Pandas 0.14 broke Python 2.6 support

[jd]

Since today I've the following issue when importing Pandas on Python 2.6

2014-05-30 15:14:29.999 |   File "gnocchi/carbonara.py", line 22, in <module>
2014-05-30 15:14:29.999 |     import pandas
2014-05-30 15:14:29.999 |   File "/home/jenkins/workspace/gate-gnocchi-python26/.tox/py26/lib/python2.6/site-packages/pandas/__init__.py", line 45, in <module>
2014-05-30 15:14:30.000 |     from pandas.io.api import *
2014-05-30 15:14:30.000 |   File "/home/jenkins/workspace/gate-gnocchi-python26/.tox/py26/lib/python2.6/site-packages/pandas/io/api.py", line 7, in <module>
2014-05-30 15:14:30.000 |     from pandas.io.excel import ExcelFile, ExcelWriter, read_excel
2014-05-30 15:14:30.000 |   File "/home/jenkins/workspace/gate-gnocchi-python26/.tox/py26/lib/python2.6/site-packages/pandas/io/excel.py", line 626, in <module>
2014-05-30 15:14:30.000 |     .format(openpyxl_compat.start_ver, openpyxl_compat.stop_ver))
2014-05-30 15:14:30.000 | ValueError: zero length field name in format

[jreback]

hmm, very odd, can you show pd.show_versions()

[cpcloud]

i got this i see the problem

[jreback]

gr8!

[jreback]

hmm..very odd as travis passes just fine with an older version of openpyxl

[jreback]

cc @neirbowj

[cpcloud]

it's because it's just a warning and maybe tests don't cover on the one it runs

[cpcloud]

actually all versions running on travis are >= 1.6.2 so the warning won't be triggered.. should i put on 2.6 req file?

[jreback]

yes, change that to 2.0.3 so it will trigger the warning (and fail)

[cpcloud]

cool

[jreback]

@jd in the mean time if you downgrade openpyxl to < version 2 this would work I believe
>= 2.0 in openpyxl is backward incompatible so in 0.14.0 we provide this warning (which unfortunately was not tested with the newest version on 2.6), oversite.