SimpleGUI for CodeRunner

SimpleGUI for CodeRunner

von Levi Osborne -
Anzahl Antworten: 1

Currently, the last unit of my Intro to CSP Python class is about graphics. Students create pictures and animations using global variables, creating frames, drawing lines and circles and polygons, etc.

Currently, we use codeskulptor and the simplegui module. It is a real pain to grade though and very difficult to do a lot of small assignments checking that they are getting the basics as they go.

What would be a good way for me to write questions in coderunner that implement gui. Obviously simplegui doesn't work in coderunner. Is there a different module I should be using or a working around I could use?

Here is an example of a basic questions I would want to ask and have coderunner run and grade.

Create a 600 by 600 black frame that has a 10 width diagonal white line from (0,0) to (600,600).
import simplegui
def draw(canvas):
    canvas.draw_line((0,0),(600,600),10,"white")
frame = simplegui.create_frame("Home", 600, 600)
frame.set_draw_handler(draw)
frame.start()



                        

    
    
    
                            
    
    
                                

                                        
                                

    
                            
                    

                

            

        

    
        

                

                    

                        
                
                        

                            

                                        

                                                
                                        

                                

                                        Als Antwort auf Levi Osborne
                                        
Re: SimpleGUI for CodeRunner

                                        

                                            von Richard Lobb - 
                        

                                

                            

                
                            

                                        

                                        

                
                                

                                    

                                        
GUI questions are hard.


We too have a final week on GUIs in our introductory programming course, taught using tkinter. We have a special question type python3_tkinter, which is included in the CodeRunner release on github here . I wouldn't say it was an unqualified success (tkinter isn't the greatest of starting points) but it goes OK with classes of up to six hundred students, without too many complaints. And it's certainly much better than trying to mark over five thousand questions by hand (600 x #questions_in_lab). We always set the penalty regime to zero to reduce student frustration. We always have a question in the final exam of that sort too (our exam is computer-based) and we make sure students know that if they think their answer is correct but is being marked wrong they have to contact us after the exam and we'll check it manually. At most 1 or 2% do so, and perhaps a quarter of those have a genuine case. [For example: tkinter accepts unique leading substring of keyword parameters, such as value= instead of values=. Our question type does not mimic the complete set of such weird behaviours.]


I attach an example of a simple question using that question type.
However, we don't allow the use of the Canvas widget. I think it would be very difficult to support that in a way that allowed you to give the student useful feedback if their answer was wrong.