def test_render_double(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(
["color: red; border: 1px", "color: blue; border: 2px"],
name=x.name)
s = Styler(df, uuid='AB').apply(style)
s.render()
def test_table_attributes(self):
attributes = 'class="foo" data-bar'
styler = Styler(self.df, table_attributes=attributes)
result = styler.render()
self.assertTrue('class="foo" data-bar' in result)
result = self.df.style.set_table_attributes(attributes).render()
self.assertTrue('class="foo" data-bar' in result)
def test_uuid(self):
styler = Styler(self.df, uuid="abc123")
result = styler.render()
self.assertTrue("abc123" in result)
styler = self.df.style
result = styler.set_uuid("aaa")
self.assertTrue(result is styler)
self.assertEqual(result.uuid, "aaa")
def test_caption(self):
styler = Styler(self.df, caption="foo")
result = styler.render()
self.assertTrue(all(["caption" in result, "foo" in result]))
styler = self.df.style
result = styler.set_caption("baz")
self.assertTrue(styler is result)
self.assertEqual(styler.caption, "baz")
def test_caption(self):
styler = Styler(self.df, caption='foo')
result = styler.render()
self.assertTrue(all(['caption' in result, 'foo' in result]))
styler = self.df.style
result = styler.set_caption('baz')
self.assertTrue(styler is result)
self.assertEqual(styler.caption, 'baz')
def test_uuid(self):
styler = Styler(self.df, uuid='abc123')
result = styler.render()
self.assertTrue('abc123' in result)
styler = self.df.style
result = styler.set_uuid('aaa')
self.assertTrue(result is styler)
self.assertEqual(result.uuid, 'aaa')
def test_table_styles(self):
style = [{"selector": "th", "props": [("foo", "bar")]}]
styler = Styler(self.df, table_styles=style)
result = " ".join(styler.render().split())
self.assertTrue("th { foo: bar; }" in result)
styler = self.df.style
result = styler.set_table_styles(style)
self.assertTrue(styler is result)
self.assertEqual(styler.table_styles, style)
def test_precision(self):
with pd.option_context('display.precision', 10):
s = Styler(self.df)
self.assertEqual(s.precision, 10)
s = Styler(self.df, precision=2)
self.assertEqual(s.precision, 2)
s2 = s.set_precision(4)
self.assertTrue(s is s2)
self.assertEqual(s.precision, 4)
def test_table_styles(self):
style = [{'selector': 'th', 'props': [('foo', 'bar')]}]
styler = Styler(self.df, table_styles=style)
result = ' '.join(styler.render().split())
self.assertTrue('th { foo: bar; }' in result)
styler = self.df.style
result = styler.set_table_styles(style)
self.assertTrue(styler is result)
self.assertEqual(styler.table_styles, style)
def configure_properties(self):
Styler.__init__(self, self.data)
self.applymap(styler_utils.center)
self.applymap(lambda x: 'padding: %s' % self.padding)
self.set_table_styles(default_table_styles)
self.set_properties(**{'border': '1px solid black'})
if self.preset:
self.apply_preset()
if self.auto_format:
self.value_formatter()
def test_nonunique_raises(self):
df = pd.DataFrame([[1, 2]], columns=['A', 'A'])
with tm.assertRaises(ValueError):
df.style
with tm.assertRaises(ValueError):
Styler(df)
def setUp(self):
np.random.seed(24)
self.s = DataFrame({'A': np.random.permutation(range(6))})
self.df = DataFrame({'A': [0, 1], 'B': np.random.randn(2)})
self.f = lambda x: x
self.g = lambda x: x
def h(x, foo='bar'):
return pd.Series(['color: %s' % foo], index=x.index, name=x.name)
self.h = h
self.styler = Styler(self.df)
self.attrs = pd.DataFrame({'A': ['color: red', 'color: blue']})
self.dataframes = [
self.df,
pd.DataFrame({'f': [1., 2.], 'o': ['a', 'b'],
'c': pd.Categorical(['a', 'b'])})
]
def setUp(self):
np.random.seed(24)
self.s = DataFrame({"A": np.random.permutation(range(6))})
self.df = DataFrame({"A": [0, 1], "B": np.random.randn(2)})
self.f = lambda x: x
self.g = lambda x: x
def h(x, foo="bar"):
return pd.Series(["color: %s" % foo], index=x.index, name=x.name)
self.h = h
self.styler = Styler(self.df)
self.attrs = pd.DataFrame({"A": ["color: red", "color: blue"]})
self.dataframes = [self.df, pd.DataFrame({"f": [1.0, 2.0], "o": ["a", "b"], "c": pd.Categorical(["a", "b"])})]
def test_from_custom_template(tmpdir):
p = tmpdir.mkdir("templates").join("myhtml.tpl")
p.write(
textwrap.dedent("""\
{% extends "html.tpl" %}
{% block table %}
<h1>{{ table_title|default("My Table") }}</h1>
{{ super() }}
{% endblock table %}"""))
result = Styler.from_custom_template(str(tmpdir.join('templates')),
'myhtml.tpl')
assert issubclass(result, Styler)
assert result.env is not Styler.env
assert result.template is not Styler.template
styler = result(pd.DataFrame({"A": [1, 2]}))
assert styler.render()
def apply_styling(self, df):
styler = Styler(df)
styler = styler.apply(highlight_rsquare, subset=["r_squared"])
return styler
def test_render(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red", "color: blue"], name=x.name)
s = Styler(df, uuid="AB").apply(style)
s.render()
class TestStyler(TestCase):
def setUp(self):
np.random.seed(24)
self.s = DataFrame({"A": np.random.permutation(range(6))})
self.df = DataFrame({"A": [0, 1], "B": np.random.randn(2)})
self.f = lambda x: x
self.g = lambda x: x
def h(x, foo="bar"):
return pd.Series(["color: %s" % foo], index=x.index, name=x.name)
self.h = h
self.styler = Styler(self.df)
self.attrs = pd.DataFrame({"A": ["color: red", "color: blue"]})
self.dataframes = [self.df, pd.DataFrame({"f": [1.0, 2.0], "o": ["a", "b"], "c": pd.Categorical(["a", "b"])})]
def test_init_non_pandas(self):
with tm.assertRaises(TypeError):
Styler([1, 2, 3])
