DOC: DataFrame.select_dtypes for non-object string types

[s-banach]

Pandas version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.select_dtypes.html

Documentation problem

I want to select pyarrow string columns.
The documentation says to ask for object dtypes, which will not capture pyarrow strings.

Actually, it may be a bug rather than a documentation problem.
If I try something like this:

import pyarrow as pa
df.select_dtypes(include=[pd.ArrowDtype(pa.string()), pd.ArrowDtype(pa.large_string())])

Then I get the following error:
TypeError("string dtypes are not allowed, use 'object' instead")

Suggested fix for documentation

Just put this on the list of things that have to be done before pandas 3.0.

[phofl]

Yeah select dtypes doesn't work great for EA dtypes, thanks for reporting