Insert "indent" regardless of mode

Question

When typing docstring in python-mode, I always have issue with indentation. If I am at this point (| is the cursor):

def fn():
   """ 
   Args:|"""

If I press Enter, the cursor will move right below the A, and if I press TAB, the cursor will circle between the beginning of the line and right below A, while I want it indented:

def fn():
   """ 
   Args:
       |"""

Currently, I am just pressing SPACE 4-times (I am using 4-spaces indent) after pressing ENTER, but I would like to know if there is a shortcut in emacs to forcefully insert an indentation (4 spaces) regardless of the mode?

I found out that M-RIGHT inserts 4 spaces but when at the beginning of the line, it inserts 4 spaces without moving the cursor, which is pretty annoying.

Answer 1

C-u space should insert 4 spaces at point.

Beyond this: python-mode.el provides a command py-edit-docstring. This opens the docstring in an own buffer. Which permits to run other text-modes while editing.

python-mode.el is available from Melpa.