def test_init_series(self):
result = Styler(pd.Series([1, 2]))
self.assertEqual(result.data.ndim, 2)
def test_repr_html_ok(self):
self.styler._repr_html_()
def test_update_ctx(self):
self.styler._update_ctx(self.attrs)
expected = {(0, 0): ["color: red"], (1, 0): ["color: blue"]}
self.assertEqual(self.styler.ctx, expected)
def test_update_ctx_flatten_multi(self):
attrs = DataFrame({"A": ["color: red; foo: bar", "color: blue; foo: baz"]})
self.styler._update_ctx(attrs)
expected = {(0, 0): ["color: red", " foo: bar"], (1, 0): ["color: blue", " foo: baz"]}
self.assertEqual(self.styler.ctx, expected)
def test_update_ctx_flatten_multi_traliing_semi(self):
attrs = DataFrame({"A": ["color: red; foo: bar;", "color: blue; foo: baz;"]})
self.styler._update_ctx(attrs)
expected = {(0, 0): ["color: red", " foo: bar"], (1, 0): ["color: blue", " foo: baz"]}
self.assertEqual(self.styler.ctx, expected)
def test_copy(self):
s2 = copy.copy(self.styler)
self.assertTrue(self.styler is not s2)
self.assertTrue(self.styler.ctx is s2.ctx) # shallow
self.assertTrue(self.styler._todo is s2._todo)
self.styler._update_ctx(self.attrs)
self.styler.highlight_max()
self.assertEqual(self.styler.ctx, s2.ctx)
self.assertEqual(self.styler._todo, s2._todo)
def test_deepcopy(self):
s2 = copy.deepcopy(self.styler)
self.assertTrue(self.styler is not s2)
self.assertTrue(self.styler.ctx is not s2.ctx)
self.assertTrue(self.styler._todo is not s2._todo)
self.styler._update_ctx(self.attrs)
self.styler.highlight_max()
self.assertNotEqual(self.styler.ctx, s2.ctx)
self.assertEqual(s2._todo, [])
self.assertNotEqual(self.styler._todo, s2._todo)
def test_clear(self):
s = self.df.style.highlight_max()._compute()
self.assertTrue(len(s.ctx) > 0)
self.assertTrue(len(s._todo) > 0)
s.clear()
self.assertTrue(len(s.ctx) == 0)
self.assertTrue(len(s._todo) == 0)
def test_render(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red", "color: blue"], name=x.name)
s = Styler(df, uuid="AB").apply(style)
s.render()
# it worked?
def test_render_double(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red; border: 1px", "color: blue; border: 2px"], name=x.name)
s = Styler(df, uuid="AB").apply(style)
s.render()
# it worked?
def test_set_properties(self):
df = pd.DataFrame({"A": [0, 1]})
result = df.style.set_properties(color="white", size="10px")._compute().ctx
# order is deterministic
v = ["color: white", "size: 10px"]
expected = {(0, 0): v, (1, 0): v}
self.assertEqual(result.keys(), expected.keys())
for v1, v2 in zip(result.values(), expected.values()):
self.assertEqual(sorted(v1), sorted(v2))
def test_set_properties_subset(self):
df = pd.DataFrame({"A": [0, 1]})
result = df.style.set_properties(subset=pd.IndexSlice[0, "A"], color="white")._compute().ctx
expected = {(0, 0): ["color: white"]}
self.assertEqual(result, expected)
def test_empty_index_name_doesnt_display(self):
# https://github.com/pydata/pandas/pull/12090#issuecomment-180695902
df = pd.DataFrame({"A": [1, 2], "B": [3, 4], "C": [5, 6]})
result = df.style._translate()
expected = [
[
{"class": "blank", "type": "th", "value": ""},
{"class": "col_heading level0 col0", "display_value": "A", "type": "th", "value": "A"},
{"class": "col_heading level0 col1", "display_value": "B", "type": "th", "value": "B"},
{"class": "col_heading level0 col2", "display_value": "C", "type": "th", "value": "C"},
]
]
self.assertEqual(result["head"], expected)
def test_index_name(self):
# https://github.com/pydata/pandas/issues/11655
df = pd.DataFrame({"A": [1, 2], "B": [3, 4], "C": [5, 6]})
result = df.set_index("A").style._translate()
expected = [
[
{"class": "blank", "type": "th", "value": ""},
{"class": "col_heading level0 col0", "type": "th", "value": "B", "display_value": "B"},
{"class": "col_heading level0 col1", "type": "th", "value": "C", "display_value": "C"},
],
[
{"class": "col_heading level2 col0", "type": "th", "value": "A"},
{"class": "blank", "type": "th", "value": ""},
{"class": "blank", "type": "th", "value": ""},
],
]
self.assertEqual(result["head"], expected)
def test_multiindex_name(self):
# https://github.com/pydata/pandas/issues/11655
df = pd.DataFrame({"A": [1, 2], "B": [3, 4], "C": [5, 6]})
result = df.set_index(["A", "B"]).style._translate()
expected = [
[
{"class": "blank", "type": "th", "value": ""},
{"class": "blank", "type": "th", "value": ""},
{"class": "col_heading level0 col0", "type": "th", "value": "C", "display_value": "C"},
],
[
{"class": "col_heading level2 col0", "type": "th", "value": "A"},
{"class": "col_heading level2 col1", "type": "th", "value": "B"},
{"class": "blank", "type": "th", "value": ""},
],
]
self.assertEqual(result["head"], expected)
def test_numeric_columns(self):
# https://github.com/pydata/pandas/issues/12125
# smoke test for _translate
df = pd.DataFrame({0: [1, 2, 3]})
df.style._translate()
def test_apply_axis(self):
df = pd.DataFrame({"A": [0, 0], "B": [1, 1]})
f = lambda x: ["val: %s" % x.max() for v in x]
result = df.style.apply(f, axis=1)
self.assertEqual(len(result._todo), 1)
self.assertEqual(len(result.ctx), 0)
result._compute()
expected = {(0, 0): ["val: 1"], (0, 1): ["val: 1"], (1, 0): ["val: 1"], (1, 1): ["val: 1"]}
self.assertEqual(result.ctx, expected)
result = df.style.apply(f, axis=0)
expected = {(0, 0): ["val: 0"], (0, 1): ["val: 1"], (1, 0): ["val: 0"], (1, 1): ["val: 1"]}
result._compute()
self.assertEqual(result.ctx, expected)
result = df.style.apply(f) # default
result._compute()
self.assertEqual(result.ctx, expected)
