Formatter

This example shows how to implement an NSFormatter subclass in Python.

Sources

main.py

from AppKit import *
from PyObjCTools import AppHelper

class MyFormatter(NSFormatter):
    def stringForObjectValue_(self, product):
        if isinstance(product, (str, unicode)):
            return product
        return str(product)

    def getObjectValue_forString_errorDescription_(self, value, upc, error):
        print self, upc

        if not upc:
            print "No data"
            return True, None, None

        print "Have data"
        return False, None, NSString.stringWithString_("Foo the %s"%("bar",))

AppHelper.runEventLoop()

setup.py

"""
Script for building the example.

Usage:
    python setup.py py2app
"""
from distutils.core import setup
import py2app

setup(
    name="Formatter",
    app=["main.py"],
    data_files=["MainMenu.nib"],
)

Resources

• Download example