On Saturday, June 11, 2016 at 12:27:50 PM UTC+1, William wrote: > > > > On Saturday, June 11, 2016, Frédéric Chapoton <fchap...@gmail.com > <javascript:>> wrote: > >> ok, thanks. >> >> But now I did "make" inside the py3 virtualenv. So I have a copy of sage >> build using py3 (do I ? I am not sure at all. It spend a lot of time >> building python2.7). >> And still the same imports of cython modules fail. >> And sage runs and works, but behaves in a totally "python2" way, for >> instance "print 5" works. >> >> So could please somebody give me *explicit and detailed instructions* on >> how I should try to build sage with python3 in a py3 virtualenv, as I asked >> in my first question. >> > > I'm confused by this whole thread. Why exactly do you think what you want > to do is even possible? > > Sage does not support python3 yet. It would likely take months of very > focused work to get sage to build with Python3 and pass the full test suite. >
well, to trace all the problems it would be good to have a Py3 environment where one can start a build, fix a problem, move on to the next one, etc... (Frederic and others already did quite a few changes leading towards Py3 compatibility) > > > >> >> Frederic >> >> Le vendredi 10 juin 2016 21:30:22 UTC+2, Volker Braun a écrit : >>> >>> Afaik this is the expected result: Compiled modules (both bytecode pyc >>> or binary so) are versioned and will not be loaded if there is a version >>> mismatch. >>> >>> >>> >>> On Friday, June 10, 2016 at 3:10:56 PM UTC-4, Frédéric Chapoton wrote: >>>> >>>> ok, sorry for being so dumb and unclear. Please be patient. Let me try >>>> to be more clear. >>>> Currently I do that: >>>> >>>> * enter a python3 virtual env (using source mypy3/bin/activate) >>>> * cd sage/src >>>> * launch ipython >>>> * import sage >>>> * from sage.interfaces.all import * >>>> resulting in >>>> ImportError: No module named 'sage.misc.lazy_import' >>>> >>>> So my question is: what is the cause of this error ? The same error >>>> happens for several cython modules. >>>> >>>> Frederic >>>> >>>> >>>> Le vendredi 10 juin 2016 20:59:31 UTC+2, Volker Braun a écrit : >>>>> >>>>> Whats your question >>>>> >>>>> a) you want to build Sage in a py3 environment? Then build Sage in a >>>>> py3 environment. What hat do you mean by "flag to pass to make"?? >>>>> >>>>> b) you want to build Sage in a py2 environment but you want Sage to >>>>> build its own Python 3. Then run "SAGE_PYTHON3=yes make" >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Friday, June 10, 2016 at 2:37:43 PM UTC-4, Frédéric Chapoton wrote: >>>>>> >>>>>> Sure, but how can I try ? Is there something like a flag to pass to >>>>>> make ? >>>>>> >>>>>> Le vendredi 10 juin 2016 20:19:38 UTC+2, Volker Braun a écrit : >>>>>>> >>>>>>> Sage is supposedly requiring Python 2.7 or 3.3+ to build, but it >>>>>>> isn't tested with py3 so its unlikely to actually work. >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Friday, June 10, 2016 at 2:10:38 PM UTC-4, Frédéric Chapoton >>>>>>> wrote: >>>>>>>> >>>>>>>> Hello, >>>>>>>> >>>>>>>> What is the correct way to start trying to build sage in a python3 >>>>>>>> (virtual) environnement ? >>>>>>>> >>>>>>>> When I do a "make" inside a py3 virtual env, sage just setups its >>>>>>>> own environnement, using py2, of course. >>>>>>>> >>>>>>>> When I try to import parts of sage from an ipython3 session, I run >>>>>>>> into several things: >>>>>>>> >>>>>>>> * first one is #20706. >>>>>>>> >>>>>>>> * another one is the fact that cython extensions are not available, >>>>>>>> so that I get messages like >>>>>>>> >>>>>>>> ImportError: No module named 'sage.misc.lazy_import' >>>>>>>> >>>>>>>> Is there a way to tell sage to try to build using py3 ? >>>>>>>> >>>>>>>> Frederic >>>>>>>> >>>>>>> -- >> You received this message because you are subscribed to the Google Groups >> "sage-devel" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sage-devel+unsubscr...@googlegroups.com. >> To post to this group, send email to sage-devel@googlegroups.com. >> Visit this group at https://groups.google.com/group/sage-devel. >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > Sent from my massive iPhone 6 plus. > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
