def render_filter(self, next_filter):
        """ Produce formatted output from the raw data stream. """
        next(next_filter)
        while True:
            data = (yield)
            res = [self.cell_format(access(data)) for access in self.accessors]
            next_filter.send(res)
def render_filter ( self , next_filter ) : next ( next_filter ) while True : data = ( yield ) res = [ self . cell_format ( access ( data ) ) for access in self . accessors ] next_filter . send ( res )
Produce formatted output from the raw data stream.