- are there strange effects e.g. when v1 has pkg.this but v2 has removed pkg.this and then `impory pkg.this` still succeeds?

parent: pip install pkg==1.0
child: pip install pkg==2.0
child: python -c "import pkg.this"


On Tue, Oct 20, 2020, 2:24 PM Matthias Bussonnier <bussonniermatthias@gmail.com> wrote:
Hello Python Ideas,

Would there be any interest in upstreaming a patch allowing virtualenv to be inherited in core python ? 
I'm working with a company that uses such an internal patch and would be ok with me spending some time trying to upstream it.

When creating a venv, this let you point to "parents" venvs that will be used to search for existing packages; thus potentially making the creation of large venvs with a common base faster, and decreasing disk space usage.

I am aware that there are solution around like, https://virtualenvwrapper.readthedocs.io/en/latest/command_ref.html#add2virtualenv, or modifying PYTHONPATH , but my question is more about whether such a change has a chance of being accepted in Core Python; and whether there is a need for a pep,, or simply a request for enhancement on bpo and a pull-request.

Thanks,
--
Matthias
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