Course Content
Introduction to Python(ihor)
Introduction to Python(ihor)
2. Variables and Types in Python
How to Store Numbers in PythonPython Naming Rules for VariablesHow to Work with Variables in PythonData Types in PythonChallenge: Converting Kilometers to MilesStore Text with Strings in PythonString Indexing in PythonString Slicing in PythonChallenge: Retrieving Letters from StringString Concatenation in Python
3. Conditional Statements in Python
Boolean Data Type in PythonChallenge: Working with Comparison OperatorsHow to Combine Conditions in PythonChallenge: Working with Logical OperatorsMembership Operators and Type Comparisons in PythonHow to Use if/else Expressions in PythonChallenge: Running a Grocery StoreChallenge: Creating Odd and Even Logicif/elif/else ExpressionsChallenge: Running Grocery Store ExtendedChallenge: Weather Adviser
4. Other Data Types in Python
Python ListsCommon List Methods in PythonChallenge: Updating ListNested Lists in PythonChallenge: Retrieving Information from Nested ListPython TuplesCommon Tuple Methods in PythonChallenge: Updating TupleNested Tuples in PythonChallenge: Retrieving Information from Nested TuplePython DictionariesChallenge: Creating DictionaryCommon Dictionary Methods in PythonChallenge: Updating Dictionary
6. Functions in Python
Built-in Functions in PythonChallenge: Converting HeightsHow to Create Functions in PythonChallenge: Writing First FunctionUse of if/else Statements in Python FunctionsChallenge: Identifying Positive Values Functions Without Return in PythonChallenge: Creating Logging FunctionModifying Functions in PythonChallenge: Updating Logic of the FunctionLambda Functions in PythonChallenge: Creating Lambda Function
String Concatenation in Python
Concatenation is the process of joining two strings together. You can concatenate strings using the + operator, just as you would add numbers. For instance, you can combine words with an article, but concatenation does not automatically insert spaces between the strings you are joining.
# Article and word article = "The" country = "Netherlands" # Concatenate without a space print(article + country) # Concatenate with a space between print(article + " " + country) # Add blank space between
You can only concatenate strings with other strings. This means you can't directly concatenate a word like 'word' with a number like 1. To do so, convert the number to a string using str(1) before concatenating.
# Variables to store the greeting message and user ID greeting = "Welcome, user #" user_id = 42 # Attempting direct concatenation (will raise an error) # print(greeting + user_id) # Correct way: Convert the number to a string print(greeting + str(user_id))
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Section 2. Chapter 10
