Python HTTP Server: http.server, Ports, Directories, and Safety
Start Python’s local http.server, choose a port and directory, bind safely, write a small handler, and understand why it is not a production web server.
Tutorials
Browse Python tutorials for beginners and working developers, including syntax, libraries, examples, projects, and real problem-solving guides.
Copy a List in Python: Slicing, copy(), and deepcopy()
Copy Python lists safely with slicing, list(), copy(), and deepcopy(), and understand shallow copies, nested mutability, aliases, and performance.
Append Strings in Python: +, join(), f-Strings, and More
Combine Python strings with +, +=, join(), f-strings, StringIO, and templates while keeping types, separators, and encoding explicit.
Python XOR Operator (^): Booleans, Bits, and Examples
Use Python’s ^ operator deliberately: bitwise XOR compares integer bits, while explicit boolean logic can make truth-value intent clearer.
Black Formatter with Git: Hooks, CI, and Configuration
Use Black with Git, pre-commit, pyproject.toml, GitHub Actions, VS Code, and Jupyter while keeping formatting reproducible.
Python Timezone: zoneinfo, UTC, Conversion, and DST
Handle Python timezones with zoneinfo, aware datetimes, UTC storage, astimezone(), DST transitions, and safe formatting.
Python struct.pack(): Format Strings, Bytes, and Endianness
Encode fixed binary layouts with struct.pack(), decode with unpack(), and make byte order, sizes, ranges, and record length explicit.
Python OrderedDict: move_to_end(), popitem(), and Modern dicts
Use OrderedDict when explicit reordering, endpoint popping, or order-sensitive equality matters, and compare it with modern dict behavior.
Python threading.Lock: Prevent Race Conditions
Use Python threading.Lock with context managers to protect shared state, avoid races, choose lock scope, and handle contention.
functools.wraps in Python: Decorator Metadata, Signatures, and Stacking
Use functools.wraps to preserve Python decorator metadata, __wrapped__, docstrings, annotations, and reliable introspection across stacked decorators.