On 10/21/23 07:01, Larry Martell via Python-list wrote:
I have a python script, and from that I want to run another script in
a subprocess in a venv. What is the best way to do that? I could write
a file that activates the venv then runs the script, then run that
file, but that seems messy. Is there a better way?
You don't need to "activate" a virtualenv. The activation script does
some helpful things along the way (setup and cleanup) but none of them
are required. The most important thing it does is basically:
VIRTUAL_ENV='path-where-you-put-the-virtualenv'
export VIRTUAL_ENV
_OLD_VIRTUAL_PATH="$PATH"
PATH="$VIRTUAL_ENV/bin:$PATH"
export PATH
and that's really only so that commands that belong to that virtualenv
(python, pip, and things where you installed a package in the venv wich
creates an "executable" in bin/) are in a directory first in your search
path. As long as you deal with necessary paths yourself, you're fine
without activating. So as mentioned elsewhere, just use the path to the
virtualenv's Python and you're good to go.
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