Comments are a way to document your code and make it easier for others (or yourself) to understand. In Python, you can add a comment by using the “#” symbol. Anything after the “#” symbol on the same line will be treated as a comment and ignored by the interpreter.
For example:
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# This is a comment x = 5 # This is also a comment # This is a # multi-line comment |
You can use comments to explain what your code is doing, or to leave notes for yourself or others who might be reading the code. It’s a good idea to use comments liberally in your code, as this can make it easier to understand and maintain.
Here is an example of how comments can be used to document a simple Python program:
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# This program calculates the area of a rectangle # Define the length and width of the rectangle length = 10 width = 5 # Calculate the area of the rectangle area = length * width # Print the result print(area) # Outputs 50 |
As you can see, the comments in this example help to explain what the code is doing and make it easier to understand.
Multi-line Comments
Multi-line comments are often used to include longer explanations or examples in your code. To create a multi-line comment, you can use a triple-quote string (“””). The triple-quote string can span multiple lines and will be treated as a single comment. For example:
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""" This is a multi-line comment that can span multiple lines. """ |
It’s a good idea to use comments in your code to make it easier to understand and maintain. However, it’s important not to overdo it, as excessive commenting can make your code harder to read. Aim for a balance between too little and too much commenting.
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