Documenting a Function in Python: DOCSTRING in Python - Python Tutorial for Beginners
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🖥️ Documenting your Code in Python: Docstring in Python
Although optional, documentation is a good programming practice - especially if you want to get your dreamed job at Google, Apple, Facebook or anywhere in the World! Plus, unless you can remember what you had for dinner last week, always documenting your code will help you a lot when you will need to stay away for a while, then come back.
You can attach documentation in Python to a function definition by including a string literal called docstring, just after the function header. It is briefly used to explain what a function does.
○ What is a Docstring in Python?
A docstring is a string literal that occurs as the first statement in a module, function, class, or method definition. Such a docstring becomes the _doc_ special attribute of that object.
Note: Docstrings in Python are usually triple quoted, to allow for multi-line descriptions.
○ Documenting your Code in Python: Docstrings in Python
def hello():
"""This function prints
message on the screen"""
print('Hello, World!')
○ Print Function Help (Rich format)
To print a function’s documentation, use the Python help() function and pass the function’s name as parameter.
help(hello)
Help on function hello in module __main__:
hello()
This function prints
message on the screen
○ Print Function Help (RAW format)
You can also access the docstring in Python through _doc_ attribute of the function.
print(hello.__doc__)
OUTPUT: This function prints message on the screen
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