifest clunky-serval
to see the entire generated YAML.
At this point, we’ve seen templates at their most basic: YAML files that have template directives embedded in {{
and }}
. In the next part, we’ll take a deeper look into templates. But before moving on, there’s one quick trick that can make building templates faster: When you want to test the template rendering, but not actually install anything, you can use helm install --debug --dry-run ./mychart
. This will send the chart to the Tiller server, which will render the templates. But instead of installing the chart, it will return the rendered template to you so you can see the output:
$ helm install --debug --dry-run ./mychart
SERVER: "localhost:44134"
CHART PATH: /Users/mattbutcher/Code/Go/src/k8s.io/helm/_scratch/mychart
NAME: goodly-guppy
TARGET NAMESPACE: default
CHART: mychart 0.1.0
MANIFEST:
---
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: goodly-guppy-configmap
data:
myvalue: "Hello World"
Using --dry-run
will make it easier to test your code, but it won’t ensure that Kubernetes itself will accept the templates you generate. It’s best not to assume that your chart will install just because --dry-run
works.
In the next few sections, we’ll take the basic chart we defined here and explore the Helm template language in detail. And we’ll get started with built-in objects.