Closed
Description
Bug report
legend(labelcolor="markerfacecolor") raises error when used with scatter()
Adding a legend with colored text using any of linecolor, markerfacecolor, or markeredgecolor as the values for the argument labelcolor with a scatter plot results in a TypeError: unhashable type: 'numpy.ndarray'.
Code for reproduction
import matplotlib.pyplot as plt
import numpy as np
fig, ax = plt.subplots()
ax.scatter(np.random.rand(500)-0.65, np.random.rand(500), label="First dataset")
ax.scatter(np.random.rand(500)-0.35, np.random.rand(500), label="Second dataset")
ax.legend(labelcolor="linecolor")
fig.savefig("/tmp/test.png")Actual outcome
Traceback (most recent call last):
File "test.py", line 16, in <module>
fig.savefig("/tmp/test.png")
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/figure.py", line 3005, in savefig
self.canvas.print_figure(fname, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/backends/backend_qt5agg.py", line 78, in print_figure
super().print_figure(*args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/backend_bases.py", line 2255, in print_figure
result = print_method(
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/backend_bases.py", line 1669, in wrapper
return func(*args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/backends/backend_agg.py", line 508, in print_png
FigureCanvasAgg.draw(self)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/backends/backend_agg.py", line 406, in draw
self.figure.draw(self.renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/artist.py", line 74, in draw_wrapper
result = draw(artist, renderer, *args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/artist.py", line 51, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/figure.py", line 2780, in draw
mimage._draw_list_compositing_images(
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/image.py", line 132, in _draw_list_compositing_images
a.draw(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/artist.py", line 51, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/_api/deprecation.py", line 431, in wrapper
return func(*inner_args, **inner_kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/axes/_base.py", line 2921, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/image.py", line 132, in _draw_list_compositing_images
a.draw(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/artist.py", line 51, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/legend.py", line 606, in draw
bbox = self._legend_box.get_window_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 352, in get_window_extent
w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 438, in get_extent_offsets
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 438, in <listcomp>
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 347, in get_extent
w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 474, in get_extent_offsets
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 474, in <listcomp>
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 347, in get_extent
w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 438, in get_extent_offsets
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 438, in <listcomp>
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 347, in get_extent
w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 474, in get_extent_offsets
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 474, in <listcomp>
whd_list = [c.get_extent(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/offsetbox.py", line 823, in get_extent
bbox, info, yd = self._text._get_layout(renderer)
File "/home/agude/bin/anaconda3/lib/python3.8/site-packages/matplotlib/text.py", line 294, in _get_layout
if key in self._cached:
TypeError: unhashable type: 'numpy.ndarray'
Expected outcome
The legend text should match the color of the points.
Matplotlib version
- Operating system: Ubuntu Linux (
Linux hostname 5.4.0-77-generic #86~18.04.1-Ubuntu SMP Fri Jun 18 01:23:22 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux) - Matplotlib version (
import matplotlib; print(matplotlib.__version__)): 3.4.2 - Matplotlib backend (
print(matplotlib.get_backend())): Qt5Agg - Python version: Python 3.8.10
- Other libraries: Numpy 1.20.2
Matplotlib is currently installed with pip install matplotlib==3.4.2 in a Conda install to force the most recent version... Yeah I know.