parameters: (self, angle)
docstring: Turn turtle counterclockwise by specified angle if angle > 0.
docstring_summary: Turn turtle counterclockwise by specified angle if angle > 0.
docstring_tokens: Turn turtle counterclockwise by specified angle if angle > 0 .
function: def _rotate(self, angle):
          """Turn turtle counterclockwise by specified angle if angle > 0."""
          angle *= self._degreesPerAU
          self._orient = self._orient.rotate(angle)
function_tokens: def _rotate ( self , angle ) : angle *= self . _degreesPerAU self . _orient = self . _orient . rotate ( angle )