On Sun, Jan 4, 2015 at 8:38 PM, Aaron Meurer <asmeu...@gmail.com> wrote: > > > On Sun, Jan 4, 2015 at 11:01 AM, Matthew Brett <matthew.br...@gmail.com> > wrote: >> >> On Sun, Jan 4, 2015 at 5:43 PM, Joachim Durchholz <j...@durchholz.org> >> wrote: >> > Am 04.01.2015 um 14:51 schrieb Matthew Brett: >> >> >> >> As far as I can see pip has had uninstall since version 0.6, about 5 >> >> years ago. The stackoverflow post is someone trying to uninstall >> >> using the wrong command line. >> > >> > >> > LOL. That's what you get from just skimming a problem report. >> > >> > So, pip is in the clear about uninstalling. >> > Are there other problems with it that would affect us? >> >> For sympy / mpmath, no, I don't think so. I'm happy to be corrected >> if someone can think of something. > > > I think you're right. The proglems I know of with pip are > > - packages that have bad metadata in setup.py (something we can easily > avoid) > - combinations of packages that have some version restrictions. I doubt > people will want anything but the latest mpmath. The only issue might be if > mpmath breaks compatibility in some subtle way that breaks an old version of > SymPy, and someone needs to use an old version of SymPy. In that case, they > will need to know what version of mpmath to install in addition to SymPy. > Conda does help here because in addition to having a true dependency solver, > it lets you add dependency restrictions to old versions of packages > retroactively. But honestly, with mpmath, it's a non-issue, and I doubt it > will come up in any serious way. > - packages that require compilation. This is pip's worst sore, because it > compiles packages from source, unless there are wheels, and compiling from > source on a user's machine is destined to fail. But SymPy is and will remain > pure Python. This is more an issue with CSymPy, and again, you can work > around it by building wheels.
Right. For CSymPy we actually allow "pip install" and test it regularly on Travis (https://github.com/sympy/csympy/blob/9e6384713b2254413d15980c366521ac39624e1d/bin/test_travis.sh#L54), but the way it works is that there is a very thin setup.py (https://github.com/sympy/csympy/blob/9e6384713b2254413d15980c366521ac39624e1d/setup.py) that just calls cmake under the hood. I personally don't use pip and just use cmake for CSymPy. But that's a separate question, unrelated to SymPy and Mpmath. > > (by the way, in case you didn't know, I work on conda for my day job, so I'm > very biased in that direction) (I am contributing to Hashdist in my free time and also would like to finish the Conda's CSymPy package eventually.) Ondrej > > Aaron Meurer > >> >> >> I suspect the new tool that gets really widespread adoption will first >> >> need to persuade the Python Packaging Authority [3]. >> > >> > >> > I'd be very happy if that's truly the case, because their policy sounds >> > very >> > much like what we need (very careful not to break backwards >> > compatibility >> > etc.) >> > Can we verify that the PPA is really authoritative? At least in those >> > ways >> > that count, i.e. if what they decide is quickly and widely adopted, >> > that's >> > good enough for me, authoritative or not. >> >> I think PPA is authoritative on general Python packaging. I think that >> conda and so on are trying to establish themselves as de-facto >> standards in scientific Python. >> >> The route that most projects I know have taken is to build things that >> work with pip (like wheels for matplotlib etc) and let Continuum and >> the conda team develop conda packages. >> >> Cheers, >> >> Matthew >> >> -- >> 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 sympy+unsubscr...@googlegroups.com. >> To post to this group, send email to sympy@googlegroups.com. >> Visit this group at http://groups.google.com/group/sympy. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/sympy/CAH6Pt5p8b46L0ehP%2B_SGjnGem%3DAPR5qN11EeNLqygunWuP9EYA%40mail.gmail.com. >> For more options, visit https://groups.google.com/d/optout. > > > -- > 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 sympy+unsubscr...@googlegroups.com. > To post to this group, send email to sympy@googlegroups.com. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/CAKgW%3D6JERR9%2BFA_-O1Zmw%2Bh8N4bc95ek4Lh6hFzPdLbdbasgiw%40mail.gmail.com. > > For more options, visit https://groups.google.com/d/optout. -- 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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CADDwiVBvLrtOpEoyiCKJYV3wvz3osmnFVGGi2yYe__Z_24BwqA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
