# coding:utf-8

import matplotlib.pyplot as plt

import numpy as np

from sklearn.cluster import KMeans

def km():

    return KMeans(n_clusters=4)

def fib(n):

    if n<2:

        return 1

    else:

        return fib(n-1)+fib(n-2)

def plots():

    x  = np.linspace(-2,2,30)

    y = np.sin(x)

    plt.plot(x,y)

    plt.show()

from distutils.core import setup

from distutils.extension import Extension

from Cython.Distutils import build_ext

setup(

    cmdclass={'build_ext': build_ext},

    ext_modules=[Extension("myfib", ["fib.pyx"])]

)

# coding=utf-8

# 把python代码编译成动态文件

# python fib_setup.py build_ext --inplace

import myfib

import time

t = time.time()

myfib.fib(37)

print(time.time() - t)

print(myfib.km())