Question

I’ve been going through a beginning Python book, and I’ve been trying to write a small block of code that will take users input, check to make sure it can be converted to an int and check if it’s higher than 49152.

I know there’s an easier way to do this, but I can’t get my mind to figure it out.

port_input = raw_input("port(number must be higher than 49152: ")

check = True
while check == True:
    check = False
    try:
        port_number = int(port_input)
    except:
        port_input = raw_input("port(number must be higher than 49152: ")
        check = True

while int(port_input) < 49152:
    port_input = raw_input("Please enter a higher number(hint: more than 49152): ") 

Answer 1

What you have isn’t functionaly correct anyway. Consider if someone puts “123” then “abc”. The 123 will get them through the while check block, but when they get to the while < 49152 block there’s no checking.

Here’s what I come up with (I don’t do python, I just hacked it in based on your existing code…)

check = True
while check :
    port_input = raw_input("port(number must be higher than 49152: ")
    try:
        port_number = int(port_input)
        check = (port_number < 49152)
    except ValueError:
        check = True