def test_apply_subset(self):
axes = [0, 1]
slices = [
pd.IndexSlice[:],
pd.IndexSlice[:, ["A"]],
pd.IndexSlice[[1], :],
pd.IndexSlice[[1], ["A"]],
pd.IndexSlice[:2, ["A", "B"]],
]
for ax in axes:
for slice_ in slices:
result = self.df.style.apply(self.h, axis=ax, subset=slice_, foo="baz")._compute().ctx
expected = dict(
((r, c), ["color: baz"])
for r, row in enumerate(self.df.index)
for c, col in enumerate(self.df.columns)
if row in self.df.loc[slice_].index and col in self.df.loc[slice_].columns
)
self.assertEqual(result, expected)
def test_applymap_subset(self):
def f(x):
return "foo: bar"
slices = [
pd.IndexSlice[:],
pd.IndexSlice[:, ["A"]],
pd.IndexSlice[[1], :],
pd.IndexSlice[[1], ["A"]],
pd.IndexSlice[:2, ["A", "B"]],
]
for slice_ in slices:
result = self.df.style.applymap(f, subset=slice_)._compute().ctx
expected = dict(
((r, c), ["foo: bar"])
for r, row in enumerate(self.df.index)
for c, col in enumerate(self.df.columns)
if row in self.df.loc[slice_].index and col in self.df.loc[slice_].columns
)
self.assertEqual(result, expected)
def test_empty(self):
df = pd.DataFrame({"A": [1, 0]})
s = df.style
s.ctx = {(0, 0): ["color: red"], (1, 0): [""]}
result = s._translate()["cellstyle"]
expected = [
{"props": [["color", " red"]], "selector": "row0_col0"},
{"props": [["", ""]], "selector": "row1_col0"},
]
self.assertEqual(result, expected)
def test_bar(self):
df = pd.DataFrame({"A": [0, 1, 2]})
result = df.style.bar()._compute().ctx
expected = {
(0, 0): ["width: 10em", " height: 80%"],
(1, 0): [
"width: 10em",
" height: 80%",
"background: linear-gradient(" "90deg,#d65f5f 50.0%, transparent 0%)",
],
(2, 0): [
"width: 10em",
" height: 80%",
"background: linear-gradient(" "90deg,#d65f5f 100.0%, transparent 0%)",
],
}
self.assertEqual(result, expected)
result = df.style.bar(color="red", width=50)._compute().ctx
expected = {
(0, 0): ["width: 10em", " height: 80%"],
(1, 0): ["width: 10em", " height: 80%", "background: linear-gradient(" "90deg,red 25.0%, transparent 0%)"],
(2, 0): ["width: 10em", " height: 80%", "background: linear-gradient(" "90deg,red 50.0%, transparent 0%)"],
}
self.assertEqual(result, expected)
df["C"] = ["a"] * len(df)
result = df.style.bar(color="red", width=50)._compute().ctx
self.assertEqual(result, expected)
df["C"] = df["C"].astype("category")
result = df.style.bar(color="red", width=50)._compute().ctx
self.assertEqual(result, expected)
def test_bar_0points(self):
df = pd.DataFrame([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
result = df.style.bar()._compute().ctx
expected = {
(0, 0): ["width: 10em", " height: 80%"],
(0, 1): ["width: 10em", " height: 80%"],
(0, 2): ["width: 10em", " height: 80%"],
(1, 0): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%," " transparent 0%)",
],
(1, 1): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%," " transparent 0%)",
],
(1, 2): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%," " transparent 0%)",
],
(2, 0): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
(2, 1): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
(2, 2): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
}
self.assertEqual(result, expected)
result = df.style.bar(axis=1)._compute().ctx
expected = {
(0, 0): ["width: 10em", " height: 80%"],
(0, 1): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%," " transparent 0%)",
],
(0, 2): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
(1, 0): ["width: 10em", " height: 80%"],
(1, 1): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%" ", transparent 0%)",
],
(1, 2): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
(2, 0): ["width: 10em", " height: 80%"],
(2, 1): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 50.0%" ", transparent 0%)",
],
(2, 2): [
"width: 10em",
" height: 80%",
"background: linear-gradient(90deg,#d65f5f 100.0%" ", transparent 0%)",
],
}
self.assertEqual(result, expected)
def test_highlight_null(self, null_color="red"):
df = pd.DataFrame({"A": [0, np.nan]})
result = df.style.highlight_null()._compute().ctx
expected = {(0, 0): [""], (1, 0): ["background-color: red"]}
self.assertEqual(result, expected)
def test_nonunique_raises(self):
df = pd.DataFrame([[1, 2]], columns=["A", "A"])
with tm.assertRaises(ValueError):
df.style
with tm.assertRaises(ValueError):
Styler(df)
def test_caption(self):
styler = Styler(self.df, caption="foo")
result = styler.render()
self.assertTrue(all(["caption" in result, "foo" in result]))
styler = self.df.style
result = styler.set_caption("baz")
self.assertTrue(styler is result)
self.assertEqual(styler.caption, "baz")
def test_uuid(self):
styler = Styler(self.df, uuid="abc123")
result = styler.render()
self.assertTrue("abc123" in result)
styler = self.df.style
result = styler.set_uuid("aaa")
self.assertTrue(result is styler)
self.assertEqual(result.uuid, "aaa")
def test_table_styles(self):
style = [{"selector": "th", "props": [("foo", "bar")]}]
styler = Styler(self.df, table_styles=style)
result = " ".join(styler.render().split())
self.assertTrue("th { foo: bar; }" in result)
styler = self.df.style
result = styler.set_table_styles(style)
self.assertTrue(styler is result)
self.assertEqual(styler.table_styles, style)
def test_table_attributes(self):
attributes = 'class="foo" data-bar'
styler = Styler(self.df, table_attributes=attributes)
result = styler.render()
self.assertTrue('class="foo" data-bar' in result)
result = self.df.style.set_table_attributes(attributes).render()
self.assertTrue('class="foo" data-bar' in result)
