Tox issues with Python 3.6 and 3.7

[Hamish McIntyre-Bhatty]

On 20/01/2022 14:56, Hamish McIntyre-Bhatty wrote:
> Hi there,
> 
> This is a follow-up to Marco Atzeri and I talking about tox in the 
> Python 3.9 email thread. I have just started trying to use tox for 
> testing python-imaging.
> 
> I have found that tox has some issues on Python 3.6 and 3.7, namely that:
> 
> 3.6:
> 
> typing-extensions (on PyPI) is required for tox to run (I installed with 
> pip3.6). This is not available in the Cygwin repositories.
> 
> Then, platformdirs is needed. This is available in the Cygwin 
> repositories but not for 3.6.
> 
> I then decided not to bother supporting 3.6 seeing as it is EOL now anyway.
> 
> 3.7:
> 
> As above typing-extensions is required, which I installed with pip3.7.
> 
> Tox then says it can't find the "interpreter for Builtin discover of 
> python_spec='python3.7m'"
> 
> It also seems to be trying to build Pillow again inside a virtualenv, 
> but doesn't find jpeg headers/libraries, which are installed.
> 
> Marco, I assume you didn't have these problems when you tested, or you 
> found a way to fix them. Having never used tox before, I'm at a bit of a 
> loss, any ideas?
> 
> Hamish
> 
> 
*Bump* as it seems this slipped past everyone's radar.

Hamish