Course Content

Python Tutorial for Beginners

1. Introduction to Programming

Writing Lines of Code Challenge 1 Challenge 2

2. Variables in Python

Variables for String Challenge Variables for Numbers Math expressions: Familiar operators Challenge 1 Challenge 2

3. Comments

Comments Challenge 1 Challenge 2

4. If...Else Statement

if statement Comparison operators if-else and if-else-elif statements Challenge 1 Challenge 2

Comparison operators

Let's talk more about ==. It is one of the comparison operators, in particular the equality operator. You can use it to compare two things to see if they are equal. For example, you can compare the following:

a variable with a string,
a variable with a number,
a variable with a math expression,
a variable with a variable.

Let's look at the example of using this operator:


              1
            
if name = "Alex":


              1
            
if number_1 + number_2 == 50:


              1
            
if total_cost == previous_cost + 120:

Another comparsion operator, !=, is the opposite of ==, It means is not equal to.


              123
            
your_ticket_number = 357
if your_ticket_number != 777:
    print("Better luck next time")

Here are 4 more comparsion operators, usually used to compare numbers.

> - is greater than
< - is less than
>= - is greater than or equal to
<= - is less than or equal to

Task

Write an if statement that tests whether a first variable is greater than a second variable. If the test passes, make the second variable equal to the first variable. The name of the first variable is number_1, the name of the second variable is number_2. Display the result of the number_2.

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 4. Chapter 2

Comparison operators

a variable with a string,
a variable with a number,
a variable with a math expression,
a variable with a variable.

Let's look at the example of using this operator:


              1
            
if name = "Alex":


              1
            
if number_1 + number_2 == 50:


              1
            
if total_cost == previous_cost + 120:

Another comparsion operator, !=, is the opposite of ==, It means is not equal to.


              123
            
your_ticket_number = 357
if your_ticket_number != 777:
    print("Better luck next time")

Here are 4 more comparsion operators, usually used to compare numbers.

> - is greater than
< - is less than
>= - is greater than or equal to
<= - is less than or equal to

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 4. Chapter 2

Comparison operators

a variable with a string,
a variable with a number,
a variable with a math expression,
a variable with a variable.

Let's look at the example of using this operator:


              1
            
if name = "Alex":


              1
            
if number_1 + number_2 == 50:


              1
            
if total_cost == previous_cost + 120:

Another comparsion operator, !=, is the opposite of ==, It means is not equal to.


              123
            
your_ticket_number = 357
if your_ticket_number != 777:
    print("Better luck next time")

Here are 4 more comparsion operators, usually used to compare numbers.

> - is greater than
< - is less than
>= - is greater than or equal to
<= - is less than or equal to

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

a variable with a string,
a variable with a number,
a variable with a math expression,
a variable with a variable.

Let's look at the example of using this operator:


              1
            
if name = "Alex":


              1
            
if number_1 + number_2 == 50:


              1
            
if total_cost == previous_cost + 120:

Another comparsion operator, !=, is the opposite of ==, It means is not equal to.


              123
            
your_ticket_number = 357
if your_ticket_number != 777:
    print("Better luck next time")

Here are 4 more comparsion operators, usually used to compare numbers.

> - is greater than
< - is less than
>= - is greater than or equal to
<= - is less than or equal to

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 4. Chapter 2

Switch to desktop for real-world practiceContinue from where you are using one of the options below