def on_draw(self, gl=pyglet.gl):
		gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
		gl.glLoadIdentity()
		for renderer in self.renderers:
			renderer.draw()
openpty() -> (master_fd, slave_fd)
dataset/ETHPy150Open caseman/grease/grease/world.py/World.on_draw--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/pty.py/openpty