[Python-modules-team] Bug#912379: /usr/bin/pip3: TypeError on "list --outdated": uses different Version implementations

[Ben Wiederhake]

Package: python3-pip
Version: 9.0.1-2.3
Severity: normal
File: /usr/bin/pip3

Dear Maintainer,

I'm having trouble running this command:

    pip3 list --outdated

Expected behavior: A list of outdated, local packages
Actual behavior: TypeError

Full error message:

    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 215, in
main
        status = self.run(options, args)
      File "/usr/lib/python3/dist-packages/pip/commands/list.py", line 157, in
run
        packages = self.get_outdated(packages, options)
      File "/usr/lib/python3/dist-packages/pip/commands/list.py", line 168, in
get_outdated
        dist for dist in self.iter_packages_latest_infos(packages, options)
      File "/usr/lib/python3/dist-packages/pip/commands/list.py", line 169, in
<listcomp>
        if dist.latest_version > dist.parsed_version
    TypeError: '>' not supported between instances of 'Version' and 'Version'

This is not Debian #878082.

Arch had a similar problem, there it was a packaging error:

https://github.com/pypa/pip/issues/5429

Could it be that the Debian package has a similar issue?

Cheers,
Ben



-- System Information:
Debian Release: buster/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'stable-updates'), (500, 'stable-debug'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-pip depends on:
ii  ca-certificates    20170717
ii  python-pip-whl     9.0.1-2.3
ii  python3            3.6.6-1
ii  python3-distutils  3.6.6-1

Versions of packages python3-pip recommends:
ii  build-essential     12.5
ii  python3-dev         3.6.6-1
ii  python3-setuptools  40.2.0-1
ii  python3-wheel       0.30.0-0.2

python3-pip suggests no packages.

-- no debconf information