Python Lore

Using datetime.datetime.now to Get Current Date and Time

Python datetime timezone issues. Use aware objects with the zoneinfo module. Convert to UTC for storage to fix ambiguity and prevent TypeError when mixing datetimes.

Pygame Python modules

Implementing Physics and Gravity in Pygame

Pygame, Python modulesGravity, Physics, Pygame

Pygame time-based physics using delta time (dt) for frame rate independence. Decouple simulation from rendering for a robust, deterministic game update loop.

Python modules socket

Understanding Blocking and Non-blocking Socket Operations

Python modules, socketBlocking, Non-blocking, Sockets

Python non-blocking sockets with setblocking(False). Handle BlockingIOError exceptions for responsive I/O. Avoid busy-wait loops and CPU polling with recv().

Python modules re

Zero-Width Assertions in Regular Expressions: Lookahead and Lookbehind

Python modules, reLookahead, Lookbehind, Zero-Width Assertions

Regex lookahead & lookbehind for string splitting. Use zero-width assertions with Python's re.split to split strings without consuming delimiters. Split camel case.

Matplotlib Python modules

Customizing Matplotlib with Style Sheets

Matplotlib, Python modulesStyle Sheets

Matplotlib plot customization with rcParams, style sheets, and the matplotlibrc file. Settings hierarchy from plt.style.use, context managers, to function arguments.

Python modules sys

Identifying Thread Information with sys._current_frames

Python modules, syssys._current_frames, Threads

Python's `sys._current_frames()` for thread stack traces. Walk the call stack with frame objects and `f_back` for live debugging, profiling, and monitoring applications.

Python modules socket

Advanced Network Services with Python socket Module

Python modules, socketAdvanced Network Services, Python socket

Resilient network server in Python using the selectors module. Failure isolation, non-blocking I/O, and robust error handling for multiple concurrent clients.

$Exploring math.modf for Fractional and Integer Parts$

math Python modules

Exploring math.modf for Fractional and Integer Parts

math, Python modulesFractional, Integer Parts, math.modf

Python's math.modf vs. modulo (%) and floor division (//). Analysis of remainder, integer/fractional parts, and sign behavior with negative numbers.

Language Features

Python and Email Sending

Language FeaturesEmail, Networking

Python email package for MIME messages. Build plain text, HTML, and multipart emails with attachments using MIMEText, MIMEMultipart, and MIMEBase classes.

os Python modules

Exploring os.path.exists for File Existence Checking in Python

os, Python modulesFile Existence, os.path.exists

Optimize file and directory management in Python using the `os.path` module. Check file existence, manipulate paths, and ensure cross-platform compatibility.

Python Lore

Using datetime.datetime.now to Get Current Date and Time

Implementing Physics and Gravity in Pygame

Understanding Blocking and Non-blocking Socket Operations

Zero-Width Assertions in Regular Expressions: Lookahead and Lookbehind

Customizing Matplotlib with Style Sheets

Identifying Thread Information with sys._current_frames

Advanced Network Services with Python socket Module

Exploring math.modf for Fractional and Integer Parts

Python and Email Sending

Exploring os.path.exists for File Existence Checking in Python

Python Programming for Beginners

Murach’s Python Programming

Python Mastery

Python for Beginners