Ironic-specs: tox -edocs doesn't work with Python3

[Lucas Alvares Gomes]

The tox -edocs command from the openstack/ironic-specs project does not work with Python 3. This is because the command depends on a a library called "feedformatter" which only supports Python 2 for now [0]

Logs:

Collecting feedformatter (from yasfb>=0.5.1->-r /home/lucas/Projects/ironic-specs/requirements.txt (line 6))
  Using cached feedformatter-0.4.tar.bz2
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-eef3mor0/feedformatter/setup.py", line 3, in <module>
        from feedformatter import __version__ as version
      File "/tmp/pip-build-eef3mor0/feedformatter/feedformatter.py", line 77
        (("pubDate", "pubdate", "date", "published", "updated"), "pubDate", lambda(x): _format_datetime("rss2",x)),
                                                                                  ^
    SyntaxError: invalid syntax

Full logs: http://paste.openstack.org/show/601151/

[0] https://pypi.python.org/pypi/feedformatter/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/440604
Committed: https://git.openstack.org/cgit/openstack/ironic-specs/commit/?id=9666454132d66fdcf916b8c578fae138a6b2aefe
Submitter: Jenkins
Branch: master

commit 9666454132d66fdcf916b8c578fae138a6b2aefe
Author: Lucas Alvares Gomes <email address hidden>
Date: Thu Mar 2 14:48:08 2017 +0000

    Pin the python version for tox -edocs

    The tox -edocs command do not work with Python3 becauseethe command
    depends on a library called "feedformatter" which only supports Python
    2 for now.

    Partial-Bug: #1669466
    Change-Id: Ie087df8843fee228325e88f20b248d96a88862a1

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/441141

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/441141
Committed: https://git.openstack.org/cgit/openstack/ironic-inspector-specs/commit/?id=2c937330a86d8f29dcd2723de00d6c6f79aea9db
Submitter: Jenkins
Branch: master

commit 2c937330a86d8f29dcd2723de00d6c6f79aea9db
Author: dparalen <email address hidden>
Date: Fri Mar 3 15:04:34 2017 +0100

    tox -edocs doesn't work with Python3

    Implementing the same pinning of python version as in the ironic specs
    patch #440604:

    The tox -edocs command does not work with Python3 because the command
    depends on a library called "feedformatter" which only supports Python
    2 for now.

    Change-Id: I703b4a3a4df8c3ceb23adb09632ae5171e6f997e
    Closes-Bug: 1669466