pandas.io.formats.style.Styler.format

Styler.format(self, formatter, subset=None, na_rep: Union[str, NoneType] = None)

Format the text display value of cells.

Parameters

formatterstr, callable, dict or None

If formatter is None, the default formatter is used

subsetIndexSlice

An argument to DataFrame.loc that restricts which elements formatter is applied to.

na_repstr, optional

Representation for missing values. If na_rep is None, no special formatting is applied

New in version 1.0.0.

Returns

selfStyler

Notes

formatter is either an a or a dict {column name: a} where a is one of

• str: this will be wrapped in: a.format(x)

• callable: called with the value of an individual cell

The default display value for numeric values is the “general” (g) format with pd.options.display.precision precision.

Examples

>>> df = pd.DataFrame(np.random.randn(4, 2), columns=['a', 'b'])
>>> df.style.format("{:.2%}")
>>> df['c'] = ['a', 'b', 'c', 'd']
>>> df.style.format({'c': str.upper})

pandas.io.formats.style.Styler.export pandas.io.formats.style.Styler.from_custom_template