first function

[rob101]

number = get_int(input("Number: ")) passes a str object (which is what is returned from the input() function) to our get_int() function. Then, try: n = int(n), tries to type convert the srt object (which in n in this function) to an int object.

def get_int(n):
    try:
        print(f"Type converting {type(n)}")
        n = int(n)
        print(f"Type conversion to {type(n)} done.")
        return n
    except ValueError:
        print(f"Type conversion of {n} failed.")
        return False


while True:
    number = get_int(input("Number: "))

    if number:
        # do whatever
        print(number, type(number))
    else:
        print("Error in number input")

With a input of 12:

Output:
Type converting <class 'str'>
Type conversion to <class 'int'> done.
12 <class 'int'>