In this Python tutorial, we will learn about Comments, different types of comments that we can write in Python, and how to write comments in a program with examples.

Python – Comments

Python Comments are used to make a Python program readable or understandable to other people or for the one who writes the program.

In Python, a comment can span a single line or multiple lines. Based on the number of lines a comment spans, there are two types of comments.

  • Single Line Comments
  • Multiple Line Comments

Single Line Comments

A single line starts with hash symbol #. Anything after # in that line is considered a comment and ignored by Python interpreter.

‘#’ inside a string literal is not considered as a comment.

An example for single line comment is shown in the following example.

Example.py

a = 5
b = 6

# this is a comment
if a * b == 30: # this is also a comment # second hash doesn't do anything
    print('# This is not a comment as # is inside the string literal')
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Note : An empty String literal which is alone and contained in a line could work as a single line comment. But this is not a good practice.

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Multiple Line Comment

We can use triple single quotes or triple double quotes for writing a multiple line comment in Python.

'''<comment>''' : multiple line comment enclosed between triple single quotes.

"""<comment>""" : multiple line comment enclosed between triple double quotes.

In the following program, we write multiple line comment using triple single quotes, and triple double quotes.

Example.py

'''this is a comment
this is continuation of the comment
this comment has multiple lines'''

"""this is another way of expressing
multiple line comments"""
print("thank you")
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Conclusion

In this Python Tutorial, we learned how to write single line comments and multiple line comments in Python.