PEP440 warning

[koiker]

When installing another package that requires aws4auth the package the log output shows:

Searching for requests-aws4auth>=0.9.0
Reading https://pypi.python.org/simple/requests-aws4auth/
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.8)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.5)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.7)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.9)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.4)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'requests (aws4auth-0.6)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
  PEP440Warning,
Best match: requests-aws4auth 0.9
Downloading https://pypi.python.org/packages/72/97/ec440cf78418a62ed8351424dfb6590525e8f95cf634cb35e0075f8d3706/requests-aws4auth-0.9.tar.gz#md5=572b55f37149610c7de0a19eaac51599
Processing requests-aws4auth-0.9.tar.gz
Writing /tmp/easy_install-juBBPo/requests-aws4auth-0.9/setup.cfg
Running requests-aws4auth-0.9/setup.py -q bdist_egg --dist-dir /tmp/easy_install-juBBPo/requests-aws4auth-0.9/egg-dist-tmp-RKKO9w
zip_safe flag not set; analyzing archive contents...
requests_aws4auth.six: module references __path__
creating /usr/local/lib/python2.7/site-packages/requests_aws4auth-0.9-py2.7.egg
Extracting requests_aws4auth-0.9-py2.7.egg to /usr/local/lib/python2.7/site-packages
Adding requests-aws4auth 0.9 to easy-install.pth file

Installed /usr/local/lib/python2.7/site-packages/requests_aws4auth-0.9-py2.7.egg