[Python-Dev] PYTHON3PATH (original) (raw)

Jared Grubb jared.grubb at gmail.com
Wed Jan 13 23:56:37 CET 2010

On 13 Jan 2010, at 13:43, Nick Coghlan 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.

I raised a question about these PYTHON3* variables once before in a discussion about shebang lines: http://www.mailinglistarchive.com/python-dev@python.org/msg29500.html

I'm not advocating them, but just wanted to make sure to bring up the shebang use case.

Jared

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