Method _rotate

Lib/turtle.py:1668–1671

Turn turtle counterclockwise by specified angle if angle > 0.

(self, angle)

        self._goto(ende)

    def _rotate(self, angle):
        """Turn turtle counterclockwise by specified angle if angle > 0."""
        angle *= self._degreesPerAU
        self._orient = self._orient.rotate(angle)

    def _goto(self, end):
        """move turtle to position end."""