Closed
Description
Flask has a route for static files by default, and I disabled that by setting static_folder
to None
.
from flask import Flask
app = Flask(__name__, static_folder=None)
Expected Behavior
With the code above, I expect the output of flask routes
to be like this:
Endpoint Methods Rule
-------- ------- -----------------------
or some message saying there is no route available.
Actual Behavior
But it crashed instead:
Traceback (most recent call last):
File "/Users/timothy/.virtualenvs/sample/bin/flask", line 11, in <module>
sys.exit(main())
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/flask/cli.py", line 890, in main
cli.main(args=args, prog_name=name)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/flask/cli.py", line 557, in main
return super(FlaskGroup, self).main(*args, **kwargs)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/core.py", line 697, in main
rv = self.invoke(ctx)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/flask/cli.py", line 412, in decorator
return __ctx.invoke(f, *args, **kwargs)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/Users/timothy/.virtualenvs/sample/lib/python3.6/site-packages/flask/cli.py", line 841, in routes_command
max(len(rule.endpoint) for rule in rules),
ValueError: max() arg is an empty sequence
Environment
- Python version: 3.6.3
- Flask version: 1.0.1
- Werkzeug version: 0.14.1
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