def test_precision(self):
with pd.option_context("display.precision", 10):
s = Styler(self.df)
self.assertEqual(s.precision, 10)
s = Styler(self.df, precision=2)
self.assertEqual(s.precision, 2)
s2 = s.set_precision(4)
self.assertTrue(s is s2)
self.assertEqual(s.precision, 4)
def test_apply_none(self):
def f(x):
return pd.DataFrame(np.where(x == x.max(), "color: red", ""), index=x.index, columns=x.columns)
result = pd.DataFrame([[1, 2], [3, 4]]).style.apply(f, axis=None)._compute().ctx
self.assertEqual(result[(1, 1)], ["color: red"])
def test_trim(self):
result = self.df.style.render() # trim=True
self.assertEqual(result.count("#"), 0)
result = self.df.style.highlight_max().render()
self.assertEqual(result.count("#"), len(self.df.columns))
def test_highlight_max(self):
df = pd.DataFrame([[1, 2], [3, 4]], columns=["A", "B"])
# max(df) = min(-df)
for max_ in [True, False]:
if max_:
attr = "highlight_max"
else:
df = -df
attr = "highlight_min"
result = getattr(df.style, attr)()._compute().ctx
self.assertEqual(result[(1, 1)], ["background-color: yellow"])
result = getattr(df.style, attr)(color="green")._compute().ctx
self.assertEqual(result[(1, 1)], ["background-color: green"])
result = getattr(df.style, attr)(subset="A")._compute().ctx
self.assertEqual(result[(1, 0)], ["background-color: yellow"])
result = getattr(df.style, attr)(axis=0)._compute().ctx
expected = {
(1, 0): ["background-color: yellow"],
(1, 1): ["background-color: yellow"],
(0, 1): [""],
(0, 0): [""],
}
self.assertEqual(result, expected)
result = getattr(df.style, attr)(axis=1)._compute().ctx
expected = {
(0, 1): ["background-color: yellow"],
(1, 1): ["background-color: yellow"],
(0, 0): [""],
(1, 0): [""],
}
self.assertEqual(result, expected)
# separate since we cant negate the strs
df["C"] = ["a", "b"]
result = df.style.highlight_max()._compute().ctx
expected = {(1, 1): ["background-color: yellow"]}
result = df.style.highlight_min()._compute().ctx
expected = {(0, 0): ["background-color: yellow"]}
def test_export(self):
f = lambda x: "color: red" if x > 0 else "color: blue"
g = lambda x, y, z: "color: %s" if x > 0 else "color: %s" % z
style1 = self.styler
style1.applymap(f).applymap(g, y="a", z="b").highlight_max()
result = style1.export()
style2 = self.df.style
style2.use(result)
self.assertEqual(style1._todo, style2._todo)
style2.render()
def test_display_format(self):
df = pd.DataFrame(np.random.random(size=(2, 2)))
ctx = df.style.format("{:0.1f}")._translate()
self.assertTrue(all(["display_value" in c for c in row] for row in ctx["body"]))
self.assertTrue(all([len(c["display_value"]) <= 3 for c in row[1:]] for row in ctx["body"]))
self.assertTrue(len(ctx["body"][0][1]["display_value"].lstrip("-")) <= 3)
def test_display_format_raises(self):
df = pd.DataFrame(np.random.randn(2, 2))
with tm.assertRaises(TypeError):
df.style.format(5)
with tm.assertRaises(TypeError):
df.style.format(True)
def test_display_subset(self):
df = pd.DataFrame([[0.1234, 0.1234], [1.1234, 1.1234]], columns=["a", "b"])
ctx = df.style.format({"a": "{:0.1f}", "b": "{0:.2%}"}, subset=pd.IndexSlice[0, :])._translate()
expected = "0.1"
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][1][1]["display_value"], "1.1234")
self.assertEqual(ctx["body"][0][2]["display_value"], "12.34%")
raw_11 = "1.1234"
ctx = df.style.format("{:0.1f}", subset=pd.IndexSlice[0, :])._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][1][1]["display_value"], raw_11)
ctx = df.style.format("{:0.1f}", subset=pd.IndexSlice[0, :])._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][1][1]["display_value"], raw_11)
ctx = df.style.format("{:0.1f}", subset=pd.IndexSlice["a"])._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][0][2]["display_value"], "0.1234")
ctx = df.style.format("{:0.1f}", subset=pd.IndexSlice[0, "a"])._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][1][1]["display_value"], raw_11)
ctx = df.style.format("{:0.1f}", subset=pd.IndexSlice[[0, 1], ["a"]])._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], expected)
self.assertEqual(ctx["body"][1][1]["display_value"], "1.1")
self.assertEqual(ctx["body"][0][2]["display_value"], "0.1234")
self.assertEqual(ctx["body"][1][2]["display_value"], "1.1234")
def test_display_dict(self):
df = pd.DataFrame([[0.1234, 0.1234], [1.1234, 1.1234]], columns=["a", "b"])
ctx = df.style.format({"a": "{:0.1f}", "b": "{0:.2%}"})._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], "0.1")
self.assertEqual(ctx["body"][0][2]["display_value"], "12.34%")
df["c"] = ["aaa", "bbb"]
ctx = df.style.format({"a": "{:0.1f}", "c": str.upper})._translate()
self.assertEqual(ctx["body"][0][1]["display_value"], "0.1")
self.assertEqual(ctx["body"][0][3]["display_value"], "AAA")
def test_bad_apply_shape(self):
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: "x", subset=pd.IndexSlice[[0, 1], :])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: [""], subset=pd.IndexSlice[[0, 1], :])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ["", "", "", ""])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ["", "", ""], subset=1)
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ["", "", ""], axis=1)
def test_apply_bad_return(self):
def f(x):
return ""
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(TypeError):
df.style._apply(f, axis=None)
def test_apply_bad_labels(self):
def f(x):
return pd.DataFrame(index=[1, 2], columns=["a", "b"])
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(ValueError):
