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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
Concatenation

Let's dive into concatenation. This process simply joins two strings together. In Python, you can concatenate two strings using the + operator, much like you'd add numbers.

Note

Concatenation won't automatically insert spaces between the strings you're joining.

For instance, you can combine words with an article:


              
123456

            
# Article and word
article = "The"
country = "Netherlands"
# Output result of the concatenations
print(article + country)
print(article + " " + country) # Add blank space between
copy

Note

Keep in mind, you can only concatenate strings with other strings. In other words, you can't directly concatenate a word like 'word' with a number such as 1. To achieve this, first convert the number to a string using the str(1) function, and then concatenate.

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Section 2. Chapter 12
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