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Add _repr_png_ and _repr_html_ to Colormap objects. #17888

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Merged
tacaswell merged 7 commits into from
Jul 12, 2020
Merged

Add _repr_png_ and _repr_html_ to Colormap objects. #17888

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1cfb18b
Created _repr_png_ and _repr_html_ for Colormap objects.
bdice Jul 11, 2020
d62cd55
Add a border to clarify the boundary of the image.
bdice Jul 11, 2020
d3ca7e2
Add tests for _repr_png_ and _repr_html_.
bdice Jul 11, 2020
34be66e
Added What's New entry.
bdice Jul 11, 2020
3da7fc4
Add PngInfo.
bdice Jul 11, 2020
a490278
Update PngInfo.
bdice Jul 11, 2020
9d46338
Enforce stricter tests for _repr_png_.
bdice Jul 12, 2020
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Add tests for _repr_png_ and _repr_html_.
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@bdice
bdice committed Jul 11, 2020
commit d3ca7e251846fa1f10ecd6b2ff8619fd6eee7a25
13 changes: 13 additions & 0 deletions lib/matplotlib/tests/test_colors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1135,3 +1135,16 @@ def test_hex_shorthand_notation():
def test_DivergingNorm_deprecated():
with pytest.warns(cbook.MatplotlibDeprecationWarning):
norm = mcolors.DivergingNorm(vcenter=0)


def test_repr_png():
cmap = plt.get_cmap('viridis')
png = cmap._repr_png_()
assert len(png) > 0
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def test_repr_html():
cmap = plt.get_cmap('viridis')
html = cmap._repr_html_()
assert len(html) > 0
assert cmap.name in html