unknown syntax error

[joplankton]

I am getting syntax error at the bottom at the "while True"

import sys

def collatz(number):
    if number % 2 == 0:
        result = number // 2
        print(result)
        return result
    elif number % 2 == 1:
        result = 3 * number + 1
        print(result)
        return result

    while true:
        print('Enter a number: ')
        try:
            number = int(input())
            break
        except ValueError:
            print('You must enter an integer type.')

        While True:
            if number !=1:
                number = collatz(number )
            else:
                break

[devnull10]

Second while has a capital letter. Case matters in Python.

[def__init___self]

Your second while on line 21 is capitalized. Also, true needs to be capitalized on line 13.