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How to Fix struct.error: unpack requires a buffer of 4 bytes in Python

The "struct.error: unpack requires a buffer of 4 bytes" error in Python arises when you're trying to unpack data using the `struct` module, but the buffer you're providing isn't the size expected based on the format string you've specified. This usually happens when the buffer is too short. The error message "4 bytes" is an example and the number of bytes may be different. To fix this, carefully examine your format string (e.g., 'i', 'f', 'L') and ensure the buffer passed to `struct.unpack()` has enough bytes to satisfy the specified data types. Double-check the length of the buffer you're providing and compare it with what `struct.calcsize()` returns for your format string. If reading from a file or network socket, verify that you're reading enough bytes before attempting to unpack. Ensure that the buffer's length matches the total size implied by your format string.

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