python %time code example

Example 1: python time a funciton

import time

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

Example 2: python clock

# Here is a self updating clock function, just run it and it'll self update itself until you hit CTRL-C
import datetime
import time
def clock():
    while True:
        print(datetime.datetime.now().strftime("%H:%M:%S"), end="\r")
        time.sleep(1)

clock()

Example 3: time.strftime

from datetime import datetime

timestamp = 1528797322
date_time = datetime.fromtimestamp(timestamp)

print("Date time object:", date_time)

d = date_time.strftime("%m/%d/%Y, %H:%M:%S")
print("Output 2:", d)	

d = date_time.strftime("%d %b, %Y")
print("Output 3:", d)

d = date_time.strftime("%d %B, %Y")
print("Output 4:", d)

d = date_time.strftime("%I%p")
print("Output 5:", d)

Example 4: python time library

#also see datetime
import time
now = time.time()
print(now)

Example 5: time module in python

import time
seconds = time.time()
print("Seconds since epoch =", seconds)

Example 6: time a function python

Proper answer to timing a loop over a function multiple times
import timeit
timeit.timeit('func_to_time()',globals=globals(),number=1000)