pandas.errors.CSSWarning

exception pandas.errors.CSSWarning

Warning is raised when converting css styling fails.

This can be due to the styling not having an equivalent value or because the styling isn’t properly formatted.

See also

DataFrame.style

Returns a Styler object for applying CSS-like styles.

io.formats.style.Styler

Helps style a DataFrame or Series according to the data with HTML and CSS.

io.formats.style.Styler.to_excel

Export styled DataFrame to Excel.

io.formats.style.Styler.to_html

Export styled DataFrame to HTML.

Examples

>>> df = pd.DataFrame({"A": [1, 1, 1]})
>>> df.style.map(lambda x: "background-color: blueGreenRed;").to_excel(
...     "styled.xlsx"
... )  
CSSWarning: Unhandled color format: 'blueGreenRed'
>>> df.style.map(lambda x: "border: 1px solid red red;").to_excel(
...     "styled.xlsx"
... )  
CSSWarning: Unhandled color format: 'blueGreenRed'