How to remove tab indent from several lines in IDLE?

Question

If you want to indent several lines in Python IDLE you just mark the lines and hit Tab. But what if you want to remove the indent from several lines? Shift+Tab does not work for

Answer 1

In Jupyter Notebook,

 SHIFT+ TAB(to move left) and TAB(to move right) movement is perfectly working.

Answer 2

If you're using IDLE, and the Norwegian keyboard makes Ctrl-[ a problem, you can change the key.

1. Go Options->Configure IDLE.
2. Click the Keys tab.
3. If necessary, click Save as New Custom Key Set.
4. With your custom key set, find "dedent-region" in the list.
5. Click Get New Keys for Selection.
6. etc

I tried putting in shift-Tab and that worked nicely.