[Pythoncard-users] walkthru #2 - aliasing functions instead of re-defining them

[Terrence B. <met...@gm...>]

I am working on this: http://pythoncard.sourceforge.net/walkthrough2.html

and instead of rewriting each function, I tried to alias them. However, that
does not work. Can anyone explain why? Code below:

#!/usr/bin/python

import sys

"""
__version__ = "$Revision: 1.8 $"
__date__ = "$Date: 2005/12/17 15:20:02 $"
"""

from PythonCard import model, dialog


class Counter(model.Background):
    """
    def __init__(self):
        self.initialValue = 666
        """

    def on_menuFileAbout_select(self, event):
        result = dialog.alertDialog(self,
                                    self.components.field1.text,
                                    'Showing off')
    def valueDelta(self, delta):
        startValue = int(self.components.field1.text)
        endValue   = startValue + delta
        self.components.field1.text = str(endValue)

    def on_incrBtn_mouseClick(self, event):
        self.valueDelta(1)

    def on_decrBtn_mouseClick(self, event):
        self.valueDelta(-1)

    def on_resetBtn_mouseClick(self, event):
        self.components.field1.text = str(222)

    """Either of these works:
    def on_menuIncr_select(self, event):
        # works: self.valueDelta(1)
        # works: self.on_incrBtn_mouseClick(event)

    but when I try to directly alias the function to another, it
    just hangs:
    """
    on_menuIncr_select = on_incrBtn_mouseClick

if __name__ == '__main__':
    app = model.Application(Counter)
    app.MainLoop()