[tor-bugs] #28294 [Core Tor/Nyx]: Nyx crashes at graph resizing

[Tor Bug Tracker & Wiki]

#28294: Nyx crashes at graph resizing
--------------------------+------------------------------
 Reporter:  wagon         |          Owner:  atagar
     Type:  defect        |         Status:  closed
 Priority:  Medium        |      Milestone:
Component:  Core Tor/Nyx  |        Version:  Tor: 0.3.4.8
 Severity:  Normal        |     Resolution:  duplicate
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------

Comment (by wagon):

 In "Tor Configuration" window if I press `a` and then scroll down with
 `PageDown` key up to the bottom, I get similar crash:

 {{{
 Traceback (most recent call last):
   File "/usr/local/bin/nyx", line 9, in <module>
     load_entry_point('nyx==2.0.4', 'console_scripts', 'nyx')()
   File "/usr/local/lib/python3.4/dist-packages/nyx/__init__.py", line 176,
 in main
     nyx.starter.main()
   File "/usr/local/lib/python3.4/dist-packages/stem/util/conf.py", line
 289, in wrapped
     return func(*args, config = config, **kwargs)
   File "/usr/local/lib/python3.4/dist-packages/nyx/starter.py", line 118,
 in main
     nyx.curses.start(nyx.draw_loop, acs_support =
 config.get('acs_support', True), transparent_background = True, cursor =
 False)
   File "/usr/local/lib/python3.4/dist-packages/nyx/curses.py", line 217,
 in start
     curses.wrapper(_wrapper)
   File "/usr/lib/python3.4/curses/__init__.py", line 94, in wrapper
     return func(stdscr, *args, **kwds)
   File "/usr/local/lib/python3.4/dist-packages/nyx/curses.py", line 215,
 in _wrapper
     function()
   File "/usr/local/lib/python3.4/dist-packages/nyx/__init__.py", line 243,
 in draw_loop
     keybinding.handle(key)
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/__init__.py",
 line 82, in handle
     self._action(key)
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/config.py", line
 232, in _scroll
     self.redraw()
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/__init__.py",
 line 175, in redraw
     self._last_draw_size = nyx.curses.draw(self._draw, top = self._top,
 height = self.get_height(), draw_if_resized = draw_dimension)
   File "/usr/local/lib/python3.4/dist-packages/nyx/curses.py", line 746,
 in draw
     func(_Subwindow(subwindow_width, subwindow_height, curses_subwindow))
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/config.py", line
 315, in _draw
     _draw_line(subwindow, scroll_offset, DETAILS_HEIGHT + i, entry, entry
 == selected, value_width, description_width)
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/config.py", line
 335, in _draw_line
     attr = [CONFIG['attr.config.category_color'].get(entry.category,
 WHITE)]
   File "/usr/local/lib/python3.4/dist-packages/nyx/panel/config.py", line
 136, in category
     return getattr(manual(self.name), 'category')
 AttributeError: 'NoneType' object has no attribute 'category'
 }}}

 So, the problem was general, it existed in few places. Have you solve it
 everywhere, or only with graph?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28294#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online