[Matplotlib-users] AttributeError: LineCollection instance has no attribute 'get_lines'

[Nils W. <nw...@ia...>]

Hi all,

The script available at
http://projects.scipy.org/scipy/scipy/ticket/390
yields

True parameters: (5.0, 1.0, -5.0), Guess parameters: (4.0, 1.5, -4.0)
Optimization terminated successfully.
         Current function value: 33.309244
         Iterations: 15
         Function evaluations: 23
         Gradient evaluations: 23
Bfgs: [ 5.2463809   1.00388921 -4.71114799]
Traceback (most recent call last):
  File
"/usr/lib64/python2.4/site-packages/matplotlib/backends/backend_gtk.py",
line 284, in expose_event
    self._render_figure(self._pixmap, w, h)
  File
"/usr/lib64/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py",
line 73, in _render_figure
    FigureCanvasAgg.draw(self)
  File
"/usr/lib64/python2.4/site-packages/matplotlib/backends/backend_agg.py",
line 392, in draw
    self.figure.draw(renderer)
  File "/usr/lib64/python2.4/site-packages/matplotlib/figure.py", line
567, in draw
    for a in self.axes: a.draw(renderer)
  File "/usr/lib64/python2.4/site-packages/matplotlib/axes.py", line
1281, in draw
    a.draw(renderer)
  File "/usr/lib64/python2.4/site-packages/matplotlib/legend.py", line
208, in draw
    self._update_positions(renderer)
  File "/usr/lib64/python2.4/site-packages/matplotlib/legend.py", line
570, in _update_positions
    ox, oy = self._find_best_position(w, h)
  File "/usr/lib64/python2.4/site-packages/matplotlib/legend.py", line
440, in _find_best_position
    verts, bboxes, lines = self._auto_legend_data()
  File "/usr/lib64/python2.4/site-packages/matplotlib/legend.py", line
357, in _auto_legend_data
    hlines = handle.get_lines()
AttributeError: LineCollection instance has no attribute 'get_lines'


Nils