No way to install pip for Python 3.4 in 15.10 Wily

[Harry P]

Related to this bug: https://bugs.launchpad.net/ubuntu/+source/python3.4/+bug/1290847

It looks like 15.10 uses a mixture of Python 3.4 and 3.5 (hopefully that's temporary?). Pip, the python package manager, is available from "python-pip" for Python 2.7, and "python3-pip" for Python 3.5, however, there is no python3.4-pip, and because of the weird state of Python in debian/ubuntu, there's no way to use "ensurepip" to get it either.

One fix would be to just ship a complete version of python/python3.4/python3.5, including pip, as part of the base package, if there's any appetite for revisiting the historical decision to unbundle python...

[Matthias Kerk (tuxlife)]

root@f762c15dc931:/# dpkg -l python3 python3.4 python3.5 python3-pip
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=============================================================-===================================-===================================-================================================================================================================================
ii python3 3.4.3-4ubuntu1 amd64 interactive high-level object-oriented language (default python3 version)
ii python3-pip 1.5.6-7ubuntu1 all alternative Python package installer - Python 3 version of the package
ii python3.4 3.4.3-9ubuntu1 amd64 Interactive high-level object-oriented language (version 3.4)
ii python3.5 3.5.0-3 amd64 Interactive high-level object-oriented language (version 3.5)
root@f762c15dc931:/# python3 --version
Python 3.4.3+
root@f762c15dc931:/# pip --version
pip 7.1.2 from /usr/local/lib/python3.5/dist-packages (python 3.5)
root@f762c15dc931:/# pip3 --version
pip 7.1.2 from /usr/local/lib/python3.5/dist-packages (python 3.5)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Hồng Quân (ng-hong-quan)]

I make python3.5 default for python3, by this command:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 10

[tomdryer (tomdryer-com)]

One workaround is to use this installer:
https://bootstrap.pypa.io/get-pip.py is a workaround until this gets fixed.

[Ian Krase (ikrase)]

There seems to be some broader wierdness w/r/t what calls python3 and what calls python3.5.