Multi-line comments(comments block) are used for description of large text of code or comment out chunks of code at the time of debugging application.
Does Python Support Multi-line Comments(like c/c++…)?
Actually in many online tutorial and website you will find that multiline_comments are available in python(“”” or ”’). but let’s first look at what python creator, “Guido van Rossum” said about fake block commenting style :
Python tip: You can use multi-line strings as multi-line comments. Unless used as docstring, they generate no code!.
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- if writing a text in a single line then use double quotes or single quotes in python.
- if writing a poem or songs or multi-line text then to use triple quotes(“”” or ”’).
- if printing these lines or text then simply insert it in print() function.
Example:
Python3
# Write Python3 code here#this is only valid for single line "this is a text constant for single line you""can't use multi-line within single or double quotes"'this is also text-constant for single line' #this is valid for multiline."""this is text constant for multior single line this will notgive any error""" #you can also print both look at below..print('this is also text-constant for single line')print("""this is text constant for mult-lineor single line this will notgive any error""") |
The above technique does not create true comments. It simply inserts Text constant that does not change anything or say that this is a regular single line string somewhere in your code. Always keep in mind to indent the first ( “”” or ”’ ) match correctly, otherwise a SyntaxError is generated.
Example:
Python3
# Write Python3 code heredef check_syntax(): """ look at your first ident below"""print("after this line interpreter gives error because your first ident doesnot match") """ <---- here first ident starts with 2nd column hence gives indentation error you must remember that your first ident must be correctly matched.""" |
How we comment out chunks of code easily?
Simply select those lines(it means when to copy the text then first select those lines) and then press (cntrl+#) otherwise consecutive # in every lines is the only way.
Summary:
- Unlike other programming languages (c, c++, …) “python” does not support multi-line comment blocks out of the box
- One can consider triple quote “”” as multi-line comments but this is not a good idea because this type of comments lines may turn into accidental docstrings.
- consecutive # is the only way to comments lines in python(if you want to comment more than one lines then you can select those lines and press (ctrl+#) in python3.
