Method __iadd__

pattern/db/__init__.py:1765–1766

(self, datasheet)

    def __radd__(self, datasheet):
        m = Datasheet(datasheet); m.extend(self); return m
    def __iadd__(self, datasheet):
        self.extend(datasheet); return self

    def insert(self, i, row, default=None):
        """ Inserts the given row into the matrix.