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….
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…
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…
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…
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…
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…
I’ve seen too many frustrating moments for Python beginners: Until I discovered Flet – this magical tool that lets Python beginners “skip the frontend”: Without writing a single line of HTML/CSS/JS, using pure…
ling Before starting to write the crawler code, we need to complete tool installation and environment configuration, as well as understand the basic structure of website videos to avoid pitfalls….
As a Python user, I use Excel files to load/store data because business people like to share data in Excel or CSV formats. Unfortunately, Python is particularly slow when processing…
What is RAGFlow? Imagine you have a mountain of documents, PDFs, Word files, Excel sheets, images, web pages, and you need to find the exact piece of information inside them….