The Ultimate Guide to Python Programming With Python 3.10 - Variable Scope

The video tutorial explains the concept of variable scoping in Python, focusing on the difference between global and local scopes. It demonstrates how variables defined in different scopes behave and how Python's globals and locals functions can be used to access these scopes. Through practical examples, the tutorial highlights common pitfalls and clarifies how to manage variable scopes effectively.

What is the initial value of the variable 'NUM' before any function is called?

• Undefined

• None

• 0

• 1

Why does the 'NUM' variable not change to 1 after calling the 'change' function?

• The variable is immutable

• Because of scoping rules

• Due to a syntax error

• Because the function is not called

What is the purpose of having different scopes in Python?

• To enhance security

• To allow multiple data types

• To prevent variable name conflicts

• To make code execution faster

What does the 'globals()' function return?

• A dictionary of all global variables

• A dictionary of all local variables

• A list of all local variables

• A list of all functions

How can you modify a global variable from within a function?

• By using the 'locals()' function

• By declaring it as 'global' inside the function

• By using the 'print()' function

• By using the 'input()' function

What does the 'locals()' function provide access to?

• All built-in functions

• All imported modules

• Local variables within a function

• Global variables

Why might the 'globals()' dictionary contain more entries than the 'locals()' dictionary?

• Because it includes built-in functions

• Because it includes local variables

• Because it is larger by default

• Because it is updated more frequently