Jake Lishman • 11/12/2022

Mutating Python tuples by C FFI abuse

This technical article details a method to bypass Python's tuple immutability by using the ctypes module and CPython's C-level object structure. It explains the PyObject memory layout, accesses the internal `ob_item` array via pointer manipulation, and provides a Python function that manually adjusts reference counts to swap tuple elements.

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#Python #memory management #Ctypes