pysoftware

# Greatest common divisor
# Наибольший общий делитель

a, b = 16, 17
while b != 0:
	# temp = a
	# a = b
	# b = temp % b
	a, b = b, a%b
print(a)

pysoftware

from time import time
# Time before running program
start = time()
# for i ...: ...
# Time after program done
print('Time', time() - start)

pysoftware

from fake_useragent import UserAgent
def get_html(url):
	response = requests.get(url, headers={'User-Agent': UserAgent().chrome})
	return response.text
# Результат UserAgent().chrome:
# 'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.15 (KHTML, like Gecko) Chrome/24.0.1295.0 Safari/537.15'