Create sol2.py

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Sanders Lin 2018-12-06 23:19:28 +08:00 committed by GitHub
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#from Python.Math import prime_generator
import math
from itertools import takewhile
def primeCheck(number):
if number % 2 == 0 and number > 2:
return False
return all(number % i for i in range(3, int(math.sqrt(number)) + 1, 2))
def prime_generator():
num = 2
while True:
if primeCheck(num):
yield num
num+=1
def main():
n = int(input('Enter The upper limit of prime numbers: '))
print(sum(takewhile(lambda x: x < n,prime_generator())))
if __name__ == '__main__':
main()