Cliff doesn't install anymore on Python3.2

[Alessandro Molina]

This raised on TurboGears continuous integration due to a failed build while installing CLIFF: https://travis-ci.org/TurboGears/tg2devtools/jobs/19061738

I'm also able to replicate the issue locally on a clear Py32 environment:

(py32)amol@LPulsar:~/venv$ pip install cliff
Downloading/unpacking cliff
  Downloading cliff-1.5.2.tar.gz (54kB): 54kB downloaded
  Running setup.py egg_info for package cliff
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/home/amol/venv/py32/build/cliff/setup.py", line 14, in <module>
        pbr=True)
      File "/usr/lib/python3.2/distutils/core.py", line 109, in setup
        _setup_distribution = dist = klass(attrs)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 221, in __init__
        self.fetch_build_eggs(attrs.pop('setup_requires'))
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 245, in fetch_build_eggs
        parse_requirements(requires), installer=self.fetch_build_egg
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 580, in resolve
        dist = best[req.key] = env.best_match(req, self, installer)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 826, in best_match
        return self.obtain(req, installer) # try and download/install
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 838, in obtain
        return installer(requirement)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 294, in fetch_build_egg
        return cmd.easy_install(req)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 598, in easy_install
        return self.install_item(spec, dist.location, tmpdir, deps)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 628, in install_item
        dists = self.install_eggs(spec, download, tmpdir)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 823, in install_eggs
        return self.build_and_install(setup_script, setup_base)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 1103, in build_and_install
        self.run_setup(setup_script, setup_base, args)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 1089, in run_setup
        run_setup(setup_script, args)
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 31, in run_setup
        lambda: exec(compile(open(
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 79, in run
        return func()
      File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 34, in <lambda>
        {'__file__':setup_script, '__name__':'__main__'})
      File "setup.py", line 19, in <module>

    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/home/amol/venv/py32/build/cliff/setup.py", line 14, in <module>

    pbr=True)

  File "/usr/lib/python3.2/distutils/core.py", line 109, in setup

    _setup_distribution = dist = klass(attrs)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 221, in __init__

    self.fetch_build_eggs(attrs.pop('setup_requires'))

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 245, in fetch_build_eggs

    parse_requirements(requires), installer=self.fetch_build_egg

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 580, in resolve

    dist = best[req.key] = env.best_match(req, self, installer)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 826, in best_match

    return self.obtain(req, installer) # try and download/install

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 838, in obtain

    return installer(requirement)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/dist.py", line 294, in fetch_build_egg

    return cmd.easy_install(req)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 598, in easy_install

    return self.install_item(spec, dist.location, tmpdir, deps)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 628, in install_item

    dists = self.install_eggs(spec, download, tmpdir)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 823, in install_eggs

    return self.build_and_install(setup_script, setup_base)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 1103, in build_and_install

    self.run_setup(setup_script, setup_base, args)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/command/easy_install.py", line 1089, in run_setup

    run_setup(setup_script, args)

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 31, in run_setup

    lambda: exec(compile(open(

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 79, in run

    return func()

  File "/home/amol/venv/py32/lib/python3.2/site-packages/distribute-0.6.28-py3.2.egg/setuptools/sandbox.py", line 34, in <lambda>

    {'__file__':setup_script, '__name__':'__main__'})

  File "setup.py", line 19, in <module>

[Alessandro Molina (alessandro-molina)]

Seems related to PBR-0.6, when using PBR 0.5.21 it works correctly.

Cliff doesn't enforce any PBR version, but it clearly states that Python3.2 is supported: https://pypi.python.org/pypi/cliff/1.5.2
This is not true anymore as PBR >= 0.6 don't support python 3.2 anymore.

[Doug Hellmann (doug-hellmann)]

It looks like the problem is a unicode literal in pbr:

$ pip install pbr
Downloading/unpacking pbr
  Using download cache from /Users/dhellmann/Library/Caches/pip-downloads/https%3A%2F%2Fpypi.python.org%2Fpackages%2Fsource%2Fp%2Fpbr%2Fpbr-0.6.tar.gz
  Running setup.py egg_info for package pbr
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/Users/dhellmann/Envs/tmp-6c866c0d07db1713/build/pbr/setup.py", line 19, in <module>
        from pbr import util
      File "pbr/util.py", line 81, in <module>
        import pbr.hooks
      File "pbr/hooks/__init__.py", line 18, in <module>
        from pbr.hooks import backwards
      File "pbr/hooks/backwards.py", line 19, in <module>
        from pbr import packaging
      File "pbr/packaging.py", line 273
        changelog_file.write(u"CHANGES\n=======\n\n")
                                                   ^
    SyntaxError: invalid syntax
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/Users/dhellmann/Envs/tmp-6c866c0d07db1713/build/pbr/setup.py", line 19, in <module>

    from pbr import util

  File "pbr/util.py", line 81, in <module>

    import pbr.hooks

  File "pbr/hooks/__init__.py", line 18, in <module>

    from pbr.hooks import backwards

  File "pbr/hooks/backwards.py", line 19, in <module>

    from pbr import packaging

  File "pbr/packaging.py", line 273

    changelog_file.write(u"CHANGES\n=======\n\n")

                                               ^

SyntaxError: invalid syntax

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /Users/dhellmann/Envs/tmp-6c866c0d07db1713/build/pbr
Storing complete log in /Users/dhellmann/.pip/pip.log

[Doug Hellmann (doug-hellmann)]

See https://review.openstack.org/#/c/73946/