John Didion wrote:
> The documentation for hist says that the color kwarg can take a sequence
> of rgba tuples. However, anytime I pass a sequence I get:
That is an error in the docstring; it can take only a single color,
which will be applied to both the edge and the fill.
Eric
>
>
> Traceback (most recent call last):
> File "./chromoplot.py", line 283, in <module>
> main() File "./chromoplot.py", line 280, in main
> plot(data_file, figure_file, options)
> File "./chromoplot.py", line 225, in plot
> c.plot(figure_file)
> File "./chromoplot.py", line 220, in plot
> fig.savefig(figure_file)
> File "/Library/Python/2.6/site-packages/matplotlib/figure.py", line
> 1032, in savefig
> self.canvas.print_figure(*args, **kwargs)
> File "/Library/Python/2.6/site-packages/matplotlib/backend_bases.py",
> line 1476, in print_figure
> **kwargs)
> File
> "/Library/Python/2.6/site-packages/matplotlib/backends/backend_agg.py",
> line 358, in print_png
> FigureCanvasAgg.draw(self)
> File
> "/Library/Python/2.6/site-packages/matplotlib/backends/backend_agg.py",
> line 314, in draw
> self.figure.draw(self.renderer)
> File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
> draw(artist, renderer, *kl)
> File "/Library/Python/2.6/site-packages/matplotlib/figure.py", line
> 773, in draw
> for a in self.axes: a.draw(renderer)
> File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
> draw(artist, renderer, *kl)
> File "/Library/Python/2.6/site-packages/matplotlib/axes.py", line 1735,
> in draw
> a.draw(renderer)
> File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
> draw(artist, renderer, *kl)
> File "/Library/Python/2.6/site-packages/matplotlib/patches.py", line
> 298, in draw
> gc.set_foreground(self._edgecolor)
> File "/Library/Python/2.6/site-packages/matplotlib/backend_bases.py",
> line 628, in set_foreground
> self._rgb = colors.colorConverter.to_rgba(fg)
> File "/Library/Python/2.6/site-packages/matplotlib/colors.py", line
> 353, in to_rgba
> raise ValueError('to_rgba: Invalid rgba arg "%s"\n%s' % (str(arg), exc))
> ValueError: to_rgba: Invalid rgba arg "((1, 0, 0, 1), (0, 1, 0, 1))"
> need more than 2 values to unpack
>
>
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