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Introduction to Python
course content

Course Content

Introduction to Python

Introduction to Python

1. First Acquaintance with Python
The Very First Steps in PythonHow to Use Comments for ReadabilityPerform Simple Math in PythonHandle More Challenging Math in PythonBringing Python Fundamentals Together
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 PythonNegative Indexing and String Length 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: Outputting Positive, Negative or Zero
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: Completing DictionaryCommon Dictionary Methods in PythonChallenge: Updating Dictionary
5. Loops in Python
Explore the While Loop in PythonChallenge: Working with the While LoopExplore the For Loop in PythonChallenge: Working with the For LoopRange Function in PythonChallenge: Using the Range FunctionHow to Iterate Over Indexes in PythonExplore Nested Loops in Python
6. Functions in Python
Built-in Functions in PythonChallenge: Converting HeightsHow to Create Functions in PythonsChallenge: 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

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Python Tuples

A tuple is another data type in Python that can hold multiple values or variables. These values are separated by commas and wrapped in parentheses. At first, it might seem like tuples are pretty similar to lists, but there are some key differences you should be aware of.

The main distinction lies in mutability: lists can be modified, but tuples cannot. You might recall altering a list using the .extend() method. This method isn't available for tuples, meaning once a tuple is set, you can't change its contents without creating a new tuple. Plus, tuples are more efficient in terms of speed and memory usage compared to lists. Given their immutability, tuples are often chosen when dealing with sensitive data.

Let's keep working with the example data we've been using:


              
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# Create tuple
US_Info = ("USA", 9629091, 331002651)
print(type(US_Info))
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Note

You can also transform an iterable object into a tuple with the tuple() function.


              
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# Create a list 
list_variable = [1, 2, 3]
# Convert it into a tuple
tuple_variable = tuple(list_variable)
# Print the type of the converted variable
print(type(tuple_variable))
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Section 4. Chapter 6
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