EnvLog does not respect passenv/setenv

[connyay]

Hello!

This will likely be a crappy bug report because I don't have an isolated repro. Sorry 😞

Working with tox in a pretty strange environment that basically uses relocatable python installations in specific directories. Noticed on centos boxes an environment could not be created due to the .so not being loaded properly.

Tracked it down to venc.setupenv on this line. Noticed that EnvLog. set_python_info has no concept of the configuration's passenv or setenv so the LD_LIBRARY_PATH does not get set.

Couldn't quickly grok a fix for this. action.popen looks promising? but not sure the implications.

Let me know if I can provide any further info.

[gaborbernat]

Feel free to open a PR against master and fix it. My available efforts at the moment are aimed at fixing this as part of #1394, but that probably will take a while (ETA September).

[gaborbernat]

This issue has now been avoided in the rewrite branch.