How to change python version in anaconda spyder

Solution 1:

You can open the preferences (multiple options):

• keyboard shortcut Ctrl + Alt + Shift + P
• Tools -> Preferences

And depending on the Spyder version you can change the interpreter in the Python interpreter section (Spyder 3.x):

or in the advanced Console section (Spyder 2.x):

Solution 2:

First, you have to run below codes in Anaconda prompt,

conda create -n py27 python=2.7  #for version 2.7
activate py27

conda create -n py36 python=3.6  #for version 3.6
activate py36

Then, you have to open Anaconda navigator and, The button might say "install" instead of Launch. After the installation, which takes a few moments, It will be ready to launch.

Thank you, @cloudscomputes and @Francisco Camargo.

Solution 3:

If you want to keep python 3, you can follow these directions to create a python 2.7 environment, called py27.

Then you just need to activate py27:

$ conda activate py27

Then you can install spyder on this environment, e.g.:

$ conda install spyder

Then you can start spyder from the command line or navigate to 2.7 version of spyder.exe below the envs directory (e.g. C:\ProgramData\Anaconda3\envs\py27\Scripts)