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Avoid duplicate cmap in image options. #6346

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Merged
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Apr 28, 2016
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Avoid duplicate cmap in image options. #6346

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2 changes: 1 addition & 1 deletion lib/matplotlib/backends/qt_editor/figureoptions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -137,7 +137,7 @@ def prepare_data(d, init):
for label in imagelabels:
image = imagedict[label]
cmap = image.get_cmap()
if cmap not in cm.cmap_d:
if cmap not in cm.cmap_d.values():
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would it be better to check that cmap.name not in cm.cmap_d?

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I thought someone could accidentally create a custom cmap with the same name as one in cmap_d (although it's a pretty theoretical risk and it'd make the combobox awkward anyways), so checking on cmap identity should be safer.

cmaps = [(cmap, cmap.name)] + cmaps
imagedata = [
('Label', label),
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