df.style._apply(f, axis=None)
class TestStyler(TestCase):
def setUp(self):
np.random.seed(24)
self.s = DataFrame({'A': np.random.permutation(range(6))})
self.df = DataFrame({'A': [0, 1], 'B': np.random.randn(2)})
self.f = lambda x: x
self.g = lambda x: x
def h(x, foo='bar'):
return pd.Series(['color: %s' % foo], index=x.index, name=x.name)
self.h = h
self.styler = Styler(self.df)
self.attrs = pd.DataFrame({'A': ['color: red', 'color: blue']})
self.dataframes = [
self.df,
pd.DataFrame({'f': [1., 2.], 'o': ['a', 'b'],
'c': pd.Categorical(['a', 'b'])})
]
def test_init_non_pandas(self):
with tm.assertRaises(TypeError):
Styler([1, 2, 3])
def test_init_series(self):
result = Styler(pd.Series([1, 2]))
self.assertEqual(result.data.ndim, 2)
def test_repr_html_ok(self):
self.styler._repr_html_()
def test_update_ctx(self):
self.styler._update_ctx(self.attrs)
expected = {(0, 0): ['color: red'],
(1, 0): ['color: blue']}
self.assertEqual(self.styler.ctx, expected)
def test_update_ctx_flatten_multi(self):
attrs = DataFrame({"A": ['color: red; foo: bar',
'color: blue; foo: baz']})
self.styler._update_ctx(attrs)
expected = {(0, 0): ['color: red', ' foo: bar'],
(1, 0): ['color: blue', ' foo: baz']}
self.assertEqual(self.styler.ctx, expected)
def test_update_ctx_flatten_multi_traliing_semi(self):
attrs = DataFrame({"A": ['color: red; foo: bar;',
'color: blue; foo: baz;']})
self.styler._update_ctx(attrs)
expected = {(0, 0): ['color: red', ' foo: bar'],
(1, 0): ['color: blue', ' foo: baz']}
self.assertEqual(self.styler.ctx, expected)
def test_copy(self):
s2 = copy.copy(self.styler)
self.assertTrue(self.styler is not s2)
self.assertTrue(self.styler.ctx is s2.ctx) # shallow
self.assertTrue(self.styler._todo is s2._todo)
self.styler._update_ctx(self.attrs)
self.styler.highlight_max()
self.assertEqual(self.styler.ctx, s2.ctx)
self.assertEqual(self.styler._todo, s2._todo)
def test_deepcopy(self):
s2 = copy.deepcopy(self.styler)
self.assertTrue(self.styler is not s2)
self.assertTrue(self.styler.ctx is not s2.ctx)
self.assertTrue(self.styler._todo is not s2._todo)
self.styler._update_ctx(self.attrs)
self.styler.highlight_max()
self.assertNotEqual(self.styler.ctx, s2.ctx)
self.assertEqual(s2._todo, [])
self.assertNotEqual(self.styler._todo, s2._todo)
def test_clear(self):
s = self.df.style.highlight_max()._compute()
self.assertTrue(len(s.ctx) > 0)
self.assertTrue(len(s._todo) > 0)
s.clear()
self.assertTrue(len(s.ctx) == 0)
self.assertTrue(len(s._todo) == 0)
def test_render(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red", "color: blue"], name=x.name)
s = Styler(df, uuid='AB').apply(style)
s.render()
# it worked?
def test_render_double(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red; border: 1px",
"color: blue; border: 2px"], name=x.name)
s = Styler(df, uuid='AB').apply(style)
s.render()
# it worked?
def test_set_properties(self):
df = pd.DataFrame({"A": [0, 1]})
result = df.style.set_properties(color='white',
size='10px')._compute().ctx
# order is deterministic
v = ["color: white", "size: 10px"]
expected = {(0, 0): v, (1, 0): v}
self.assertEqual(result.keys(), expected.keys())
for v1, v2 in zip(result.values(), expected.values()):
self.assertEqual(sorted(v1), sorted(v2))
def test_set_properties_subset(self):
df = pd.DataFrame({'A': [0, 1]})
result = df.style.set_properties(subset=pd.IndexSlice[0, 'A'],
color='white')._compute().ctx
expected = {(0, 0): ['color: white']}
self.assertEqual(result, expected)
def test_empty_index_name_doesnt_display(self):
# https://github.com/pandas-dev/pandas/pull/12090#issuecomment-180695902
df = pd.DataFrame({'A': [1, 2], 'B': [3, 4], 'C': [5, 6]})
result = df.style._translate()
expected = [[{'class': 'blank level0', 'type': 'th', 'value': '',
'is_visible': True, 'display_value': ''},
{'class': 'col_heading level0 col0',
'display_value': 'A',
'type': 'th',
'value': 'A',
'is_visible': True,
'attributes': ["colspan=1"],
},
{'class': 'col_heading level0 col1',
'display_value': 'B',
'type': 'th',
'value': 'B',
'is_visible': True,
'attributes': ["colspan=1"],
},
{'class': 'col_heading level0 col2',
'display_value': 'C',
'type': 'th',
'value': 'C',
'is_visible': True,
'attributes': ["colspan=1"],
}]]
self.assertEqual(result['head'], expected)
def test_index_name(self):
# https://github.com/pandas-dev/pandas/issues/11655
df = pd.DataFrame({'A': [1, 2], 'B': [3, 4], 'C': [5, 6]})
result = df.set_index('A').style._translate()
expected = [[{'class': 'blank level0', 'type': 'th', 'value': '',
'display_value': '', 'is_visible': True},
{'class': 'col_heading level0 col0', 'type': 'th',
'value': 'B', 'display_value': 'B',
'is_visible': True, 'attributes': ['colspan=1']},
{'class': 'col_heading level0 col1', 'type': 'th',
'value': 'C', 'display_value': 'C',
'is_visible': True, 'attributes': ['colspan=1']}],
[{'class': 'index_name level0', 'type': 'th',
'value': 'A'},
{'class': 'blank', 'type': 'th', 'value': ''},
{'class': 'blank', 'type': 'th', 'value': ''}]]
self.assertEqual(result['head'], expected)
def test_multiindex_name(self):
# https://github.com/pandas-dev/pandas/issues/11655
df = pd.DataFrame({'A': [1, 2], 'B': [3, 4], 'C': [5, 6]})
result = df.set_index(['A', 'B']).style._translate()
expected = [[
{'class': 'blank', 'type': 'th', 'value': '',
'display_value': '', 'is_visible': True},
{'class': 'blank level0', 'type': 'th', 'value': '',
'display_value': '', 'is_visible': True},
{'class': 'col_heading level0 col0', 'type': 'th',
'value': 'C', 'display_value': 'C',
