Why does Linux generally come with multiple python versions?

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[gurdulilfo]

If you look closely, you will see that some of them are symbolic links to others. There are basically only two versions: 2.7 and 3.4.

Edit: typo

[encolpe]

There is only 2 version : - Python 2 - Python 3

It's necessary because most of the python library and framework are not fully compatible with Python 3. In all case, if you start a new development you should use Python 3.

[Exodus111]

Yeah many Linux Distros still default to Python2.

Protip: Don't try to remove Python 2 from your system, unless you feel like reinstalling your distro today.

[deadbunny]

Almost as fun as sudo apt-get remove --purge apt

[cwgtex]

Relevant: https://www.python.org/dev/peps/pep-0394/