Understanding Python Methods

What keyword is used to define a function in Python?

• function

• def

• procedure

• method

How do you define a function that takes two parameters?

• function_name: (param1, param2)

• function_name(param1, param2) => {}

• function_name(param1; param2)

• def function_name(param1, param2):

What is the purpose of the 'return' statement in a function?

• To print output to the console.

• The purpose of the 'return' statement is to exit a function and return a value to the caller.

• To create a loop within a function.

• To define a function's parameters.

Can a function in Python return multiple values? If yes, how?

• Yes, a function in Python can return multiple values by using commas to separate them.

• Yes, but only if the function is a generator.

• Yes, by using a list to hold the values.

• No, a function can only return one value at a time.

What is the difference between a function and a method in Python?

• A function can only return a value, while a method cannot.

• Methods are defined outside of classes, while functions are defined inside classes.

• A method is a type of function that cannot take parameters.

• A function is independent, while a method is associated with an object.

How do you call a function that is defined in Python?

• By using the function name followed by parentheses.

• By using the function name only.

• By defining the function inside a class.

• By calling the function without parentheses.

What will happen if you call a function without providing the required arguments?

• A TypeError or similar error occurs.

• The function will execute with default values.

• The program will terminate without any errors.

• The function will return None automatically.

Can you define a function inside another function in Python?

• Yes, you can define a function inside another function in Python.

• You can only define methods inside classes, not functions.

• Functions can only be defined at the top level in Python.

• No, functions cannot be defined inside other functions in Python.

What is a default parameter in a function? Give an example.

• Example: def add(x, y=0): return x + y. If called as add(5), it returns 5.

• Example: def greet(name='Guest'): return f'Hello, {name}!'. If called as greet(), it returns 'Hello, Guest!'. If called as greet('Alice'), it returns 'Hello, Alice!'.

• A default parameter is a function that does not take any arguments.

• A default parameter is a variable that cannot be changed.

How do you document a function in Python?

• Add comments throughout the function body.

• Use a separate documentation file.

• Include type hints in the function signature.

• Use a docstring immediately after the function definition.