编程语言项目大全 - PBL(Project based Learning) - 包含全部主流语言
https://zhuanlan.zhihu.com/p/267621138
上面这篇知乎文章推荐的一个 Github 项目，收集了一些适合学习编程的实例 ===>
PBL(Project based Learning)
https://github.com/practical-tutorials/project-based-learning
这个项目下的python部分收录了下面这个有意思的项目 ===>
Web Scraping with Scrapy and MongoDB
https://realpython.com/web-scraping-with-scrapy-and-mongodb/#store-the-data-in-mongodb
参考：https://zhuanlan.zhihu.com/p/375234592 用Python操作MongoDB
https://www.mongodb.com/docs/manual/introduction/ MongoDB documentation
https://www.mongodb.com/docs/drivers/pymongo/ PyMongo
https://pymongo.readthedocs.io/en/stable/index.html PyMongo documentation
