def get_imds_data ( node json = True ) :
    "str"
    if not node :
        return None
    separator = "str" if node [ 0 ] == "str" else "str"
    imds_url = "str" . format (
        separator , node , "str" if json else "str" )
    imds_headers = { "str" : "str" }
    req = urllib2 . Request ( url = imds_url , headers = imds_headers )
    resp = urllib2 . urlopen ( req )
    data = resp . read ( )
    data_str = data . decode ( "str" )
    return data_str

def get_imds_data ( node , json = True ) :
    "str"
    if not node :
        return None
    separator = "str" if node [ 0 ] == "str" else "str"
    imds_url = "str" . format (
        separator , node , "str" if json else "str" )
    imds_headers = { "str" : "str" }
    req = urllib2 . Request ( url = imds_url , headers = imds_headers )
    resp = urllib2 . urlopen ( req )
    data = resp . read ( )
    data_str = data . decode ( "str" )
    return data_str

次に示すpythonコードの誤りを修正しなさい。