2017-02-27 15:20 GMT+00:00 Eelco Dolstra <eelco.dols...@logicblox.com>:
> Hi, > > On 02/24/2017 07:54 AM, Freddy Rietdijk wrote: > > >> I'd be happy to help with the process of mass-renaming, if somebody > provided a > > list of packages wanting 2 or 3, however I suspect the real work is in > > determining those package sets. > > So, if a query-replace for `pkgs.python` -> `pkgs.python2` / > `pkgs.python3` > > within nixpkgs would cause so much trouble, how would a rename in > > `all-packages.nix` fare any better? Are we ready to throw the switch yet? > > > > All the packages that explicitly need Python 2 are already pinned to use > Python > > 2. That was a matter of converting, testing, and moving on. About 150 > packages > > were pinned to `python2`. That is why a `python = python3` won't break > anything > > (or nearly nothing) in Nixpkgs anymore. > > It may silently break external users, though. So removing the "python" > attribute > is preferable to aliasing it to "python3". > > BTW, I just noticed that the Python 3 package in 17.03 already defines a > "python > -> python3" symlink (introduced by [1]). IMHO, we should revert that, > since it > can only lead to pointless environment collision errors/warnings. Also, we > probably don't want to promote the use of the "python" executable name > because > it's unversioned (so when Python 4 breaks the language again, we'll have > to go > through this whole process again). > I agree totally. > > [1] https://github.com/NixOS/nixpkgs/commit/708822250e017f0256b0bace5af27a > 7232e6e1fd > > -- > Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ > _______________________________________________ > nix-dev mailing list > nix-dev@lists.science.uu.nl > http://lists.science.uu.nl/mailman/listinfo/nix-dev > -- Tomasz Czyż
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