UNDERSTAND IT. TRY IT. EXPLAIN IT.
Your lesson library.
Practical lessons, written in simple English. Start with the basics and build from there.
Using Windows, Ubuntu, Laragon, XAMPP, or standalone tools? Choose the setup instructions for your environment.
32 published lessons matching your search.
AI provider boundaries, timeouts and bounded retries
Test limited transient retries, rate-limit stops and malformed responses with an offline fake; keep network deadlines and semantic correctness separate.
PythonRun your first Python program
Run your first Python file on Windows or Ubuntu/Linux, understand terminal differences, and create an isolated project environment.
PythonPython values and your weekly study plan
Use clear variable names, calculate study time, and understand type conversion.
PythonCount tasks with Python lists and dictionaries
Build a status report, handle missing values, and practise loops and conditions.
PythonPython functions, module imports and validated contracts
Return reusable results, reject boolean minutes, keep imports quiet and preserve caller data.
PythonPython UTF-8 JSON files and read-only validation
Separate file access, decoding, JSON syntax and data shape, with bounded reads and honest CLI failures.
PythonPython unittest, regression evidence and temporary fixtures
Test real contracts and failures with subtests, unchanged input and owned temporary files.
Workplace EnglishExplain a bug and fix in simple English
Write reproducible steps, expected/actual results, a focused correction and honest verification limits.