Arch Linux

Description:

This package needs python2-distlib at runtime.

Additional info:
* 20.0.15-1
* https://github.com/pypa/virtualenv/blob/master/setup.cfg#L43

Steps to reproduce:

Sorry, I'm not sure what markup syntax if any is supported here.

```console
$ sudo pacman -S --noconfirm python2-virtualenv
$ virtualenv2 --help
Traceback (most recent call last):
File "/bin/virtualenv2", line 6, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3251, in <module>
@_call_aside
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3235, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3264, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 583, in _build_master
ws.require(__requires__)
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 900, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 786, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'distlib<1,>=0.3.0' distribution was not found and is required by virtualenv
$ sudo pacman -S --asdeps --noconfirm python2-distlib
$ virtualenv2 --help
usage: virtualenv [--version] [--with-traceback] [-v | -q] ...
```