Can you show me some examples of good docstrings in Python?
Sure! A good docstring should clearly describe the purpose of a function, its parameters, and its return value. For example:
def add(a: int, b: int) -> int:
"""
Add two integers and return the result.
Parameters:
a (int): The first integer.
b (int): The second integer.
Returns:
int: The sum of a and b.
"""
return a + b
What should I include in a docstring?
In a docstring, you should include a brief description of the function, its parameters, return values, and any exceptions it might raise. It's also helpful to provide examples of usage.
Can you give me another example?
Absolutely! Here's another example:
def fetch_data(url: str) -> dict:
"""
Fetch data from a given URL and return it as a dictionary.
Parameters:
url (str): The URL to fetch data from.
Returns:
dict: The data retrieved from the URL.
"""
# Implementation goes here
How long should a docstring be?
A docstring should be concise yet informative. Aim for a few sentences that cover the essential information without being overly verbose.
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