def _setup_pkgresources():
    import pkg_resources
    import os, plistlib

    pl = plistlib.readPlist(os.path.join(
        os.path.dirname(os.getenv('RESOURCEPATH')), "Info.plist"))
    appname = pl.get('CFBundleIdentifier')
    if appname is None:
        appname = pl['CFBundleDisplayName']
    path = os.path.expanduser('~/Library/Caches/%s/python-eggs'%(appname,))
    pkg_resources.set_extraction_path(path)

_setup_pkgresources()