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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

book
Challenge: Positive, Negative or Zero

Recall the exercise from two chapters back. In that challenge, you crafted an if/else statement to determine if a number was even or odd. Now, let's create another conditional structure that identifies zeros, positive numbers, and negative numbers.

Task
test

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Design an if/elif/else statement to assess whether the number num is positive, negative, or zero.

  • If num is negative, print "The number num is negative".
  • If num is positive, print "The number num is positive".
  • If num is 0, print "The number num is zero".

To accomplish this, fill in the blanks (indicated by ___) in the print() functions with the appropriate terms.

Solution

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Section 3. Chapter 11
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book
Challenge: Positive, Negative or Zero

Recall the exercise from two chapters back. In that challenge, you crafted an if/else statement to determine if a number was even or odd. Now, let's create another conditional structure that identifies zeros, positive numbers, and negative numbers.

Task
test

Swipe to show code editor

Design an if/elif/else statement to assess whether the number num is positive, negative, or zero.

  • If num is negative, print "The number num is negative".
  • If num is positive, print "The number num is positive".
  • If num is 0, print "The number num is zero".

To accomplish this, fill in the blanks (indicated by ___) in the print() functions with the appropriate terms.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 11
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