t-SNE: crash with typed settings

[ajdapretnar]

• [ ] What's wrong?

  Error Wars: The Settings Strike Back. 🌟 t-SNE crashes when changing a data set.

  Traceback (most recent call last):
  File "/Users/ajda/orange/orange-canvas-core/orangecanvas/scheme/signalmanager.py", line 1010, in __process_next
  if self.__process_next_helper(use_max_active=True):
  File "/Users/ajda/orange/orange-canvas-core/orangecanvas/scheme/signalmanager.py", line 1048, in __process_next_helper
  self.process_node(selected_node)
  File "/Users/ajda/orange/orange-canvas-core/orangecanvas/scheme/signalmanager.py", line 679, in process_node
  self.send_to_node(node, signals_in)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/workflow/widgetsscheme.py", line 792, in send_to_node
  self.process_signals_for_widget(node, widget, signals)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/workflow/widgetsscheme.py", line 826, in process_signals_for_widget
  handler(*args)
  File "/Users/ajda/orange/orange3/Orange/widgets/utils/sql.py", line 31, in new_f
  return f(widget, data, *args, **kwargs)
  File "/Users/ajda/orange/orange3/Orange/widgets/visualize/utils/widget.py", line 458, in set_data
  self.openContext(self.data)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/widget.py", line 1115, in openContext
  self.settingsHandler.open_context(self, *a)
  File "/Users/ajda/orange/orange3/Orange/widgets/settings.py", line 125, in open_context
  super().open_context(widget, domain, *self.encode_domain(domain))
  File "/Users/ajda/orange/orange-widget-base/orangewidget/settings.py", line 1168, in open_context
  self.find_or_create_context(widget, *args)
  File "/Users/ajda/orange/orange-widget-base/orangewidget/settings.py", line 1195, in find_or_create_context
  best_context, best_score = self.find_context(
  File "/Users/ajda/orange/orange-widget-base/orangewidget/settings.py", line 1225, in find_context
  score = self.match(context, *args)
  File "/Users/ajda/orange/orange3/Orange/widgets/settings.py", line 229, in match
  self.match_value(setting, value, attrs, metas))
  File "/Users/ajda/orange/orange3/Orange/widgets/settings.py", line 254, in match_value
  if value[1] < 0:
  TypeError: 'int' object is not subscriptable

• [ ] How can we reproduce the problem?

  File (iris) - t-SNE. File (change to titanic).

• [ ] What's your environment?

• Operating system: OSX

• Orange version: 3.29.dev

• How you installed Orange: git

[janezd]

I can't replicate this. I really hope it's not related to stored settings. Can you send me a workflow?

[janezd]

Doesn't matter, I reverted the PR that changes settings. But let's keep this open, so we know we have to test it when I retry.