启动服务报错：Can not import name 'soft_unicode' from 'markupsafe'

解决方案

This is caused by upgrade in MarkupSafe:2.1.0 where they have removed soft_unicode, try using:

pip install markupsafe==2.0.1

但是 werkzeug 依赖于 markupsafe>2.1.1，所以尝试 werkzeug 先降低版本，然后再把

来源：https://stackoverflow.com/questions/72593814/cannot-import-name-soft-unicode-from-markupsafe-in-google-colab