31. Summary

Since the last summary, we have seen one more Python keyword, while, and two additional functions, right_is_clear() and carries_objects().

31.1. Python keywords

In alphabetical order, we have seen the following Python keywords:

• def
• elif
• else
• False
• from
• if
• import
• not
• True
• while

31.2. Functions specific to Reeborg’s World

We have seen the following functions which bring about a change in Reeborg’s behaviour or in the state of its world:

• move()
• build_wall()
• put()
• pause()
• take()
• done()
• turn_left()

We have also seen the following functions which tell Reeborg something about the state of its world:

• at_goal()
• object_here()
• right_is_clear()
• front_is_clear()
• carries_object()
• wall_in_front()
• wall_on_right()