datetime

import time,timeit


def power(limit):
    return [x**2 for x in range(limit)]




def measure_runtime(func):
    start = time.time()
    func()
    end = time.time()
    print(end - start) # number of seconds since 1970



measure_runtime(lambda :power(5000000)) # lamda function allows us to pass an argument


## another way


print(timeit.timeit('[x**2 for x in range(10)]')) # it runs it many times many times
print(timeit.timeit('list(map(lambda x: x**2,range(10)))'))
from datetime import datetime ,timezone,timedelta


print(datetime.now()) # not aware about time zones , local computer time

print(datetime.now(timezone.utc)) # UTC TIME  +00:00 meaning there is not offset


today =  datetime.now(timezone.utc)
tomorrow = today + timedelta(days=1)

print(tomorrow)

print(today.strftime('%d-%m-%Y %H:%M:%S'))

#user_date = input('Give time in YYYY-mm-dd format')
#user_date = datetime.strptime(user_date,'%Y-%m-%d')

#print(user_date)

print(today.timestamp()) # linux timestamp

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