Below is a not-very-efficient implementation of an integral function: def f(x): return ... The new “pure Python” syntax for Cython uses Python’s own syntax—decorators, type annotations ...

Want faster number-crunching in Python ... specify the types for the function. The JIT decorator lets you do this: from numba import jit, int32 @jit(int32(int32)) def plusone(x): return x+1 ...

Improve your Python testing even more ... In pytest, you define fixtures using a combination of the pytest.fixture decorator, along with a function definition. For example, say you have a file that ...