[Tutor] Just Learning Python

[Mark Brown]

I'm just learning Python and found a simple program that I'm trying to
convert to using 'class'.

The main program is 'runit2.py':

#!/usr/bin/env python

from runit2ui import *

app1 = App1()
app1.mainloop()

The user interface program is 'runit2ui.py':

#!/usr/bin/env python

from Tkinter import *
from os import system
from sys import exit

class App1:
	def __init__(self):
            root = Tk()
            root.title('PyRun')
            label = Label(root, text="Run")
            label.pack(side=LEFT)
            entry = Entry(root, takefocus=TRUE)
            entry.pack(side=LEFT, fill=X, expand=TRUE)
            entry.bind('<Key-Return>', runit)
            entry.focus()

        def runit(event):
            text = entry.get()
            command = "%s &" % text
            system(command)
            exit(0)

When 'runit2.py' is run the following error is reported:

Traceback (most recent call last):
  File "/home/mark/Projects/project2/runit2.py", line 5, in ?
    app1 = App1()
  File "/home/mark/Projects/project2/runit2ui.py", line 15, in __init__
    entry.bind('<Key-Return>', runit)
NameError: global name 'runit' is not defined


What needs to be changed to get by this error?
Thanks
Mark