The file “LICENSE” in the cffi-1.15.1.tar.gz file
from https://pypi.org/project/cffi/#files contains this text:
“ The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.”
However, there is no “above copyright notice”.
The terms of the License cannot be met.
Therefore, NOONE can use this code based on the referenced MIT license.
There is no valid copyright notice elsewhere in the source code tree to help.
Please add the required copyright information to this defective LICENSE file.
Thanks