在Canopy中运行Python Turtle的问题

Question

I wrote this code:

import turtle
wn = turtle.Screen()
Matthew = turtle.Turtle() 
Matthew.forward(200)
Matthew.left(90)
Matthew.forward(200) 

and saved it as Matthew.py If I run Matthew.py using Idle I get the expected behaviour (new window opens and little turtle does its moves). If I open and run Matthew.py in Canopy it just hangs there. All I see is:

%run /Users/matteoniccoli/Canopy/Notebooks/Matthew.py

but it just hangs there, no errors.

Am I doing something wrong?

Please notice as an experiment I copied the same code in a IPython notebook and saved it as Matthew.ipynb, then run the code in the notebook in Canopy and it works fine.

Answer 1

By default Canopy Python uses a Qt GUI backend. Turtle uses a TK backend. They conflict. See https://support.enthought.com/entries/21793229-Using-Tkinter-Turtle-in-Canopy-s-IPython-panel for resolution.