python time performance code example

Example 1: python time code

import time

t0 = time.time()
code_block
t1 = time.time()

total = t1-t0

Example 2: time it python

import time

start = time.time()
print("hello")
end = time.time()
print(end - start)

Example 3: how to use timeit in python 3

import timeit
import_module = "import random"
testcode = ''' 
def test(): 
    return random.randint(10, 100)
'''
print(timeit.repeat(stmt=testcode, setup=import_module))

Example 4: python system performance

import os
import psutil
pid = os.getpid()
py = psutil.Process(pid)
memoryUse = py.memory_info()[0]/2.**30  # memory use in GB...I think
print('memory use:', memoryUse)