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BUG: styler.format options and validator tests #43341

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Merged
merged 11 commits into from
Sep 6, 2021
Merged

BUG: styler.format options and validator tests #43341

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643d300
styler.format options and validator tests
attack68 Sep 1, 2021
d42fdac
add to tests
attack68 Sep 1, 2021
fe30ac7
CI: Revive Banklist Tests (#42889)
lithomas1 Sep 1, 2021
dbfdd6f
Merge remote-tracking branch 'upstream/master' into bug_formatting_op…
attack68 Sep 1, 2021
09e483b
Merge remote-tracking branch 'upstream/master' into bug_formatting_op…
attack68 Sep 1, 2021
4671ec7
Merge remote-tracking branch 'upstream/master' into bug_formatting_op…
attack68 Sep 1, 2021
37a9b33
test param
attack68 Sep 2, 2021
f089218
Merge remote-tracking branch 'upstream/master' into bug_formatting_op…
attack68 Sep 4, 2021
2b4e0e9
Merge branch 'master' into bug_formatting_options
attack68 Sep 5, 2021
d51ddb6
revert and fix
attack68 Sep 5, 2021
2fb4e2c
revert and fix
attack68 Sep 5, 2021
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3 changes: 2 additions & 1 deletion pandas/core/config_init.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@

"""
import os
from typing import Callable
import warnings

import pandas._config.config as cf
Expand Down Expand Up @@ -879,7 +880,7 @@ def register_converter_cb(key):
"format.formatter",
None,
styler_formatter,
validator=is_instance_factory([type(None), dict, callable, str]),
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umm why doesn't this work?

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x = '{:.2f}'

    def inner(x) -> None:
>       if not isinstance(x, _type):
E       TypeError: isinstance() arg 2 must be a type or tuple of types

x = <function <lambda> at 0x1251dd160>

    def inner(x) -> None:
>       if not isinstance(x, _type):
E       TypeError: isinstance() arg 2 must be a type or tuple of types

Also the signature of of the is_instance_factory struggles with callable:

>>> isinstance(lambda x: x, callable)
False
>>> isinstance(lambda x: x, type(callable))
False
>>> callable(lambda x: x)
True

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@attack68 attack68 Sep 5, 2021 •
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Ok fixed: callable != Callable !!!

validator=is_instance_factory([type(None), dict, Callable, str]),
)

cf.register_option("html.mathjax", True, styler_mathjax, validator=is_bool)
Expand Down
22 changes: 22 additions & 0 deletions pandas/tests/io/formats/style/test_format.py
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Original file line number Diff line number Diff line change
Expand Up @@ -308,6 +308,28 @@ def test_precision_zero(df):
assert ctx["body"][1][2]["display_value"] == "-1"


@pytest.mark.parametrize(
"formatter, exp",
[
(lambda x: f"{x:.3f}", "9.000"),
("{:.2f}", "9.00"),
({0: "{:.1f}"}, "9.0"),
(None, "9"),
],
)
def test_formatter_options_validator(formatter, exp):
df = DataFrame([[9]])
with option_context("styler.format.formatter", formatter):
assert f" {exp} " in df.style.to_latex()


def test_formatter_options_raises():
msg = "Value must be an instance of"
with pytest.raises(ValueError, match=msg):
with option_context("styler.format.formatter", ["bad", "type"]):
DataFrame().style.to_latex()


def test_1level_multiindex():
# GH 43383
midx = MultiIndex.from_product([[1, 2]], names=[""])
Expand Down