[Discuss-gnuradio] Error in grid_plotter.py

[Marcus D. Leech]

I have a user who is occasionally getting this:

raceback (most recent call last):
  File 
"/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/common.py", 
line 106, in <lambda>
    self._plotter.Bind(wx.EVT_LEFT_DOWN, lambda evt: 
plotter.call_freq_callback(evt.GetPosition()))
  File 
"/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/grid_plotter_base.py", 
line 90, in call_freq_callback
    x, y = self._point_label_coordinate
TypeError: 'NoneType' object is not iterable

In the "simple_ra" app, which does establish a call-back for left-clicky 
in the spectral window.

Is this perhaps because the callback is getting called at a time when 
the plotter isn't fully set up, and how can we detect that case properly?


--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org