'is_visible': True, 'attributes': ['colspan=1'],
}],
[{'class': 'index_name level0', 'type': 'th',
'value': 'A'},
{'class': 'index_name level1', 'type': 'th',
'value': 'B'},
{'class': 'blank', 'type': 'th', 'value': ''}]]
self.assertEqual(result['head'], expected)
def test_numeric_columns(self):
# https://github.com/pandas-dev/pandas/issues/12125
# smoke test for _translate
df = pd.DataFrame({0: [1, 2, 3]})
df.style._translate()
def test_apply_axis(self):
df = pd.DataFrame({'A': [0, 0], 'B': [1, 1]})
f = lambda x: ['val: %s' % x.max() for v in x]
result = df.style.apply(f, axis=1)
self.assertEqual(len(result._todo), 1)
self.assertEqual(len(result.ctx), 0)
result._compute()
expected = {(0, 0): ['val: 1'], (0, 1): ['val: 1'],
(1, 0): ['val: 1'], (1, 1): ['val: 1']}
self.assertEqual(result.ctx, expected)
result = df.style.apply(f, axis=0)
expected = {(0, 0): ['val: 0'], (0, 1): ['val: 1'],
(1, 0): ['val: 0'], (1, 1): ['val: 1']}
result._compute()
self.assertEqual(result.ctx, expected)
result = df.style.apply(f) # default
result._compute()
self.assertEqual(result.ctx, expected)
def test_apply_subset(self):
axes = [0, 1]
slices = [pd.IndexSlice[:], pd.IndexSlice[:, ['A']],
pd.IndexSlice[[1], :], pd.IndexSlice[[1], ['A']],
pd.IndexSlice[:2, ['A', 'B']]]
for ax in axes:
for slice_ in slices:
result = self.df.style.apply(self.h, axis=ax, subset=slice_,
foo='baz')._compute().ctx
expected = dict(((r, c), ['color: baz'])
for r, row in enumerate(self.df.index)
for c, col in enumerate(self.df.columns)
if row in self.df.loc[slice_].index and
col in self.df.loc[slice_].columns)
self.assertEqual(result, expected)
def test_applymap_subset(self):
def f(x):
return 'foo: bar'
slices = [pd.IndexSlice[:], pd.IndexSlice[:, ['A']],
pd.IndexSlice[[1], :], pd.IndexSlice[[1], ['A']],
pd.IndexSlice[:2, ['A', 'B']]]
for slice_ in slices:
result = self.df.style.applymap(f, subset=slice_)._compute().ctx
expected = dict(((r, c), ['foo: bar'])
for r, row in enumerate(self.df.index)
for c, col in enumerate(self.df.columns)
if row in self.df.loc[slice_].index and
col in self.df.loc[slice_].columns)
self.assertEqual(result, expected)
def test_empty(self):
df = pd.DataFrame({'A': [1, 0]})
s = df.style
s.ctx = {(0, 0): ['color: red'],
(1, 0): ['']}
result = s._translate()['cellstyle']
expected = [{'props': [['color', ' red']], 'selector': 'row0_col0'},
{'props': [['', '']], 'selector': 'row1_col0'}]
self.assertEqual(result, expected)
def test_bar(self):
df = pd.DataFrame({'A': [0, 1, 2]})
result = df.style.bar()._compute().ctx
expected = {
(0, 0): ['width: 10em', ' height: 80%'],
(1, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient('
'90deg,#d65f5f 50.0%, transparent 0%)'],
(2, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient('
'90deg,#d65f5f 100.0%, transparent 0%)']
}
self.assertEqual(result, expected)
result = df.style.bar(color='red', width=50)._compute().ctx
expected = {
(0, 0): ['width: 10em', ' height: 80%'],
(1, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient('
'90deg,red 25.0%, transparent 0%)'],
(2, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient('
'90deg,red 50.0%, transparent 0%)']
}
self.assertEqual(result, expected)
df['C'] = ['a'] * len(df)
result = df.style.bar(color='red', width=50)._compute().ctx
self.assertEqual(result, expected)
df['C'] = df['C'].astype('category')
result = df.style.bar(color='red', width=50)._compute().ctx
self.assertEqual(result, expected)
def test_bar_0points(self):
df = pd.DataFrame([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
result = df.style.bar()._compute().ctx
expected = {(0, 0): ['width: 10em', ' height: 80%'],
(0, 1): ['width: 10em', ' height: 80%'],
(0, 2): ['width: 10em', ' height: 80%'],
(1, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%,'
' transparent 0%)'],
(1, 1): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%,'
' transparent 0%)'],
(1, 2): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%,'
' transparent 0%)'],
(2, 0): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)'],
(2, 1): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)'],
(2, 2): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)']}
self.assertEqual(result, expected)
result = df.style.bar(axis=1)._compute().ctx
expected = {(0, 0): ['width: 10em', ' height: 80%'],
(0, 1): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%,'
' transparent 0%)'],
(0, 2): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)'],
(1, 0): ['width: 10em', ' height: 80%'],
(1, 1): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%'
', transparent 0%)'],
(1, 2): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)'],
(2, 0): ['width: 10em', ' height: 80%'],
(2, 1): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 50.0%'
', transparent 0%)'],
(2, 2): ['width: 10em', ' height: 80%',
'background: linear-gradient(90deg,#d65f5f 100.0%'
', transparent 0%)']}
self.assertEqual(result, expected)
def test_highlight_null(self, null_color='red'):
df = pd.DataFrame({'A': [0, np.nan]})
result = df.style.highlight_null()._compute().ctx
expected = {(0, 0): [''],
(1, 0): ['background-color: red']}
self.assertEqual(result, expected)
def test_nonunique_raises(self):
df = pd.DataFrame([[1, 2]], columns=['A', 'A'])
with tm.assertRaises(ValueError):
df.style
with tm.assertRaises(ValueError):
Styler(df)
def test_caption(self):
styler = Styler(self.df, caption='foo')
result = styler.render()
self.assertTrue(all(['caption' in result, 'foo' in result]))
