Hope there is a simple solution to this....essentially when I try and open the Python Interpreter in ArcMap (10.3) (button shown below), it fails to open. Indeed nothing happens. There are no problems when I select the Python Interpreter ArcCatalog (10.3 as well).
Has anyone had this issue? I'm kicking myself thinking its probably appearing off screen or something stupid. But I can't find a solution.
Not the end of the world but it would be useful to be able to utilise it