Error: No such command "db".

[Lwve]

run： python3 runserver.py db init

re：

Usage: runserver.py [OPTIONS] COMMAND [ARGS]... Try "runserver.py --help" for help.

Error: No such command "db".

runserver.py line 27：from maple.extension import cache, db no such files？ 是因为extension没有包文件？

[honmaple]

db command is provided by flask_migrate, If you want to use python3 runserver.py db init, please install it.