How to install python3 version of package via pip on Ubuntu?

Question

I have both python2.7 and python3.2 installed in Ubuntu 12.04.
The symbolic link python links to python2.7

Answer 1

Although the question relates to Ubuntu, let me contribute by saying that I'm on Mac and my python command defaults to Python 2.7.5. I have Python 3 as well, accessible via python3, so knowing the pip package origin, I just downloaded it and issued sudo python3 setup.py install against it and, surely enough, only Python 3 has now this module inside its site packages. Hope this helps a wandering Mac-stranger.

Answer 2

I had the same problem while trying to install pylab, and I have found this link

So what I have done to install pylab within Python 3 is:

python3 -m pip install SomePackage

It has worked properly, and as you can see in the link you can do this for every Python version you have, so I guess this solves your problem.

Answer 3

You can alternatively just run pip3 install packagename instead of pip,

Answer 4

If you have pip installed in both pythons, and both are in your path, just use:

$ pip-2.7 install PACKAGENAME
$ pip-3.2 install PACKAGENAME

References:

• http://www.pip-installer.org/docs/pip/en/0.8.3/news.html#id4
• https://github.com/pypa/pip/issues/200

This is a duplicate of question #2812520

Answer 5

Execute the pip binary directly.

First locate the version of PIP you want.

jon-mint python3.3 # whereis ip
ip: /bin/ip /sbin/ip /usr/share/man/man8/ip.8.gz /usr/share/man/man7/ip.7.gz

Then execute.

jon-mint python3.3 # pip3.3 install pexpect
Downloading/unpacking pexpect
  Downloading pexpect-3.2.tar.gz (131kB): 131kB downloaded
  Running setup.py (path:/tmp/pip_build_root/pexpect/setup.py) egg_info for package pexpect

Installing collected packages: pexpect
  Running setup.py install for pexpect

Successfully installed pexpect
Cleaning up...

Answer 6

Ubuntu 12.10+ and Fedora 13+ have a package called python3-pip which will install pip-3.2 (or pip-3.3, pip-3.4 or pip3 for newer versions) without needing this jumping through hoops.

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I came across this and fixed this without needing the likes of wget or virtualenvs (assuming Ubuntu 12.04):

1. Install package python3-setuptools: run sudo aptitude install python3-setuptools, this will give you the command easy_install3.
2. Install pip using Python 3's setuptools: run sudo easy_install3 pip, this will give you the command pip-3.2 like kev's solution.
3. Install your PyPI packages: run sudo pip-3.2 install <package> (installing python packages into your base system requires root, of course).
4. …
5. Profit!