Drop python 2.6 support

[rbeuque74]

Hello, Following this last failing build on Python 2.6 (https://travis-ci.org/ovh/python-ovh/jobs/452406500) regarding SNI requirements on ca.api.soyoustart.com and ca.api.kimsufi.com, I recommand that we drop Python 2.6 support on python-ovh.

Python 2.6 is no longer supported by the Python core team, and pip will also drop support for Python 2.6 too, I think we should consider to move on.

Any objection ?

[VincentCasse]

I approve this change. Python 2.6 will die also if EU APIs are migrated on infra that handle SNI...

[hugovk]

Here's the pip installs for ovh from PyPI for last month:

category	percent	downloads
3.5	39.91%	2,803
2.7	29.54%	2,075
3.6	24.36%	1,711
3.7	2.99%	210
null	1.69%	119
3.4	1.51%	106
Total		7,024

Source: pypistats python_minor --last-month ovh

You could also drop 3.2 and 3.3, which are also EOL and no longer receiving security updates (or any updates) from the core Python team.

Version	Release date	Supported until
2.5	2006-09-19	2011-05-26
2.6	2008-10-01	2013-10-29
3.0	2008-12-03	2009-06-27
3.1	2009-06-27	2012-04-09
3.2	2011-02-20	2016-02-27
3.3	2012-09-29	2017-09-29

Source: https://en.wikipedia.org/wiki/CPython#Version_history

[rbeuque74]

You could also drop 3.2 and 3.3, which are also EOL and no longer receiving security updates (or any updates) from the core Python team.

Thanks for all the data provided. @geoffreybauduin any thoughts ?

[geoffreybauduin]

@rbeuque74 all good let's drop the support