[Bug 1626258] Re: [SRU] AttributeError: 'Requirement' object has no attribute 'project_name'

[Martin Pitt]

Hello Felipe, or anyone else affected,

Accepted python-pip into xenial-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/python-
pip/8.1.1-2ubuntu0.3 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!

** Changed in: python-pip (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1626258

Title:
  [SRU] AttributeError: 'Requirement' object has no attribute
  'project_name'

Status in python-pip package in Ubuntu:
  Invalid
Status in python-pip source package in Xenial:
  Fix Committed

Bug description:
  [impact]

  pip 8.1.1 (xenial) tries to access properties that were dropped from
  the Requirement class and when pip's code tries to access
  Requirement.project_name fails, this was fixed in 8.1.2.

  Any user trying to install a package that triggers the
  pkg_resources.VersionConflict exception during will get the error
  "AttributeError: 'Requirement' object has no attribute 'project_name'"

  [Test Case]

  # wget https://pypi.python.org/packages/49/6f/183063f01aae1e025cf0130772b55848750a2f3a89bfa11b385b35d7329d/requests-2.10.0.tar.gz
  # wget https://pypi.python.org/packages/2e/ad/e627446492cc374c284e82381215dcd9a0a87c4f6e90e9789afefe6da0ad/requests-2.11.1.tar.gz
  # pip install requests-2.10.0.tar.gz
  # pip install requests-2.11.1.tar.gz

  Expected result:

  pip installs requests 2.11.1

  Actual result:

  pip fails with the following exception

  root at pip-x:/home/ubuntu# pip install requests-2.11.1.tar.gz
  Processing ./requests-2.11.1.tar.gz
  Exception:
  Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 209, in main
      status = self.run(options, args)
    File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 328, in run
      wb.build(autobuilding=True)
    File "/usr/lib/python2.7/dist-packages/pip/wheel.py", line 748, in build
      self.requirement_set.prepare_files(self.finder)
    File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 360, in prepare_files
      ignore_dependencies=self.ignore_dependencies))
    File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 600, in _prepare_file
      req_to_install.check_if_exists()
    File "/usr/lib/python2.7/dist-packages/pip/req/req_install.py", line 1011, in check_if_exists
      self.req.project_name
  AttributeError: 'Requirement' object has no attribute 'project_name'
  You are using pip version 8.1.1, however version 8.1.2 is available.
  You should consider upgrading via the 'pip install --upgrade pip' command.

  [Regression Potential]

  * None, this change is already part of 8.1.2, and most of the change
  is already part of the ubuntu package, there is just one last place
  where the code is accessing Requirement.project_name

  [Other info]

  From 8e236dd6a09bd2f70f9d4fc886da8c354d4c58f2 Mon Sep 17 00:00:00 2001
  From: Donald Stufft <donald at stufft.io>
  Date: Wed, 11 Nov 2015 18:51:46 -0500
  Subject: [PATCH] Update to use the Requirement class from packaging
  https://github.com/pypa/pip/commit/8e236dd6a09bd2f70f9d4fc886da8c354d4c58f2

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