Arch Linux

Description:

$ virtualenv --version
virtualenv 20.0.15 from /usr/lib/python3.8/site-packages/virtualenv/__init__.py

$ virtualenv
Traceback (most recent call last):
File "/usr/bin/virtualenv", line 6, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3259, in <module>
def _initialize_master_working_set():
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3242, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3271, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 584, in _build_master
ws.require(__requires__)
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 901, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 787, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'distlib<1,>=0.3.0' distribution was not found and is required by virtualenv

Steps to reproduce:

$ virtualenv

Resolved by installing python-distlib

Related to https://bugs.archlinux.org/task/66299