Start HereBefore Concept 01
Meet Python
Meet Python, run a first tiny program, and discover what you can create before beginning Variables.
Start learning✦ Curriculum map Live curriculum
Python Foundations
See the path.
Understand the connections.
Build the essential mental models for writing Python.
Follow the thread.
Each concept builds a useful next step.
Each concept builds a useful next step.
Python Foundations
Curriculum map
Concept Requires
-
01Step 1In curriculum
Variables
Name values so Python programs can store and reuse information.
Starting point No prerequisiteView concept -
02Step 2In curriculum
Data Types
Understand the kinds of values Python can work with and how they behave.
Requires VariablesView concept -
03Step 3In curriculum
Operators
Combine, compare, and transform values with Python operators.
Requires Data TypesView concept -
04Step 4In curriculum
Conditions
Make programs choose a path with if, elif, and else statements.
Requires OperatorsView concept -
05Step 5In curriculum
Loops
Repeat useful work with for and while loops.
Requires ConditionsView concept -
06Step 6In curriculum
Lists
Store several ordered values in one mutable Python collection.
Requires Variables+Data TypesView concept -
07Step 7In curriculum
Indexing & Slicing
Access individual list items and extract ordered parts of a list.
Requires ListsView concept -
08Step 8In curriculum
List Operations & Methods
Add, remove, inspect, and update values in a Python list.
Requires Lists+Indexing & SlicingView concept -
09Step 9In curriculum
Tuples
Store ordered values that cannot be replaced after creation.
Requires Lists+Indexing & SlicingView concept -
10Step 10In curriculum
Sets
Store unique values without relying on a fixed position.
Requires Lists+OperatorsView concept -
11Step 11In curriculum
Dictionaries
Organize values as unique key and value pairs.
Requires Lists+Variables+Data TypesView concept -
12Step 12In curriculum
Iterating over Collections
Use loops to visit values in Python collections.
Requires Loops+Lists+DictionariesView concept -
13Step 13In curriculum
Nested Collections
Access structured data stored inside lists and dictionaries.
Requires Lists+Dictionaries+Indexing & SlicingView concept -
14Step 14In curriculum
Choosing the Right Collection
Select a Python collection that fits the data and task.
Requires Lists+Tuples+Sets+DictionariesView concept -
15Step 15In curriculum
Defining Functions
Define and call reusable blocks of Python code.
Requires Variables+Data TypesView concept -
16Step 16In curriculum
Parameters & Arguments
Pass different values into a function.
Requires Defining FunctionsView concept -
17Step 17In curriculum
Return Values
Return a result from a function to use later.
Requires Parameters & ArgumentsView concept -
18Step 18In curriculum
Variable Scope
Understand where Python variables are available.
Requires Return ValuesView concept -
19Step 19In curriculum
String Methods
Clean, transform, and split text with Python string methods.
Requires Data Types+ListsView concept -
20Step 20In curriculum
Working with Files
Read and write temporary text files in the Python environment.
Requires String Methods+Defining FunctionsView concept -
21Step 21In curriculum
JSON Data
Convert structured JSON text to and from Python data.
Requires Dictionaries+Lists+String MethodsView concept -
22Step 22In curriculum
Error Handling
Handle expected runtime errors with try and except.
Requires Working with Files+JSON DataView concept