Question

In Python, how do you reference a variable inside another function, or how do you make a local variable global? Here's my code: http://pastie.org/1849782 I'm attempting to find the first 1000 prime numbers.

Answer 1

I'm a bit busy at the moment, but will be able to help you out soon if you're still stuck.

You can always reference a global variable within a function, but to change it, you have to do

global variable_name

at the top of you function def

a = 1
def func():
global a
a += 1

I'll be on in a little while, let me know if you're still stuck on it.

Answer 2

P.S. You don't need to assign to `a` before the def, just before you call it.

def func()
global a
a += 1

a = 1
func()

Answer 3

I'm not sure you want to nest function definitions like that. Also, if `odd` is a tuple, you can't mutate it.

Try having a look through this, it find's the 1000th prime, but doesn't keep a list of all one thousand. You could easily get it to do that. Let me know if you're still stuck.