Better license
miurahr opened this issue · comments
Describe the bug
There are mixture of licenses, Public Domain or LGPLv2+ (c code from p7zip, that derivative from 7-zip) and BSD-3.
It is better to change to LGPLv2+ that is clean.
Only compatible license is LGPLv2+. so I've changed to it.
- Ppmd7 code can be obtained from LZMA SDK https://www.7-zip.org/sdk.html which is public domain
- Ppmd8 code is a part of 7-zip, but the header says public domain. Also, explicit permission has been issued in https://sourceforge.net/p/sevenzip/discussion/45797/thread/8de79baf/ .
I suppose it is safe to license pyppmd under BSD License.
There is no problem.
sure (when I find more "liberal" source (here I mean LZMA SDK for example) I tend to switch to it, but it is all up to you)