Deep Learning - Computer Vision for Beginners Using PyTorch - Variables in Python

The video tutorial introduces the concept of variables in Python, explaining how to create and modify them. It covers constants, reserved words, and the rules for naming variables. The tutorial emphasizes the dynamic typing feature of Python, allowing variables to change types without errors. It also highlights the importance of understanding reserved words and provides examples of correct and incorrect variable names.

What is a constant in programming?

• A value that can change during program execution

• A fixed value that does not change

• A variable that stores multiple values

• A function that performs calculations

Which of the following is a reserved word in Python?

• function

• constant

• variable

• true

What happens if you use a reserved word as a variable name in Python?

• The reserved word will be converted to a string

• An error will occur

• The reserved word will be ignored

• The program will run without errors

What is the purpose of a variable in Python?

• To perform arithmetic operations

• To define a function

• To print output to the screen

• To store values in memory

How does Python determine the type of a variable?

• It is determined by the value assigned

• The programmer must specify it

• It is always a string

• It is always an integer

Which of the following is a correct variable name in Python?

• _variable

• 123variable

• !variable

• variable-name

Why are variable names in Python case sensitive?

• To allow more flexibility in naming

• To prevent errors in code

• To ensure compatibility with other programming languages

• To differentiate between different data types