compare_for_map_comprehension_vectorize.py

import numpy as np
import timeit

def f(x, y):
    return (x+1)*y

def ff(X, y):
    res = []
    for x in X:
        res.append(f(x,y))
    return res

def mf(X, y):
    return list(map(lambda x: f(x,y), X))

def cf(X, y):
    return [f(x,y) for x in X]

vf = np.vectorize(f)

X = [i for i in range(10000)]
y = 12345

print(timeit.timeit('ff(X,y)', globals=globals(), number=1000))
print(timeit.timeit('mf(X,y)', globals=globals(), number=1000))
print(timeit.timeit('cf(X,y)', globals=globals(), number=1000))
print(timeit.timeit('vf(X,y)', globals=globals(), number=1000))

results

$ ~/Desktop/compare_for_map_comprehension_vectorize.py
2.7477957619994413
2.872335820000444
2.09746183900279
3.430644760002906

The process was too simple?