python3 and python2 compatibility choices
118892
Why is Python 3 not backwards compatible?
149016
Is it feasible to compile Python to machine code?
32535
What IDE to use for Python?
18385
How do Rpy2, pyrserve and PypeR compare?
64964
Is Python interpreted, or compiled, or both?
27793
How do I install the latest Python 2.7.X or 3.X on Ubuntu?
59994
Version number comparison in Python
76409
Setting python3.2 as default instead of python2.7 on Mac OSX Lion 10.7.5
33616
pip is not included in Python3
61833
How can I check for Python version in a program that uses new language features?
85946
Upgrading Python
28349
Is it worth using Python's re.compile?
66809
Change the Python3 default version in Ubuntu
71433
Python: What OS am I running on?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
114299
How to install pip for python 3 in ubuntu 12.04 LTS
28649
Why is Python 2.7 still the default Python version in Ubuntu?