[docs] [issue35450] venv module doesn't create a copy of python binary by default

[Brett Cannon]

Change by Brett Cannon <brett at python.org>:


----------
stage:  -> needs patch
versions: +Python 3.5, Python 3.6, Python 3.8

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35450>
_______________________________________