This sounds exactly like what people used to do with eggs. You could have multiple versions of a package on the path as eggs and then require a version at runtime. The approach has problems. Ruby also abandoned a strategy where random app code depends on package management code at runtime.
One better strategy is to set up a python path in a wrapper script. On Fri, May 17, 2019, 11:27 Brett Cannon <bcan...@gmail.com> wrote: > Thanks for the idea but there are currently no plans to support such a > feature. If you would like to see it then you will need to write a PEP with > a proof-of-concept to demonstrate how you would expect such a feature to > work. > > On Fri., May 17, 2019, 07:55 Q via Python-Dev, <python-dev@python.org> > wrote: > >> A lot of the Python code we use in production are used directly as >> imports in other python >> distributions (such as the python comes with the finite element software >> Abaqus and MSC Marc), many >> packages (such as matplotlib, numpy) that may have varying versioned >> dependencies. >> >> I was wondering if this could be expanded to allow a version to be set >> within a package and have >> that propagate to all modules in that package. For example in the root >> init.py if I set >> multiversion(tornado, 2.2.1) then all modules in that package will use >> tornado 2.2.1 when I import >> tornado. >> >> See a relevant issue on github: >> https://github.com/mitsuhiko/multiversion/issues/1 >> >> Thank you! >> Qiang >> >> _______________________________________________ >> Python-Dev mailing list >> Python-Dev@python.org >> https://mail.python.org/mailman/listinfo/python-dev >> Unsubscribe: >> https://mail.python.org/mailman/options/python-dev/brett%40python.org >> > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/dholth%40gmail.com >
_______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
