Switch to Python 3.x in Spyder

Question

By default Spyder uses Python 2.7.2, and my question is: is there a way to set up Spyder so that it automatically uses Python 3.x? Thanks!

Answer 1

At the time this question was asked, Python 3 was not supported by Spyder (and this answer said so, giving some details of the then-incomplete porting efforts).

But that's not the case any longer! Recent builds of Spyder should work with Python 3. Check out the other answers for some links to places to get it from (though they may be out of date themselves by this point).

Answer 2

Since end of May 2013, version v2.3.0dev1 of Spyder works for Python 3.3 and above.
It is in a usable state but there are a few minor problems. Hopefully they will be resolved soon.

Answer 3

To use Spyder for Python 3, you just need v2.3.0 or later.

Ubuntu 12.10 and later

You can get this by using pip3.

sudo apt-get install python3-pip python3-pyqt4
sudo pip3 install spyder

Ubuntu 12.04

Ubuntu 12.04 doesn't have python3-pip in the repositories, but you can get it with setuptools,

sudo apt-get install python3-pyqt4 python3-setuptools
sudo easy_install3 pip
sudo pip3 install spyder

you can then open Spyder from the launcher (after logging out and in) or from the terminal by typing spyder3.

Answer 4

Ubuntu 16.04

Garrett's solution did not work for me. Pip is installed, but running the "install spyder" command does not install spyder using Python3.5. I uninstalled spyder.

What worked was simply:

sudo apt-get install spyder3

This will also automatically install any Python 3.x dependencies.

Answer 5

On Ubuntu 14.04 I found spyder3 at official repository

Answer 6

Another alternative: Use Anaconda to manage your scientific software.
There is an installer specifically for Python 3.5 https://www.continuum.io/downloads