Unlock the Secrets of Python's Return Values
1. Introduction
In Python, functions can return multiple values at the same time. This is useful when a function needs to compute and return multiple results.
2. Understanding the Script
Let's examine the script step by step.
Step 1: Function Definition
def get_sum_and_product(a, b):
sum = a + b
product = a * b
return sum, product
Function Name: get_sum_and_product
Parameters: a and b (two numbers)
Operations:
sum = a + b: Computes the sum of a and b.
product = a * b: Computes the product of a and b.
Return Statement: return sum, product
The function returns two values: the sum and the product.
Step 2: Function Call and Storing Results
result_sum, result_product = get_sum_and_product(3, 4)
The function get_sum_and_product(3, 4) is called with 3 and 4 as arguments.
It returns two values (sum and product), which are stored in:
result_sum → stores the sum (3 + 4 = 7)
result_product → stores the product (3 * 4 = 12)
Step 3: Printing the Results
print("Sum:", result_sum) # Output: Sum: 7
print("Product:", result_product) # Output: Product: 12
This prints the calculated sum and product.
Final Output of the Script
Sum: 7
Product: 12
Key Takeaways
Returning Multiple Values: Python functions can return more than one value using tuples.
Unpacking Values: When calling the function, the returned values can be assigned to multiple variables.
Use Cases:
Computing multiple results from a single function call.
Returning both calculations and status messages in real-world applications.
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Chapters:
0:00 Introduction
0:20 Explanation of the function that calculates sum and product.
1:14 Demonstration of how to call the function with arguments.
3:01 The printed results.
3:46 Discussion on the benefits of having functions that return multiple values to optimize code.
4:23 Emphasis on the importance of code readability and efficiency in programming.
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