styler = self.df.style
result = styler.set_caption('baz')
self.assertTrue(styler is result)
self.assertEqual(styler.caption, 'baz')
def test_uuid(self):
styler = Styler(self.df, uuid='abc123')
result = styler.render()
self.assertTrue('abc123' in result)
styler = self.df.style
result = styler.set_uuid('aaa')
self.assertTrue(result is styler)
self.assertEqual(result.uuid, 'aaa')
def test_table_styles(self):
style = [{'selector': 'th', 'props': [('foo', 'bar')]}]
styler = Styler(self.df, table_styles=style)
result = ' '.join(styler.render().split())
self.assertTrue('th { foo: bar; }' in result)
styler = self.df.style
result = styler.set_table_styles(style)
self.assertTrue(styler is result)
self.assertEqual(styler.table_styles, style)
def test_table_attributes(self):
attributes = 'class="foo" data-bar'
styler = Styler(self.df, table_attributes=attributes)
result = styler.render()
self.assertTrue('class="foo" data-bar' in result)
result = self.df.style.set_table_attributes(attributes).render()
self.assertTrue('class="foo" data-bar' in result)
def test_precision(self):
with pd.option_context('display.precision', 10):
s = Styler(self.df)
self.assertEqual(s.precision, 10)
s = Styler(self.df, precision=2)
self.assertEqual(s.precision, 2)
s2 = s.set_precision(4)
self.assertTrue(s is s2)
self.assertEqual(s.precision, 4)
def test_apply_none(self):
def f(x):
return pd.DataFrame(np.where(x == x.max(), 'color: red', ''),
index=x.index, columns=x.columns)
result = (pd.DataFrame([[1, 2], [3, 4]])
.style.apply(f, axis=None)._compute().ctx)
self.assertEqual(result[(1, 1)], ['color: red'])
def test_trim(self):
result = self.df.style.render() # trim=True
self.assertEqual(result.count('#'), 0)
result = self.df.style.highlight_max().render()
self.assertEqual(result.count('#'), len(self.df.columns))
def test_highlight_max(self):
df = pd.DataFrame([[1, 2], [3, 4]], columns=['A', 'B'])
# max(df) = min(-df)
for max_ in [True, False]:
if max_:
attr = 'highlight_max'
else:
df = -df
attr = 'highlight_min'
result = getattr(df.style, attr)()._compute().ctx
self.assertEqual(result[(1, 1)], ['background-color: yellow'])
result = getattr(df.style, attr)(color='green')._compute().ctx
self.assertEqual(result[(1, 1)], ['background-color: green'])
result = getattr(df.style, attr)(subset='A')._compute().ctx
self.assertEqual(result[(1, 0)], ['background-color: yellow'])
result = getattr(df.style, attr)(axis=0)._compute().ctx
expected = {(1, 0): ['background-color: yellow'],
(1, 1): ['background-color: yellow'],
(0, 1): [''], (0, 0): ['']}
self.assertEqual(result, expected)
result = getattr(df.style, attr)(axis=1)._compute().ctx
expected = {(0, 1): ['background-color: yellow'],
(1, 1): ['background-color: yellow'],
(0, 0): [''], (1, 0): ['']}
self.assertEqual(result, expected)
# separate since we cant negate the strs
df['C'] = ['a', 'b']
result = df.style.highlight_max()._compute().ctx
expected = {(1, 1): ['background-color: yellow']}
result = df.style.highlight_min()._compute().ctx
expected = {(0, 0): ['background-color: yellow']}
def test_export(self):
f = lambda x: 'color: red' if x > 0 else 'color: blue'
g = lambda x, y, z: 'color: %s' if x > 0 else 'color: %s' % z
style1 = self.styler
style1.applymap(f)\
.applymap(g, y='a', z='b')\
.highlight_max()
result = style1.export()
style2 = self.df.style
style2.use(result)
self.assertEqual(style1._todo, style2._todo)
style2.render()
def test_display_format(self):
df = pd.DataFrame(np.random.random(size=(2, 2)))
ctx = df.style.format("{:0.1f}")._translate()
self.assertTrue(all(['display_value' in c for c in row]
for row in ctx['body']))
self.assertTrue(all([len(c['display_value']) <= 3 for c in row[1:]]
for row in ctx['body']))
self.assertTrue(
len(ctx['body'][0][1]['display_value'].lstrip('-')) <= 3)
def test_display_format_raises(self):
df = pd.DataFrame(np.random.randn(2, 2))
with tm.assertRaises(TypeError):
df.style.format(5)
with tm.assertRaises(TypeError):
df.style.format(True)
def test_display_subset(self):
df = pd.DataFrame([[.1234, .1234], [1.1234, 1.1234]],
columns=['a', 'b'])
ctx = df.style.format({"a": "{:0.1f}", "b": "{0:.2%}"},
subset=pd.IndexSlice[0, :])._translate()
expected = '0.1'
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][1][1]['display_value'], '1.1234')
self.assertEqual(ctx['body'][0][2]['display_value'], '12.34%')
raw_11 = '1.1234'
ctx = df.style.format("{:0.1f}",
subset=pd.IndexSlice[0, :])._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][1][1]['display_value'], raw_11)
ctx = df.style.format("{:0.1f}",
subset=pd.IndexSlice[0, :])._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][1][1]['display_value'], raw_11)
ctx = df.style.format("{:0.1f}",
subset=pd.IndexSlice['a'])._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][0][2]['display_value'], '0.1234')
ctx = df.style.format("{:0.1f}",
subset=pd.IndexSlice[0, 'a'])._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][1][1]['display_value'], raw_11)
ctx = df.style.format("{:0.1f}",
subset=pd.IndexSlice[[0, 1], ['a']])._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], expected)
self.assertEqual(ctx['body'][1][1]['display_value'], '1.1')
self.assertEqual(ctx['body'][0][2]['display_value'], '0.1234')
self.assertEqual(ctx['body'][1][2]['display_value'], '1.1234')
def test_display_dict(self):
df = pd.DataFrame([[.1234, .1234], [1.1234, 1.1234]],
columns=['a', 'b'])
ctx = df.style.format({"a": "{:0.1f}", "b": "{0:.2%}"})._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], '0.1')
