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how to comment python code


Commenting code in Python is a good practice as it helps make your code more understandable for yourself and others read it later. Here's how you can comment your Python code effectively: ### 1. Single-Line Comments You can create a single-line comment by using the `#` symbol. Everything after the `#` on that line will be treated as a comment and ignored by the Python interpreter. ```python # This is a single-line comment x = 5 # This is also a comment ``` ### 2. Multi-Line Comments Although Python does not have a specific syntax for multi-line comments, you can use consecutive single-line comments or use triple quotes (`'''` or `"""`). #### Using Consecutive Single-Line Comments: ```python # This is a multi-line comment # It is made up of several # single-line comments ``` #### Using Triple Quotes: Triple quotes can be used for multi-line string literals, but they can also serve as multi-line comments. ```python """ This is a multi-line comment using triple quotes. It can span multiple lines. """ ``` Note: Triple quotes are typically used for docstrings, which serve as documentation for modules, classes, and functions. ### 3. Docstrings For documenting modules, functions, classes, or methods, use triple quotes to create a docstring. This is a special type of comment that can be accessed via the `__doc__` attribute and is useful for documentation. ```python def my_function(): """ This is a docstring for my_function. It describes what the function does. """ return "Hello, World!" ``` ### Best Practices - Keep comments clear, concise, and relevant. - Avoid obvious comments that don't add value, like `# increment x by 1`. - Update comments when you change the code to prevent them from becoming misleading. - Use comments to explain why something is done, not just what is being done. By following these guidelines, you'll help ensure that your code is understandable and maintainable.