More generally, any setuptools package that uses entry_points scripts as per https://wiki.archlinux.org/index.php/Python_package_guidelines#setuptools

Thanks for noticing this.

After the update I got problems to create a virtual environment.

$ virtualenv2 venv
Traceback (most recent call last):
File "/usr/bin/virtualenv2", line 6, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

Is this problem related?
Is there any workaround to handle this issue until the next release?
Thanks in advance.

Yes, this is exactly the problem. You can install python2-setuptools by hand since the error is that it wasn't automatically installed...

Even when I have python-setuptools installed I got the very same error:

virtualenv2 venv
Traceback (most recent call last):
File "/usr/bin/virtualenv2", line 6, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

Any clue?

There is both a python-setuptools and a python2-setuptools package. Which one exactly did you install? You probably need the python2 version since you seem to be using virtualenv2?

Yeah, that should be python2-setuptools, sorry. But I did kind of hope that that sort of thing would be obvious, since python-setuptools is self-evidently meant for Python 3, and python2-setuptools is self-evidently meant for Python 2.

It did the trick, thanks.