str.get_dummies uses astype(str)

[hayd]

I wrote this so my fault. This probably means some stuff with break when passing stuff with unicode.

Will add example.

The reason is to include integers as strings before getting dummies, maybe should just drop that functionality?

[jreback]

maybe only operate on object dtypes? and if passed nothing to work on raise an error?

[jreback]

closing in favor of #6885 (good examples their)

[hayd]

IIRC this one was about str.get_dummies rather than pd.get_dummies. So slightly different but related/can use same test case.

[jreback]

oh...ok....suspect same issue though