Can't import ProductIO

i’m trying to use the ProductIO class but im getting an error when importing.
snappy is working but this line not:

from snappy import ProductIO

it raised:

ImportError: cannot import name ProductIO

thank you.

is snappy callable at all?

import snappy

and see what happens.

Yes it is.

Did you search for the error already? A search gives already some results with some hints.