Copy and Paste not working

Pretty self explanatory. I tried to copy and paste a piece of python code into the box, and it lets me copy, but when i try pasting, it wont work.
Any ideas?


Ctrl-C, Ctrl-X and Ctrl-V do work.
Maybe you try to copy and paste only with the mouse (Unix-like)?

click “Settings” at the left and make sure, that you use the classic editor (not emacs or vim).