Redundant features in python library, PyQt
Python's standard library has (to take three examples) threads, processes, and datetime functions. Meanwhile, PyQt has QThread, QProcess, and QDateTime.
Does this redundancy exist for C++ programmers who are programming Qt directly, and who may lack a standard C++ library with these features? Are the Python wrappers simply provided for completeness, or do these libraries truly function differently? When writing a PyQt application, how does one choose between the standard library and the PyQt library?