Jack-Cherish/python-spider ? reverse-engineered prompt

Build me a Python learning project that shows a bunch of real world web scraping examples in one place.

I want it to be a collection of small scripts that can download novels, documents, music, videos, comic pages, pictures, and simple app or website data, with clear examples people can run one by one. Include a reusable file download helper with progress display, plus a few sample spiders for things like B站 videos and comments, 网易云 music, 抖音 videos, 百度文库 documents, 12306 ticket related info, and some other easy demo targets. If something depends on login, search, or special handling, keep the code simple and explain it in comments.

Make it easy for beginners to understand, with straightforward README notes on how to install dependencies and run each script. If you need current library docs or site changes, look them up online. Keep it focused on learning and personal use, not anything shady or heavy scale scraping.