'pip3 list' throws AssertionError

Status changed to 'Confirmed' because the bug affects multiple users.

I do not have python-pip3 installed.

But I get this bug using "pip list":
$ pip list
adium-theme-ubuntu (0.3.4)
[.... long list ...]
Pyste (0.9.10)
Exception:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 80, in run
    self.run_listing(options)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 142, in run_listing
    self.output_package_listing(installed_packages)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 151, in output_package_listing
    if dist_is_editable(dist):
  File "/usr/lib/python2.7/dist-packages/pip/util.py", line 367, in dist_is_editable
    req = FrozenRequirement.from_dist(dist, [])
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 299, in from_dist
    assert len(specs) == 1 and specs[0][0] == '=='
AssertionError

A work-around would be great...

Same thing for me with Ubuntu Gnome 15.04

Same think with pip for Python 2.7. The pip version installed by default is almost 6 major versions behind the latest pip version.

from a fresh install (I'm using docker image ubuntu:15.04 but other 15.04 installs should reproduce it too):

apt-get update
apt-get install -y python-pip python-apt

pip freeze

Removing the ubuntu package and installing pip via its official installer, as suggested here https://github.com/pypa/pip/issues/1093#issuecomment-103127883, is an adequate workaround.

The attachment "wily debian patch" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

This was fixed in xenial, so marking Fix Released. Will open a wily task for the SRU.

Thanks for the patch, Liang Chen! I've uploaded it to wily, so I'll subscribe the sru team.

Hello Max, or anyone else affected,

Accepted python-pip into wily-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/python-pip/1.5.6-7ubuntu1.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

The proposed package (1.5.6-7ubuntu1.2) works well for me.

This bug was fixed in the package python-pip - 1.5.6-7ubuntu1.2

---------------
python-pip (1.5.6-7ubuntu1.2) wily; urgency=medium

  * fix legacy version format support (LP: #1445947):
    - d/p/fix_legacy_version_format_support.patch

 -- Liang Chen <email address hidden> Mon, 11 Apr 2016 23:54:29 -0400

The verification of the Stable Release Update for python-pip has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

trusty also need the fix

Status changed to 'Confirmed' because the bug affects multiple users.

Hello Max, or anyone else affected,

Accepted python-pip into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/python-pip/1.5.4-1ubuntu4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

The package python-pip 1.5.4-1ubuntu4 is tested and it fixes the issue.

This bug was fixed in the package python-pip - 1.5.4-1ubuntu4

---------------
python-pip (1.5.4-1ubuntu4) trusty-proposed; urgency=medium

  * fix legacy resion format support (LP: #1445947):
    - d/p/fix_legacy_version_format_support.patch

 -- Liang Chen <email address hidden> Mon, 27 Jun 2016 10:40:48 -0700