Python

1. 1

   Hello, Python

   VariablesPrintRepl
   20 min
2. 2

   Numbers and Strings

   IntegersFloatsString concatenationF-strings
   25 min
3. 3

   Control Flow

   If/elif/elseComparison operatorsBoolean operatorsWhile loopsFor loopsBreak and continue
   30 min
4. 4

   Lists and Tuples

   List creationIndexingSlicingAppendPopIteration+2
   30 min
5. 5

   Dictionaries and Sets

   Dict basicsGet with defaultIterate keysIterate valuesIterate itemsSets+1
   30 min
6. 6

   Functions

   DefParametersDefault valuesKeyword arguments*args and **kwargsReturn values+1
   30 min
7. 7

   Comprehensions

   List comprehensionsDict comprehensionsSet comprehensionsConditional expressionsReadability tradeoffs
   25 min
8. 8

   Files and IO

   Open with withReading linesWriting filesPathlib.PathJson readJson write
   30 min
9. 9

   Modules and Packages

   ImportFrom importWriting your own moduleIf __name__ == "__main__"Packages__init__.py
   30 min
10. 10

    Classes and OOP

    Class definition__init__Instance attributesClass attributesMethods__repr__
    35 min
11. 11

    Inheritance and Composition

    SubclassingSuper()Method overridingCompositionWhen to choose composition
    30 min
12. 12

    Exception Handling

    TryExceptElseFinallyRaiseCustom exception classes+1
    30 min
13. 13

    Iterators and Generators

    Iterator protocolYieldGenerator functionsGenerator expressionsLazy evaluation
    30 min
14. 14

    Decorators

    Functions are objectsWrapper functions@decorator syntaxFunctools.wrapsParametrized decorators
    30 min
15. 15

    Context Managers

    With statement__enter__ and __exit__Writing your own context managerContextlib.contextmanager
    25 min
16. 16

    Concurrency: Threads and Async

    GIL in plain languageConcurrent.futures.ThreadPoolExecutorAsyncio basicsAsync defAwaitWhen to use threads vs async
    40 min
17. 17

    Testing with pytest

    Test functionsAssertRunning pytestParametrizeFixtures
    35 min
18. 18

    Packaging and Deployment

    Pyproject.tomlPip install -eConsole scriptsBuilding a wheelPublishing to PyPI
    35 min

Every lesson, quiz, and tutor reply renders in your language. The AI tutor matches the language you ask in.