Andrà Roberge wrote:
Behind the scene, I have something like:
robot_dict = { 'robot' = CreateRobot( ..., name = 'robot') }
and have mapped move() to correspond to
robot_dict['robot'].move()
(which does lots of stuff behind the scene.)

I have tested robot_dict[] with more than one robot (each with
its own unique name)  and am now at the point where I would like
to have the ability to interpret something like:

alex = CreateRobot()
anna = CreateRobot()

alex.move()
anna.move()

etc. Since I want the user to learn Python's syntax, I don't
want to require him/her to write
alex = CreateRobot(name = 'alex')
to then be able to do
alex.move()

How do you get the commands from the user? Maybe you can preprocess the user code?


py> class Robot(object):
...     def __init__(self, name):
...         self.name = name
...     def move(self):
...         print "robot %r moved" % self.name
...
py> user_code = """\
... alex = Robot()
... anna = Robot()
... alex.move()
... anna.move()"""
py> new_user_code =  re.sub(r'(\w+)\s+=\s+Robot\(\)',
...                         r'\1 = Robot(name="\1")',
...                         user_code)
py> print new_user_code
alex = Robot(name="alex")
anna = Robot(name="anna")
alex.move()
anna.move()
py> exec new_user_code
robot 'alex' moved
robot 'anna' moved

Steve
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