python - Shade legend line in matplotlib -

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i want shade around line in legend, in picture below.

enter image description here

i tried using 'hatch' following:

handles, labels = ax0.get_legend_handles_labels()  handles[0] = mpatches.patch(facecolor='red', edgecolor='red', alpha=1.0, linewidth=0, label="theory (mll)", hatch='-')  handles[i].set_facecolor('pink')  first_legend = ax0.legend(handles, labels, loc=0, frameon=0, borderpad=0.1)  ax = ax0.add_artist(first_legend)

but causes rectangle have multiple lines following:

enter image description here

you can plot 2 handles on top of 1 putting them in tuple (see bit handlertuple in guide: http://matplotlib.org/users/legend_guide.html). in addition that, line extend edge of patch, can use custom version of normal line handler marker_pad = 0.

from matplotlib import pyplot plt  import matplotlib.patches mpatches matplotlib.legend_handler import handlerline2d import numpy np  line, = plt.plot(range(10), color = 'red') patch = mpatches.patch(facecolor='pink', alpha=1.0, linewidth=0) plt.legend([(patch, line)], ["theory"], handler_map = {line : handlerline2d(marker_pad = 0)} ) plt.show()

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