BLD/TST: correct pytz version for tox

[Komnomnomnom]

Tox fails to build pandas without a specific version of pytz.

[cpcloud]

hm wonder if this should be reported to upstream pytz? i seem to remember this working without a version at some point...

[Komnomnomnom]

Was failing for me, could be related to #4210?

[cpcloud]

ah forgot about that...i don't follow pip dev, maybe i should

[Komnomnomnom]

FYI here's the error I get for attempting a clean build with tox without a version for pytz.

It actually looks like tox is using pip 1.4 regardless of what version the local env is using (I've got pip 1.2 in the virtualenv I'm using).

Downloading/unpacking pytz
  Could not find a version that satisfies the requirement pytz (from versions: 2009r, 2008b, 2009f, 2008c, 2007g, 2011g, 2005m, 2011e, 2007f, 2011k, 2007k, 2006j, 2008h, 2008i, 2011e, 2008a, 2009e, 2006g, 2011j, 2010l, 2005m, 2008i, 2005k, 2008g, 2007c, 2007i, 2009l, 2009r, 2006j, 2011k, 2007d, 2006p, 2009i, 2009u, 2007i, 2009f, 2010g, 2008h, 2009a, 2007g, 2011e, 2006p, 2012b, 2010k, 2005r, 2007f, 2009l, 2009p, 2008c, 2009j, 2008g, 2010g, 2010h, 2011h, 2010k, 2007c, 2007d, 2011d, 2009l, 2011c, 2008a, 2005m, 2007k, 2009n, 2011d, 2010o, 2013b, 2012h, 2010e, 2012c, 2012d, 2012f, 2011n, 2011b, 2011j, 2008c, 2012j, 2007k, 2009f, 2009d, 2010e, 2010b, 2013b, 2011d, 2009p, 2008h, 2005r, 2009i, 2009n, 2009a, 2010k, 2008g, 2006g, 2008b, 2012c, 2009i, 2007g, 2012c, 2010h, 2011n, 2012g, 2007d, 2008a, 2009u, 2012g, 2010o, 2006p, 2010b, 2009u, 2012d, 2011k, 2012f, 2009a, 2007f, 2011h, 2010l, 2009j, 2011g, 2009g, 2009g, 2005r, 2011c, 2012g, 2009g, 2012d, 2009j, 2010o, 2007c, 2010g, 2006g, 2009d, 2010h, 2005k, 2006j, 2010b, 2009n, 2011g, 2011c, 2012b, 2009e, 2009d, 2011j, 2007i, 2012j, 2010l, 2009r, 2012h, 2010e, 2009p, 2008i, 2012f, 2009e, 2012b, 2011h, 2005k, 2008b, 2013b, 2011n, 2012j, 2004b)
No distributions matching the version for pytz

(py27)kieran@smallbang ~/work/git/pandas $ pip --version
pip 1.2.1 from /home/kieran/work/pyenv/py27/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg (python 2.7)
(py27)kieran@smallbang ~/work/git/pandas $ .tox/py27/bin/pip --version
pip 1.4 from /home/kieran/work/git/pandas/.tox/py27/lib/python2.7/site-packages (python 2.7)

[cpcloud]

yep i get that too i just remember the 2012 pytz versions working w/o this...

[Komnomnomnom]

Also I'm using the latest tox

(py27)kieran@smallbang ~/work/git/pandas $ tox --version
1.5.0 imported from /home/kieran/work/pyenv/py27/lib/python2.7/site-packages/tox/__init__.pyc

[cpcloud]

i also am really 👎 on this not removing of build directories when i try to update my env packages

[cpcloud]

thanks @Komnomnomnom