June 2017
Beginner
320 pages
7h 37m
English
book
Learn Python 3 the Hard Way: A Very Simple Introduction to the Terrifyingly Beautiful World of Computers and Code
by Zed A. Shaw
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Exercise 21. Functions Can Return Something
You have been using the = character to name variables and set them to numbers or strings. We’re now going to blow your mind again by showing you how to use = and a new Python word, return, to set variables to be a value from a function. There will be one thing to pay close attention to, but first type this in:
ex21.py
1 def add(a, b): 2 print(f"ADDING {a} + {b}") 3 return a + b 4 5 def subtract(a, b): 6 print(f"SUBTRACTING {a} - {b}") 7 return a - b 8 9 def multiply(a, b):10 print(f"MULTIPLYING {a} * {b}")11 return a * b1213 def divide(a, b):14 print(f"DIVIDING {a} / {b}")15 return a / b16 17
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.