Starting Out With Python Chapter 5 Questions and Answers Graded A+

Starting Out With Python Chapter 5 Questions and Answers Graded A+ What is the difference between a local variable and a global variable? A local variable is defined inside a function and can only be accessed there, while a global variable is defined outside any function and can be accessed anywhere in the program. How do you specify that a function should use a global variable? Use the `global` keyword before the variable name. What is a docstring in Python? A string used to describe what a function does, enclosed in triple quotes. How can you pass multiple arguments to a function? Separate them with commas in the function call and definition. What is the purpose of keyword arguments in a function call? They allow you to specify arguments by name, making the call more readable. 2 What is the purpose of a default parameter value in a function? To provide a value that will be used if no argument is passed for that parameter. How do you specify a default parameter value? Assign a value to the parameter in the function definition. Can a function return multiple values in Python? Yes, using a tuple, list, or dictionary. What is a recursive function? A function that calls itself to solve a problem. What is an example use case for a recursive function? Calculating the factorial of a number. What is the base case in recursion? The condition that stops the recursive calls. 3 Why should you be cautious with recursion? It can lead to infinite recursion and stack overflow if not handled properly. How do you document a function's purpose and usage? Use a docstring immediately after the function definition. What is the purpose of the `*args` syntax in a function definition? To allow the function to accept an arbitrary number of positional arguments. What does the `**kwargs` syntax do in a function definition? It allows the function to accept an arbitrary number of keyword arguments. How do you create an anonymous function in Python? Use the `lambda` keyword. What is the syntax for a lambda function? `lambda arguments: expression` 4 What is a common use case for lambda functions? Short, one-time-use functions for tasks like sorting or mapping. What does the `map()` function do in Python? It applies a function to each item in an iterable. What does the `filter()` function do in