(self)
return self.closed in ('left', 'both')
Check if the interval is closed on the left side.
Check if the interval is closed on the left side.
Check if the interval is closed on the left side .
def closed_left(self):
        """Check if the interval is closed on the left side.

        """
        return self.closed in ('left', 'both')
def closed_left ( self ) : return self . closed in ( 'left' , 'both' )