另外提供自动生成的字幕
https://c-t.work/s/c6ef099beefe4f

复制粘贴：
1st -> 1:33
-> when you should commit() your database session
2nd -> 7:20
-> three attributes of the session you probably don't know about (new, deleted, dirty) sounds great for all tracking of changes to objects
3rd -> 11:08
-> related to 2nd regarding when these 3 lists are cleaned and when the db session is cleared in Flask SQLAlchemy; remove() method of the session; how does it affect long-running tasks (e.g celery); be aware of memory usage
4th -> 14:09 -> nice way for handling db.session.remove() and keeping clean the session via context manager.

你这个问题是直接用 r.text 包含一个隐式 decode，如果 requests 没有成功猜对编码会直接抛异常。需要手动解码的情况，采用 bytes = r.content.decode('utf8').encode('utf8')

另外如果 utf8，gbk，Windows-1254 都失败，可以尝试一下 GB18030，或者拷贝出来原值找个猜测解码的网站

如果要备案就阿里云（万网）吧，不然 namesilo

看一下 cc['y'].__class__，不一定是 int