5-2

#! /usr/bin/env python3.2
# -*- coding: utf-8 -*-

# main.py
""" Task: Exercise 5.2
    Write another program that prompts for a list of numbers as above and at
    the end prints out both the maximum and minimum of the numbers instead of
    the average.
"""

# Main
number = None
numbers = []
min = None
max = None
while number != "done":
    try:
        number = input("Enter a number: ")
        if number == "done":
            break
        try:
            number = float(number)
        except ValueError:
            print("Invalid input")
            continue    # skip code below
    except:
        print("Error")
        continue    # skip code below
    numbers.append(number)  # appends the number at the end of a list 'numbers'

# Determine min / max
for num in numbers:
    if min == None or min > num:
        min = num
    if max == None or max < num:
        max = num

# Print-out
print("Minimum: " + str(min) + "; Maximum: " + str(max))