On Thu, 19 Aug 2010 19:10:19 +0200 (CEST) victor.stinner <python-checkins@python.org> wrote:

Author: victor.stinner Date: Thu Aug 19 19:10:18 2010 New Revision: 84204

Log: Fix os.get_exec_path() (code and tests) for python -bb

Catch BytesWarning exceptions.

You should not catch warnings, but silence them using constructs provided by the warnings module: with warnings.catch_warnings(): warnings.simplefilter(ignore, BytesWarning) # the rest of your code Otherwise you'll get buggy behaviour where e.g. env[b'PATH'] raises BytesWarning because of an unicode key, but it would have succeeded otherwise. Regards Antoine.