x509.py 文件源码

def __getitem__(self, idx):
        if isinstance(idx, slice):
            start, stop, step = idx.indices(len(self))
            return [self._revoked_cert(i) for i in range(start, stop, step)]
        else:
            idx = operator.index(idx)
            if idx < 0:
                idx += len(self)
            if not 0 <= idx < len(self):
                raise IndexError
            return self._revoked_cert(idx)