self.assertEqual(ctx['body'][0][2]['display_value'], '12.34%')
df['c'] = ['aaa', 'bbb']
ctx = df.style.format({"a": "{:0.1f}", "c": str.upper})._translate()
self.assertEqual(ctx['body'][0][1]['display_value'], '0.1')
self.assertEqual(ctx['body'][0][3]['display_value'], 'AAA')
def test_bad_apply_shape(self):
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: 'x', subset=pd.IndexSlice[[0, 1], :])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: [''], subset=pd.IndexSlice[[0, 1], :])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ['', '', '', ''])
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ['', '', ''], subset=1)
with tm.assertRaises(ValueError):
df.style._apply(lambda x: ['', '', ''], axis=1)
def test_apply_bad_return(self):
def f(x):
return ''
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(TypeError):
df.style._apply(f, axis=None)
def test_apply_bad_labels(self):
def f(x):
return pd.DataFrame(index=[1, 2], columns=['a', 'b'])
df = pd.DataFrame([[1, 2], [3, 4]])
with tm.assertRaises(ValueError):
df.style._apply(f, axis=None)
def test_get_level_lengths(self):
index = pd.MultiIndex.from_product([['a', 'b'], [0, 1, 2]])
expected = {(0, 0): 3, (0, 3): 3, (1, 0): 1, (1, 1): 1, (1, 2): 1,
(1, 3): 1, (1, 4): 1, (1, 5): 1}
result = _get_level_lengths(index)
tm.assert_dict_equal(result, expected)
def test_get_level_lengths_un_sorted(self):
index = pd.MultiIndex.from_arrays([
[1, 1, 2, 1],
['a', 'b', 'b', 'd']
])
expected = {(0, 0): 2, (0, 2): 1, (0, 3): 1,
(1, 0): 1, (1, 1): 1, (1, 2): 1, (1, 3): 1}
result = _get_level_lengths(index)
tm.assert_dict_equal(result, expected)
def test_mi_sparse(self):
df = pd.DataFrame({'A': [1, 2]},
index=pd.MultiIndex.from_arrays([['a', 'a'],
[0, 1]]))
result = df.style._translate()
body_0 = result['body'][0][0]
expected_0 = {
"value": "a", "display_value": "a", "is_visible": True,
"type": "th", "attributes": ["rowspan=2"],
"class": "row_heading level0 row0",
}
tm.assert_dict_equal(body_0, expected_0)
body_1 = result['body'][0][1]
expected_1 = {
"value": 0, "display_value": 0, "is_visible": True,
"type": "th", "attributes": ["rowspan=1"],
"class": "row_heading level1 row0",
}
tm.assert_dict_equal(body_1, expected_1)
body_10 = result['body'][1][0]
expected_10 = {
"value": 'a', "display_value": 'a', "is_visible": False,
"type": "th", "attributes": ["rowspan=1"],
"class": "row_heading level0 row1",
}
tm.assert_dict_equal(body_10, expected_10)
head = result['head'][0]
expected = [
{'type': 'th', 'class': 'blank', 'value': '',
'is_visible': True, "display_value": ''},
{'type': 'th', 'class': 'blank level0', 'value': '',
'is_visible': True, 'display_value': ''},
{'attributes': ['colspan=1'], 'class': 'col_heading level0 col0',
'is_visible': True, 'type': 'th', 'value': 'A',
'display_value': 'A'}]
self.assertEqual(head, expected)
def test_mi_sparse_disabled(self):
with pd.option_context('display.multi_sparse', False):
df = pd.DataFrame({'A': [1, 2]},
index=pd.MultiIndex.from_arrays([['a', 'a'],
[0, 1]]))
result = df.style._translate()
body = result['body']
for row in body:
self.assertEqual(row[0]['attributes'], ['rowspan=1'])
def test_mi_sparse_index_names(self):
df = pd.DataFrame({'A': [1, 2]}, index=pd.MultiIndex.from_arrays(
[['a', 'a'], [0, 1]],
names=['idx_level_0', 'idx_level_1'])
)
result = df.style._translate()
head = result['head'][1]
expected = [{
'class': 'index_name level0', 'value': 'idx_level_0',
'type': 'th'},
{'class': 'index_name level1', 'value': 'idx_level_1',
'type': 'th'},
{'class': 'blank', 'value': '', 'type': 'th'}]
self.assertEqual(head, expected)
def test_mi_sparse_column_names(self):
df = pd.DataFrame(
np.arange(16).reshape(4, 4),
index=pd.MultiIndex.from_arrays(
[['a', 'a', 'b', 'a'], [0, 1, 1, 2]],
names=['idx_level_0', 'idx_level_1']),
columns=pd.MultiIndex.from_arrays(
[['C1', 'C1', 'C2', 'C2'], [1, 0, 1, 0]],
names=['col_0', 'col_1']
)
)
result = df.style._translate()
head = result['head'][1]
expected = [
{'class': 'blank', 'value': '', 'display_value': '',
'type': 'th', 'is_visible': True},
{'class': 'index_name level1', 'value': 'col_1',
'display_value': 'col_1', 'is_visible': True, 'type': 'th'},
{'attributes': ['colspan=1'],
'class': 'col_heading level1 col0',
'display_value': 1,
'is_visible': True,
'type': 'th',
'value': 1},
{'attributes': ['colspan=1'],
'class': 'col_heading level1 col1',
'display_value': 0,
'is_visible': True,
'type': 'th',
'value': 0},
{'attributes': ['colspan=1'],
'class': 'col_heading level1 col2',
'display_value': 1,
'is_visible': True,
'type': 'th',
'value': 1},
{'attributes': ['colspan=1'],
'class': 'col_heading level1 col3',
'display_value': 0,
'is_visible': True,
'type': 'th',
'value': 0},
]
self.assertEqual(head, expected)
def test_render_double(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red; border: 1px",
"color: blue; border: 2px"], name=x.name)
s = Styler(df, uuid='AB').apply(style)
s.render()
def test_init_non_pandas(self):
with tm.assertRaises(TypeError):
Styler([1, 2, 3])
def apply_styling(self, df):
styler = Styler(df)
styler = styler.apply(self.rsquareHighlighterService.highlight_rsquare,
subset=["r_squared"])
return styler
def test_init_series(self):
result = Styler(pd.Series([1, 2]))
self.assertEqual(result.data.ndim, 2)
def test_render(self):
df = pd.DataFrame({"A": [0, 1]})
style = lambda x: pd.Series(["color: red", "color: blue"], name=x.name)
s = Styler(df, uuid='AB').apply(style).apply(style, axis=1)
s.render()