These were probably intentional missing names, however raising
NotImplementedError or KeyError is more explicit than trying to call an
unknown function.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
This is so the package knows the "upstream" name of the corresponding PyPI
package that it's based on.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>