In order to use Spyder for writing Sage scripts you have to use the version of Python which comes with Sage within the IDE. To change it apply the following steps:
In 'Tools -> Preferences' go to 'Console -> Advanced settings -> Python executable'
- choose SAGE_ROOT/local/bin/sage-python as the interpreter
go to 'Run -> Configure (F6)'
choose 'Console -> Execute in a new dedicated Python console'
- optional: check 'Interact with the Python console after execution' (convenient for debugging)
Now you can run your scripts with 'Run (F5)' in Spyder's built-in console.
Tested with Spyder 2.3.8 and Sage 7.1.
- only works if the extension is .py
- no integration of the Sage class/function documentation