Comments in Python are lines in the code that are ignored by the Python interpreter during the execution of the program. They are used to explain the code, make it more readable, and prevent execution when testing code.
There are three types of comments in Python:
Single-Line Comments: Single-line comments in Python start with the hashtag symbol (#). Python will ignore the rest of the line after the #. They are useful for supplying short explanations for variables, function declarations, and expressions.
Python single-line comment example
# This is a single-line comment
print("Hello, World!") # This is a comment at the end of a line
Output
Hello, World!
Multi-Line Comments: Python does not have a specific syntax for multi-line comments. However, you can insert a # for each line to create a multi-line comment.
python multi-line comment example
# This is a comment
# written in
# more than just one line
print("Hello, World!")
Output
Hello, World!
String Literals: Python will ignore string literals that are not assigned to a variable. Therefore, you can use a multi-line string (triple quotes) in your code and place your comment inside it.
Python string literals comment - alternate for multi-line
"""
This is a comment
written in more than just one line
"""
print("Hello, World!")
Output
Hello, World!
As long as the string is not assigned to a variable, Python will read the code but then ignore it, and you have made a multi-line comment.
Comments enhance the readability of the code and help programmers understand the code carefully. They also help in collaborating with other developers as adding comments makes it easier to explain the code.
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