@api.background.task example throws error

[lavabyrd]

Currently I'm not able to use the @api.background.task in the example. Stack trace is below, full app file information also available below - Python v 3.6.6

Serving on http://localhost:5000
ERROR:waitress:Exception when serving /
Traceback (most recent call last):
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/waitress/channel.py", line 338, in service
    task.service()
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/waitress/task.py", line 169, in service
    self.execute()
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/waitress/task.py", line 399, in execute
    app_iter = self.channel.server.application(env, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/responder/api.py", line 99, in __call__
    return self.wsgi_app(environ, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/responder/api.py", line 93, in wsgi_app
    return DispatcherMiddleware(main, apps)(environ, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/werkzeug/wsgi.py", line 826, in __call__
    return app(environ, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/responder/api.py", line 86, in _wsgi_app
    return self.whitenoise(environ, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/whitenoise/base.py", line 75, in __call__
    return self.application(environ, start_response)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/responder/api.py", line 82, in __wsgi_app
    resp = self._dispatch_request(req)
  File "/Users/mp/.local/share/virtualenvs/resp_test-wtUUHlHQ/lib/python3.6/site-packages/responder/api.py", line 125, in _dispatch_request
    self.routes[route].endpoint(req, resp, **params)
  File "main_app.py", line 14, in hello
    @api.background.task
AttributeError: 'API' object has no attribute 'background'

Full main_app.py file -

import responder
api = responder.API()
@api.route("/")
def hello(req, resp):
    @api.background.task
    def sleep(s=10):
        time.sleep(s)
        print("slept!")
    sleep()
    resp.content = "processing"

if __name__ == '__main__':
    api.run(port=5000)

[lavabyrd]

It looks like the background attribute isn't being loaded to the API object:

dir(api)
['_API__wsgi_app', '__call__', '__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', 
'__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', 
'__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', 
'__subclasshook__', '__weakref__', '_dispatch_request', '_resolve_graphql_query', '_session', '_wsgi_app', 
'add_route', 'apps', 'default_response', 'formats', 'graphql_response', 'hsts_enabled', 'mount', 
'path_matches_route', 'redirect', 'route', 'routes', 'run', 'session', 'static_dir', 'status_codes', 'template', 
'template_string', 'templates_dir', 'url_for', 'whitenoise', 'wsgi_app']

[Roach]

Look like it was just added today but hasn't been released yet: 9b0cae3#diff-554e129ce3806dd33d00eac71a9a086e

[kennethreitz]

correct