prime numbers upto n in python

1num = 10
2for i in range(2,num+1):
3    for j in range(2,i):
4        if(i%j == 0):
5            break
6    else:
7        print(i)

1n=int(input("Enter the number till you want to check: "))
2primes = []
3for i in range (2, n+1):
4    for j in range(2, i):
5        if i%j == 0:
6            break
7    else:
8        primes.append(i)
9print(primes)

1lower = int(input("Enter lower range: "))  
2upper = int(input("Enter upper range: "))  
3  
4for num in range(lower,upper + 1):  
5   if num > 1:  
6       for i in range(2,num):  
7           if (num % i) == 0:  
8               break  
9       else:  
10           print(num)