pandas.errors.CSSWarning#

exception pandas.errors.CSSWarning[source]#

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'