(self)
Return an iterator over keys.
Return an iterator over keys.
Return an iterator over keys .
def iterkeys(self):
        """Return an iterator over keys."""
        self._refresh()
        for key in self._toc:
            try:
                self._lookup(key)
            except KeyError:
                continue
            yield key
def iterkeys ( self ) : self . _refresh ( ) for key in self . _toc : try : self . _lookup ( key ) except KeyError : continue yield key