ea-appversion.py

#!/usr/bin/env python
"""
Check version of app installed using CFBundleVersion
"""

import os
import CoreFoundation

app = "Utilities/cocoaDialog.app" # Assumes '/Applications/App.app'

"""
Shouldn't need to change anything below here.
"""

path = "/Applications/" + app + "/Contents/Info.plist"
key = "CFBundleVersion"

if os.path.exists(path):
    result = CoreFoundation.CFPreferencesCopyAppValue(key, path)
else:
    result = "Not Installed."

print "<result>" + result + "</result>"