Python: Learn Python in One Day and Learn It Well. Python for Beginners With Hands-On Project. by Jamie Chan

Author:Jamie Chan
Language: eng
Format: mobi
ISBN: 1506094384
Publisher: Learn Coding Fast
Published: 2014-12-19T05:00:00+00:00

def tells the program that the indented code from the next line onwards is part of the function. return is the keyword that we use to return an answer from the function. There can be more than one return statements in a function. However, once the function executes a return statement, the function will exit. If your function does not need to return any value, you can omit the return statement. Alternatively, you can write return or return None.

Let us now define our first function. Suppose we want to determine if a given number is a prime number. Here’s how we can define the function using the modulus (%) operator we learned in Chapter 3 and the for loop and if statement we learned in Chapter 6.

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