docs: def csv_import(self, csv_source, encoding='utf-8', transforms=None, row_class=DataObject, **kwargs):
          """Imports the contents of a CSV-formatted file into this table.
             @param csv_source: CSV file - if a string is given, the file with that name will be
                 opened, read, and closed; if a file object is given, then that object
                 will be read as-is, and left for the caller to be closed.
             @type csv_source: string or file
             @param encoding: encoding to be used for reading source text if C{csv_source} is
                 passed as a string filename
             @type encoding: string (default='UTF-8')
             @param transforms: dict of functions by attribute name; if given, each
                 attribute will be transformed using the corresponding transform; if there is no
                 matching transform, the attribute will be read as a string (default); the
                 transform function can also be defined as a (function, default-value) tuple; if
                 there is an Exception raised by the transform function, then the attribute will
                 be set to the given default value
             @type transforms: dict (optional)
             @param kwargs: additional constructor arguments for csv C{DictReader} objects, such as C{delimiter}
                 or C{fieldnames}; these are passed directly through to the csv C{DictReader} constructor
             @type kwargs: named arguments (optional)
          """
          reader_args = dict((k, v) for k, v in kwargs.items() if k not in ['encoding',
                                                                            'csv_source',
                                                                            'transforms',
                                                                            'row_class'])
          reader = lambda src: csv.DictReader(src, **reader_args)
          return self._import(csv_source, encoding, transforms, reader=reader, row_class=row_class)