lint

Author: alexcjohnson

dash/dash.py

@@ -118,8 +118,7 @@ def _handle_callback_args(args, kwargs):
  for arg_or_list in args
  # flatten args that are lists
  for arg in (
- arg_or_list if isinstance(arg_or_list, (list, tuple))
- else [arg_or_list]
+ arg_or_list if isinstance(arg_or_list, (list, tuple)) else [arg_or_list]
  )
  ]
  return [
@@ -130,7 +129,7 @@ def _handle_callback_args(args, kwargs):
  # keep list of args in order, for matching order
  # in the callback's parameters
  [arg for arg in args if not isinstance(arg, Output)],
- prevent_initial_call
+ prevent_initial_call,
  ]
 
 
@@ -857,7 +856,9 @@ def interpolate_index(self, **kwargs):
  def dependencies(self):
  return flask.jsonify(self._callback_list)
 
- def _insert_callback(self, output, inputs, state, callback_args, prevent_initial_call):
+ def _insert_callback(
+ self, output, inputs, state, callback_args, prevent_initial_call
+ ):
  if prevent_initial_call is None:
  prevent_initial_call = self.config.prevent_initial_callbacks
 
@@ -945,7 +946,13 @@ def clientside_callback(self, clientside_function, *args, **kwargs):
  not to fire when its outputs are first added to the page. Defaults to
  `False` unless `prevent_initial_callbacks=True` at the app level.
  """
- output, inputs, state, callback_args, prevent_initial_call = _handle_callback_args(args, kwargs)
+ (
+ output,
+ inputs,
+ state,
+ callback_args,
+ prevent_initial_call,
+ ) = _handle_callback_args(args, kwargs)
  self._insert_callback(output, inputs, state, callback_args)
 
  # If JS source is explicitly given, create a namespace and function
@@ -991,11 +998,17 @@ def callback(self, *args, **kwargs):
  """
  # for backward compatibility, store whether first argument is a
  # list of only 1 Output
- specified_output_list = (
- isinstance(args[0], (list, tuple))
- and len(args[0]) == 1)
- output, inputs, state, callback_args, prevent_initial_call = _handle_callback_args(args, kwargs)
- callback_id = self._insert_callback(output, inputs, state, callback_args, prevent_initial_call)
+ specified_output_list = isinstance(args[0], (list, tuple)) and len(args[0]) == 1
+ (
+ output,
+ inputs,
+ state,
+ callback_args,
+ prevent_initial_call,
+ ) = _handle_callback_args(args, kwargs)
+ callback_id = self._insert_callback(
+ output, inputs, state, callback_args, prevent_initial_call
+ )
 
  def wrap_func(func):
  @wraps(func)
@@ -1071,8 +1084,8 @@ def dispatch(self):
  value
  for arg in self.callback_map[output]["args"]
  for value in (inputs + state)
- if arg['id'] == value['id']
-  and arg['property'] == value['property']]
+ if arg["id"] == value["id"] and arg["property"] == value["property"]
+ ]
  args = inputs_to_vals(args_inputs)
 
  func = self.callback_map[output]["callback"]

tests/integration/test_integration.py

@@ -648,16 +648,21 @@ def test_inin019_callback_dep_types():
  app = Dash(__name__)
  app.layout = html.Div(
  [
- html.Div("child", id="in1"), html.Div("state", id="state1"), html.Div(id="out1"),
- html.Div("child", id="in2"), html.Div("state", id="state2"), html.Div(id="out2"),
- html.Div("child", id="in3"), html.Div("state", id="state3"), html.Div(id="out3"),
+ html.Div("child", id="in1"),
+ html.Div("state", id="state1"),
+ html.Div(id="out1"),
+ html.Div("child", id="in2"),
+ html.Div("state", id="state2"),
+ html.Div(id="out2"),
+ html.Div("child", id="in3"),
+ html.Div("state", id="state3"),
+ html.Div(id="out3"),
  ]
  )
 
  with pytest.raises(IncorrectTypeException):
 
- @app.callback([[Output("out1", "children")]],
- [Input("in1", "children")])
+ @app.callback([[Output("out1", "children")]], [Input("in1", "children")])
  def f(i):
  return i