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In Python, comments are lines in your code that are not executed by the interpreter. They are used to add explanatory notes or remarks to the code, making it more readable and easier to understand for both yourself and other programmers. Comments are ignored during the execution of the program and are meant for human readers. Python supports two types of comments:
- Single-line Comments: Single-line comments start with the hash symbol (#) and extend until the end of the line. Anything written after the hash symbol on the same line will be treated as a comment and not executed by the interpreter.
Example:
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# This is a single-line comment print("Hello, World!") # This is another comment after a statement
- Multi-line Comments (Docstrings): Multi-line comments, also known as docstrings, are used to document functions, classes, or modules. Docstrings are enclosed in triple quotes (''' or """) and can span multiple lines. They are typically used to provide detailed documentation and descriptions of what a function or class does.
Example:
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''' This is a multi-line comment or docstring. It provides documentation for the following function. ''' def greet(name): """This function greets the person with the given name.""" print("Hello, " + name) # Calling the function greet("Alice")
Docstrings have a special significance in Python and can be accessed using the built-in
__doc__
attribute of functions, classes, or modules.It's good practice to use comments generously in your code to explain complex logic, provide context, or make notes for future reference. Well-documented code is easier to maintain and collaborate on, especially in larger projects or when working with a team of developers.
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