natesilva

### See http://j.mp/ffN320

$ cat /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=9.10
DISTRIB_CODENAME=karmic
DISTRIB_DESCRIPTION="Ubuntu 9.10"
$ mkdir mydir
$ cd mydir
$ touch test.h test.cpp

natesilva

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' WinUnit - Maria Blees (maria.blees@microsoft.com)
'
' [ With modifications by Nate Silva to fix "Current function is not a WinUnit
' test (BEGIN_TEST)" - see http://goo.gl/Znfb ]
'
' This module contains macros for running tests.
'
' In order to use these, make sure that the variable
' WinUnitPath in the _Variables module is set to where

natesilva

# Example showing how Python default argument handling causes a bug
# when using the ReportLab library for Python. Tested against
# ReportLab 2.3.
#
# See http://gist.github.com/246507 for a generic Python example.

from reportlab.platypus import *


def main():

natesilva

# Example showing how a subtlety in the way Python handles default
# arguments can cause a bug.

class C(object):
    def __init__(self, list1=[], list2=None):
        # Wrong: if the list1 default argument of [] is used, that
        # default will be *shared* among all instances of the class.
        # If it is later modified, other instances can unexpectedly
        # inherit the modifications.
        self.list1 = list1