Import py problem

[DCnTop]

Context: running on CircleCI, linux Docker image circleci/python:3.8.5
Trying to run as subprocesses with the following command: pytest -d --tx 2*popen//python=python3.8
This is a good image, when pytest runs without xdist we run tests, collect coverage, and so on.

Can someone explain this:

============================= test session starts ==============================
platform linux -- Python 3.8.5, pytest-6.2.5, py-1.11.0, pluggy-1.0.0
rootdir: /home/circleci/repo
plugins: Faker-11.3.0, forked-1.4.0, cov-3.0.0, xdist-2.5.0
gw0 I / gw1 Igw0 C / gw1 Igw0 C / gw1 C[gw0] node down: Traceback (most recent call last):
File "", line 1084, in executetask
File "/home/circleci/repo/venv/lib/python3.8/site-packages/xdist/remote.py", line 13, in
import py
ModuleNotFoundError: No module named 'py'

[DCnTop]

Sorry I should have put this in Issues, somehow didn't pay attention