This is a particular problem for votable files, where a number of column names must be specified. If you call the read_votable_file method, they are positional, required inputs. But when you call the generic read function they are defaulted to None and then you get a fairly unhelpful error message because it's trying to do work on a None object. These Nones should be caught in either the generic read method or the read_votable_file method (probably the latter).
This is a particular problem for votable files, where a number of column names must be specified. If you call the
read_votable_filemethod, they are positional, required inputs. But when you call the genericreadfunction they are defaulted toNoneand then you get a fairly unhelpful error message because it's trying to do work on aNoneobject. TheseNonesshould be caught in either the genericreadmethod or theread_votable_filemethod (probably the latter).