Python——AttributeError: module ‘time‘ has no attribute ‘clock‘

在python3.8下运行如下代码

import time
a = []
t0 = time.clock()
for i in range(1,1000):
    a.append(i)
print(time.clock() - t0, "seconds process time")

报错：

1.错误信息：AttributeError: module ‘time’ has no attribute ‘clock’。
2.错误分析：在python3.8中，time模块下不支持clock，改成time.perf_counter()即可解决错误。
3.修改如下：

import time
a = []
t0 = time.perf_counter()
for i in range(1,1000):
    a.append(i)
print(time.perf_counter() - t0, "seconds process time")

运行结果：