Top 8 Most Common Date & Time Handling Scenarios in Python (time & datetime)
Time is intangible, yet it flows through every line of code you write: logs are stamped with it, tasks are triggered by it, and reports are organized around it… Today,…
Easy Automation on Windows Using Python’s pywin32 Library
Have you encountered similar requirements when developing Windows applications or automation tasks? 🔍 Need: After packaging your developed application into an EXE file, make it run automatically on the computer, and…
Implementing Recording with Python
Today we will introduce a fun and practical thing. We use Python to implement a recording function. Without further ado, let’s get started. install Install PvRecorder using PIP: Find available…
8 Methods for Scheduled Execution of Python Programs
In daily work, we often use tasks that need to be executed periodically. One way is to use the crond that comes with the Linux system combined with the command…
The Hidden Tax on Every AI Call: How We Cut Costs 50% by Ditching JSON, Why AI Developers Should Adapt It?
If you’re building anything with large language models today, there’s a good chance you’re overpaying for every single API call, and you might not even know it. The culprit? JSON….
What is a Django File Object?
I. What is a Django File Object? Django abstracts a set of “file handling systems”. The core concept is: django.core.files.File: The base class for all file-related classes in Django. It provides…
Python Learning the Design Principles of Dictionary Data Structures
Conclusion first: Python’s dict uses a hash table with open addressing (specifically quadratic probing + pseudo-random hopping) under the hood. Core Structure: A hash table is essentially an “array”. Each dict…
Calling LLM APIs for Conversation with Python
I. OpenAI (GPT) 1. Install Package bash pip install openai 2. Configure API Key and Base URL python OPENAI_API_KEY = “sk-xxxxx” OPENAI_BASE_URL = “https://api.openai.com/v1” 3. API Call Example python import…
Markdown Document Format Analysis and Structured Parsing of .md Files Using Python
I. Markdown Documents Essentially, a Markdown document is: a tree structure (Block level) + inline structure (Inline level). Block-level elements (structure): Inline-level elements (appear within a line): Patterns in .md file…
Cheatsheet Summary of 25 Core Python Concepts (Double Your Learning Efficiency)
Python beginners often struggle with “too many and scattered concepts that are forgotten as soon as they’re learned” – variable naming, data types, loop logic, function parameters… You just memorize…