Python In Practice - 15 Projects to Master Python - globals( )

The video tutorial explains how to use the globals function in Python to access and modify variable names and their values. It demonstrates how globals returns a dictionary of all variables and their values, and how this can be used in a for loop to access and change these values. The tutorial provides a practical example of changing variable values to zero using the globals function within a loop.

What does the globals function return when used in a Python file?

• A set of variable names

• A dictionary of variable names and their values

• A tuple of variable values

• A list of variable names

How can the globals function be utilized within a for loop?

• To create new variables

• To delete existing variables

• To access and modify variable values

• To print variable names

What is the purpose of using square brackets with the globals function?

• To sort dictionary values

• To create a new dictionary

• To access dictionary elements

• To delete dictionary keys

What happens to the variable values when they are modified using the globals function in a loop?

• They remain unchanged

• They are deleted

• They are updated to new values

• They are converted to strings

Which of the following is a correct way to change a variable's value using the globals function?

• globals(new_value) = variable

• globals.variable = new_value

• globals(variable) = new_value

• globals['variable'] = new_value