[Python-projects] pylint version 0.16.0 doesn't complain about uninitialized variable

[Aurélien Campéas]

Le Thursday 05 March 2009 10:07:23 Dotan Barak, vous avez écrit :
> Hi.
>
> I have the following function in my code:
>
> <--snip start-->
> import os
> import shutil
>
> def clear_temp_folder(temp_path):
>     """ Remove old temporary folder if exists."""
>
>     if os.path.exists(temp_path):
>         try:
>             shutil.rmtree(temp_path)
>             rc = 0
>         except OSError:
>             rc = 1
>         if rc:
>             print "Error, failed to remove old temporary path %s" %
> temp_path return rc
>
>     return rc
> <--snip end-->
>
>
> From doing code review by eye, i found out that the variable rc can be
> returned without any initialization,
> but the pylint could not find it.

rc is either set in the try or in the except block
hence you don't risk a NameError

(such blocks do not create new variable scope in Python)

>
> Thanks
> Dotan
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