A need to use bit-wise operations in Python can be due to translations or dealings with `C`, `C++` or `Java`, system libraries, raw binary data, or cryptographic algorithms. Existing Python modules hooking into system `C` libraries for cryptographic functions or math all to avoid the need to implement bit-shifting on a Python level. Bit-shifting can have unexpected outcomes. Python's ctypes module allows integration of `C` based system libraries into Python and direct access to C-type variables that can have different behavior than using high-level Python.
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