4. Advanced PythonIV. Performance And Optimization33. Speeding Up with CythonOn this page33. Speeding Up with Cython Cython compiles Python code to C for faster performance. Example # example.pyxdef add(int a, int b): return a + b Compile with: cythonize -i example.pyx Wrap-Up Cython is useful for CPU-bound code needing C-level speed.