commands.py

We attempted to read from templates/app_commands.py_hw.txt but failed.

app/commands.py:3:1: F401 'os' imported but unused
app/commands.py:4:1: F401 'sys' imported but unused
app/commands.py:5:1: F401 'glob.glob' imported but unused
app/commands.py:6:1: F401 'subprocess.call' imported but unused
app/commands.py:8:1: F401 'click' imported but unused
app/commands.py:9:1: F401 'flask.current_app' imported but unused
app/commands.py:10:1: F401 'flask.cli.with_appcontext' imported but unused
app/commands.py:11:1: F401 'werkzeug.exceptions.MethodNotAllowed' imported but unused
app/commands.py:11:1: F401 'werkzeug.exceptions.NotFound' imported but unused
                        

Click commands.