Course Content

Python Functions Tutorial

1. What is a Function in Python?

What Is Function?Challenge: Building Functions Arguments Return Value Function Body Built-in Functions

2. Positional and Optional Arguments

Positional Arguments Challenge: Positional Arguments Optional Arguments Challenge: Optional Arguments

3. Arbitrary Arguments

Arbitrary Arguments Arbitrary Keyword Arguments Combination of Positional and Optional Arguments

4. Function Return Value Specification

Single Return Value Multiple Return Values None Return Value Generator Functions Challenge: Traffic lights

5. Recursion and Lambda Functions

Recursion Challenge: Search Engine Lambda Functions Immediately Invoked Lambda Expression Writing Effective and Maintainable Functions

Challenge: Traffic lights

Task

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Modify the existing Python program to simulate a traffic light using a generator. The program should display the state of the traffic light ("Red", "Yellow", "Green") for a specified number of cycles:

Write a generator traffic_light_generator that yields the state of the traffic light ("Red", "Yellow", "Green") in an infinite loop.
Use this generator to output the state of the traffic light to the console nine times in the program.
Example output:

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Section 4. Chapter 5

Challenge: Traffic lights

Task

Swipe to show code editor

Write a generator traffic_light_generator that yields the state of the traffic light ("Red", "Yellow", "Green") in an infinite loop.
Use this generator to output the state of the traffic light to the console nine times in the program.
Example output:

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Everything was clear?

Thanks for your feedback!

Section 4. Chapter 5

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