[Python-Dev] PYTHON3PATH

Guido van Rossum guido at python.org
Wed Jan 13 23:45:57 CET 2010

On Wed, Jan 13, 2010 at 1:43 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:
> Guido van Rossum wrote:
>> On Wed, Jan 13, 2010 at 9:57 AM, ssteinerX at gmail.com > Or, how about
>> just removing the antiquated use of environment variables altogether
>> from Python 3 and avoid the issue completely.
>> -1. They have their use, but more in controlled situations. If you
>> have "global" env vars that you only want to use with Python 2.x,
>> write a wrapper for Python 3 that invokes it with -E.
> Perhaps a case can be made for Python 3 to assume -E by default, with a
> -e option to enable reading of the environment variables?
> That way naive users could run Python3 without tripping over existing
> Python2 environment variables, while other tools could readily set up a
> different environment before launching Python3.

Naive users using environment variables? That's a recipe for disaster
in any version! :-)

--Guido van Rossum (python.org/~guido)

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