Comment out a Python code block

 

This question already has an answer here:

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

    • Python does not have such a mechanism. Prepend a # to each line to block comment. For more information see PEP 8. Most Python IDEs support a mechanism to do the block-commenting-with-pound-signs automatically for you. For example, in IDLE on my machine, it's Alt+3 and Alt+4.

    Don't use triple-quotes; as you discovered, this is for documentation strings not block comments, although it has a similar effect. If you're just commenting things out temporarily, this is fine as a temporary measure.

    The only cure I know for this is a good editor. Sorry.

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

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

    or: 

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