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ENH: make levels consistent and name responsive #43570

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Merged
merged 1 commit into from
Sep 14, 2021
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ENH: make levels consistent and name responsive #43570

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11 changes: 6 additions & 5 deletions pandas/io/formats/style.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1814,7 +1814,7 @@ def set_sticky(
self,
axis: Axis = 0,
pixel_size: int | None = None,
levels: list[int] | None = None,
levels: Level | list[Level] | None = None,
) -> Styler:
"""
Add CSS to permanently display the index or column headers in a scrolling frame.
Expand All @@ -1827,7 +1827,7 @@ def set_sticky(
Required to configure the width of index cells or the height of column
header cells when sticking a MultiIndex (or with a named Index).
Defaults to 75 and 25 respectively.
levels : list of int
levels : int, str, list, optional
If ``axis`` is a MultiIndex the specific levels to stick. If ``None`` will
stick all levels.

Expand Down Expand Up @@ -1891,11 +1891,12 @@ def set_sticky(
else:
# handle the MultiIndex case
range_idx = list(range(obj.nlevels))
levels = sorted(levels) if levels else range_idx
levels_: list[int] = refactor_levels(levels, obj) if levels else range_idx
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wouldn't object to your moving rfactor_levels to indexing (of course could be a different PR too)

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but later :->

levels_ = sorted(levels_)

if axis == 1:
styles = []
for i, level in enumerate(levels):
for i, level in enumerate(levels_):
styles.append(
{
"selector": f"thead tr:nth-child({level+1}) th",
Expand All @@ -1920,7 +1921,7 @@ def set_sticky(

else:
styles = []
for i, level in enumerate(levels):
for i, level in enumerate(levels_):
props_ = props + (
f"left:{i * pixel_size}px; "
f"min-width:{pixel_size}px; "
Expand Down
8 changes: 5 additions & 3 deletions pandas/tests/io/formats/style/test_html.py
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Original file line number Diff line number Diff line change
Expand Up @@ -365,11 +365,13 @@ def test_sticky_mi(styler_mi, index, columns):

@pytest.mark.parametrize("index", [False, True])
@pytest.mark.parametrize("columns", [False, True])
def test_sticky_levels(styler_mi, index, columns):
@pytest.mark.parametrize("levels", [[1], ["one"], "one"])
def test_sticky_levels(styler_mi, index, columns, levels):
styler_mi.index.names, styler_mi.columns.names = ["zero", "one"], ["zero", "one"]
if index:
styler_mi.set_sticky(axis=0, levels=[1])
styler_mi.set_sticky(axis=0, levels=levels)
if columns:
styler_mi.set_sticky(axis=1, levels=[1])
styler_mi.set_sticky(axis=1, levels=levels)

left_css = (
"#T_ {0} {{\n position: sticky;\n background-color: white;\n"
Expand Down