"""

ExecutionTime

This class is used for timing execution of code.

For example:

timer = ExecutionTime()

print 'Hello world!'

print 'Finished in {} seconds.'.format(timer.duration())

"""

import time

import random

class ExecutionTime:

def __init__(self):

self.start_time = time.time()

def duration(self):

return time.time() - self.start_time

# ---- run code ---- #

timer = ExecutionTime()

sample_list = list()

my_list = [random.randint(1, 888898) for num in

range(1, 1000000) if num % 2 == 0]

print('Finished in {} seconds.'.format(timer.duration()))