Course Content

Introduction to Python

1. First Acquaintance

The Very First Steps Comments Some Simple Math More Challenging Math Challenge Bringing It All Together

2. Variables and Types

Storing Numbers Naming Rules Using Variables Data Types Numbers Challenge Storing Text String Indexing Negative Indexing and Length String Slicing Challenge Concatenation

3. Conditional Statements

Boolean Data Type Challenge: Comparison Operators Combining Conditions Challenge: Logical Operators Membership Operators and Types Comparison Simple if/else Expressions Challenge: Grocery Store Challenge: Odd and Even if/elif/else Expressions Challenge: Grocery Store Extended Challenge: Positive, Negative or Zero

4. Other Data Types

What Is a List?List Methods Challenge Nested Lists Challenge What Is a Tuple?Tuple Methods Challenge Nested Tuples Challenge What Is a Dictionary?Challenge Dictionary Methods Challenge

5. Loops

while Loop Challenge for Loop Challenge Range Challenge Iterating Over Indexes Nested Loops

6. Functions

Built-in Functions Challenge Defining Your First Function Challenge if/else Statements in Functions Challenge Functions With No Return Challenge Modifying Functions Challenge Lambda Functions Challenge

Using Variables

In the first lesson of this section, you set up a variable named chapter. Now, how can we tweak or change variables we've already set up? The good news is, you can adjust them just like you did with the values in the previous lessons.

Let's say you've got the cost of an item saved in the price variable and you want to apply a 15% discount. You can simply reassign the updated value like this:


              123
            
price = 50 # Initial price
price = price * (1 - 0.15) # Applying the discount
print(price)

Task

Swipe to show code editor

Since you first set up the chapter variable, you've gone through two more chapters. Add 2 to the chapter variable and reassign this new value to it.

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

Everything was clear?

Thanks for your feedback!

Section 2. Chapter 3

Using Variables

Let's say you've got the cost of an item saved in the price variable and you want to apply a 15% discount. You can simply reassign the updated value like this:


              123
            
price = 50 # Initial price
price = price * (1 - 0.15) # Applying the discount
print(price)

Task

Swipe to show code editor

Since you first set up the chapter variable, you've gone through two more chapters. Add 2 to the chapter variable and reassign this new value to it.

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

Everything was clear?

Thanks for your feedback!

Section 2. Chapter 3

Using Variables

Let's say you've got the cost of an item saved in the price variable and you want to apply a 15% discount. You can simply reassign the updated value like this:


              123
            
price = 50 # Initial price
price = price * (1 - 0.15) # Applying the discount
print(price)

Task

Swipe to show code editor

Since you first set up the chapter variable, you've gone through two more chapters. Add 2 to the chapter variable and reassign this new value to it.

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

Everything was clear?

Thanks for your feedback!

Let's say you've got the cost of an item saved in the price variable and you want to apply a 15% discount. You can simply reassign the updated value like this:


              123
            
price = 50 # Initial price
price = price * (1 - 0.15) # Applying the discount
print(price)

Task

Swipe to show code editor

Since you first set up the chapter variable, you've gone through two more chapters. Add 2 to the chapter variable and reassign this new value to it.

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

Section 2. Chapter 3

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