Tanguy LE CARROUR <tanguy@bioneland.org> skriver:

> I've tried to modify `python-virtualenv` to make it use our current
> version of `python-distlib`. Poetry builds, but it does not work
> properly!
>
> ```
> $ poetry install
> Creating virtualenv test-4avGy1Vc-py3.8 in /home/tanguy/.cache/pypoetry/virtualenvs
>
>   ImportError
>
>   cannot import name 'enquote_executable' from 'distlib.scripts'
>   (/gnu/store/2j3qn0ksry1qarwih9knh1ngr6zm2rci-python-distlib-0.3.0/lib/python3.8/site-packages/distlib/scripts.py)
> ```
>
> So I guess the version of distlib does matter and we cannot do without.

To get these patches on 'master' without rebuilding the world, you can
create a new 'python-distlib' like so:

  ;; TODO: Merge with 'python-distlib' on the next rebuild cycle.
  (define-public python-distlib/next
    (package
      (inherit python-distlib)
      (version "1.2.3")
      (source (origin ...))))

...and in the packages that require the new version, refer to
'python-distlib/next' instead of 'python-distlib'.

Does that make sense?