stateMachine2.py 文件源码

def checkpath_iter(self, fullname):
        for dirpath in sys.path:
            # if the value in sys.path_importer_cache is None, then this
            # path *should* be imported by the builtin mechanism, and the
            # entry is thus a path to a directory on the filesystem;
            # if it's not None, then some other importer is in charge, and
            # it probably isn't even a filesystem path
            if sys.path_importer_cache.get(dirpath,False) is None:
                checkpath = os.path.join(
                        dirpath,'%s.%s' % (fullname,self.suffix))
                yield checkpath