What are the different file opening modes in Python, and how do they work?

I am learning file handling in Python and want to understand the different file opening modes available. I know Python provides modes like “r”, “w”, and “a”, but I am unsure when to use each one.

I would like to learn:

The difference between read (“r”) and write (“w”) modes.

How append mode (“a”) works and when it is useful.

The purpose of “x” mode and how it prevents overwriting.

How to work with binary files using “rb”, “wb”, and “ab”.

When to use text mode (“t”) vs. binary mode (“b”).

Best practices for opening and closing files to prevent data loss.

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原文链接：What are the different file opening modes in Python, and how do they work?