How do I find the sum of prime numbers in a given range in Python 3.5?

Question

I managed to create a list of prime numbers in a given range using this:

import numpy as np  

num = int(input(\"Enter a number: \"))  

for a in range(2,num         


        

Answer 1

If you want to use sum, you could make a generator function, yielding each a in the loop so you have an iterable to call sum on:

num = int(input("Enter a number: "))

def sum_range(num):
    for a in range(2, num + 1):
        maxInt = int(a **.5) + 1 
        for i in range(2, maxInt):
            if a % i == 0:
                break
        else:
            yield a

print(sum(sum_range(num)))