all Python 3Byte sequencesfunction

bytearray.reverse

bytearray — mutating

Reverse the bytes in place, modifying the bytearray itself; returns None.

Syntax

ba.reverse(...)

It reverses in place and returns None, so ba = ba.reverse() silently replaces your data with None — call it as a standalone statement. When you need a reversed copy and want the original intact, use the slice ba[::-1] instead.

Examples

ba = bytearray(b'abc')
ba.reverse()
print(ba)   # → bytearray(b'cba')

See also

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