On Sun, Feb 5, 2017 at 3:52 PM, Francesco Bonazzi <[email protected]> wrote: > As you all know, Sergey Kirpichev left this community and is working on a > fork of SymPy of his own. > > https://github.com/diofant/diofant > > He keeps fixing bugs and/or adding new features, as well as keeping it > synced with SymPy. > > Unfortunately he doesn't seem to be willing to rejoin the SymPy community. > > Anyway, I think we can update our license to be the same as diofant's > license: > > https://github.com/diofant/diofant/blob/master/LICENSE > > In this way, we would be able to port Kirpichev's edits back to SymPy. > > Take also into account that Kirpichev's past contributions to SymPy are > currently not being reported in SymPy's license, as he is not listed in the > authors' list.
He is not listed in the authors' list, because he explicitly asked to be removed. He is listed in the git history. So he is included in the license, obviously, as each author owns the copyright to his or her contributions, and he gave sympy the right to use his code under the BSD license, just like anybody else. You can use "git log" to find out who wrote what. > > What do you think? Shall we edit our LICENSE file to include Sergey > Kirpichev and diofant? No, not in the main license, as Sergey only owns the copyright of his own contributions, not the whole SymPy. However, I already submitted a PR with adding his license underneath: https://github.com/sympy/sympy/pull/10531 I also asked Sergey whether he is ok with such an arrangement going forward, but he never replied. He did give permission for that particular PR though. I think the BSD license clearly allows to use his work, as long as we copy his license somewhere in our documentation/repository, so I am not against merging #10531 and keep porting his fixes. But it's always better to have his permission that he is ok with such an arrangement. Ondrej -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CADDwiVD-%2BGQq1qmhG-j-%2BOpUnNDPSu6Ed-FFi51Px9CA1v2c6g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
