How to comment out a block of code in Python [dupl

Question

This question already has an answer here:

• Why doesn't Python have multiline comments? 16 answers

Is there a mechanism to comment out large blocks of Python code?

Right now, the only ways I can see of commenting out code are to either start every line with a #, or to enclose the code in triple quotes: """.

The problem with these is that inserting # before every line is cumbersome and """ makes the string I want to use as a comment show up in generated documentation.

After reading all comments, the answer seems to be "No".

Answer 1

In vi:

• Go to top of block and mark it with letter a.
• Go to bottom of block and mark it with letter b

Then do

:'a,'b s!^!#!

Answer 2

On Eric4 there is an easy way: select a block, type Ctrl+M to comment the whole block or Ctrl+alt+M to uncomment.

Answer 3

In Eclipse using PyDev, you can select a code block and press Ctrl + #.

Answer 4

Hide the triple quotes in a context that won't be mistaken for a docstring, eg:

'''
...statements...
''' and None

or:

if False: '''
...statements...
'''

Answer 5

M-x comment-region, in Emacs' Python mode.

Answer 6

comm='''
Junk, or working code 
that I need to comment.
'''

You can replace comm by a variable of your choice that is perhaps shorter, easy to touch-type, and you know does not (and will not) occur in your programs. Examples: xxx, oo, null, nil.