def ResourceScript(path, registry):
    """
    I am a normal py file which must define a 'resource' global, which should
    be an instance of (a subclass of) web.resource.Resource; it will be
    renderred.
    """
    cs = CacheScanner(path, registry)
    glob = {'__file__': _coerceToFilesystemEncoding("", path),
            'resource': noRsrc,
            'registry': registry,
            'cache': cs.cache,
            'recache': cs.recache}
    try:
        execfile(path, glob, glob)
    except AlreadyCached as ac:
        return ac.args[0]
    rsrc = glob['resource']
    if cs.doCache and rsrc is not noRsrc:
        registry.cachePath(path, rsrc)
    return rsrc

    I am a normal py file which must define a 'resource' global, which should
    be an instance of (a subclass of) web.resource.Resource; it will be
    renderred.
    
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/script.py