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Introduction to Python
course content

Course Content

Introduction to Python

Introduction to Python

1. First Acquaintance
The Very First StepsCommentsSome Simple MathMore Challenging MathChallengeBringing It All Together
2. Variables and Types
Storing NumbersNaming RulesUsing VariablesData TypesNumbersChallengeStoring TextString IndexingNegative Indexing and LengthString SlicingChallengeConcatenation
3. Conditional Statements
Boolean Data TypeChallenge: Comparison OperatorsCombining ConditionsChallenge: Logical OperatorsMembership Operators and Types ComparisonSimple if/else ExpressionsChallenge: Grocery StoreChallenge: Odd and Evenif/elif/else ExpressionsChallenge: Grocery Store ExtendedChallenge: Positive, Negative or Zero
4. Other Data Types
What Is a List?List MethodsChallengeNested ListsChallengeWhat Is a Tuple?Tuple MethodsChallengeNested TuplesChallengeWhat Is a Dictionary?ChallengeDictionary MethodsChallenge
5. Loops
while LoopChallengefor LoopChallengeRangeChallengeIterating Over IndexesNested Loops
6. Functions
Built-in FunctionsChallengeDefining Your First FunctionChallengeif/else Statements in FunctionsChallengeFunctions With No ReturnChallengeModifying FunctionsChallengeLambda FunctionsChallenge

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:

Task

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.

Task

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.

Everything was clear?

Section 2. Chapter 3
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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:

Task

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.

Task

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.

Everything was clear?

Section 2. Chapter 3
toggle bottom row

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:

Task

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.

Task

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.

Everything was clear?

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:

Task

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.

Section 2. Chapter 3
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