How to Find the Maximum of Two Numbers in Python
Compare two Python numbers with max(), conditional expressions, and validation while handling ties, numeric types, and readable code.
Tutorials
Browse Python tutorials for beginners and working developers, including syntax, libraries, examples, projects, and real problem-solving guides.
Generate Random Sentences in Python: Templates and Secure Choices
Generate random sentences in Python with word lists, templates, reproducible tests, grammar constraints, and the difference between random and secure selection.
Python -m Flag: Run Modules and Packages from the Command Line
Run a module through Python’s import system, use -m pip and -m venv reliably, and understand how working directories affect resolution.
Remove Brackets From a List in Python: 6 Clean Ways
Remove brackets from a Python list for display with join, map, and formatting while preserving the original list and handling mixed values safely.
Import Python Code from a Subdirectory: Packages, Paths, and -m
Import Python modules from a subdirectory using packages, __init__.py, absolute and relative imports, PYTHONPATH, and python -m without fragile path hacks.
Sum of Squares in Python: Loops, Formulas, and NumPy
Calculate a sum of squares in Python with generator expressions, formulas, math.fsum, NumPy arrays, and a clear distinction from squaring a sum.
Python Tilde (~): Bitwise Invert Explained
Understand Python’s tilde operator as integer bitwise inversion, including the -(x + 1) rule and custom __invert__ methods.
List Shape in Python: Rectangular, Ragged, and NumPy Arrays
Find the shape of Python lists with len, validate nested rows, distinguish ragged data, and convert rectangular lists to NumPy arrays safely.
Randomly Select From a List in Python: choice, sample, and choices
Randomly select one or more Python list items with choice(), sample(), choices(), or secrets.choice(), including empty-list and weighted-selection rules.
Python .pyc Files and __pycache__ Explained
Understand Python bytecode caches, __pycache__, .pyc invalidation, py_compile, compileall, and why source files remain authoritative.