Running migrations:
No migrations to apply.
Your models in app(s): ‘dataset’, ‘function_lib’ have changes that are not yet reflected in a migration, and so won’t be applied.
Run ‘manage.py makemigrations’ to make new migrations, and then re-run ‘manage.py migrate’ to apply them.
pydub是Python处理音频的一个库，而pydub库需要依赖ffmpeg和avconv工具中的其中一个，报错说明你的服务器中没有这两个工具，可以百度下如何安装。