Django-- File "manage.py", line 16 ) from exc ^ SyntaxError: invalid syntax

fudandandembp:guest futantan$ python manage.py runserver
  File "manage.py", line 16
    ) from exc
         ^
SyntaxError: invalid syntax

用python3 解决

fudandandembp:guest futantan$ python3 manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

System check identified no issues (0 silenced).

You have 17 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.

June 07, 2020 - 07:50:40
Django version 3.0.7, using settings 'guest.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.