On Fri, Aug 25, 2017 at 1:38 PM, Erik Bray <erik.m.b...@gmail.com> wrote: > On Thu, Aug 24, 2017 at 11:49 PM, William Stein <wst...@gmail.com> wrote: >> On Thu, Aug 24, 2017 at 2:17 PM, Nils Bruin <nbr...@sfu.ca> wrote: >>> On Thursday, August 24, 2017 at 1:30:25 PM UTC-7, William wrote: >>>> >>>> I'm not sure what the status is these days, but we may want to stop >>>> including a python3 binary in Sage by default with "python3" right >>>> there in the "sage -sh" path... >>> >>> >>> As far as I understand, having python3 included in sage is part of the >>> deliberate strategy towards porting sage to python3. Since sage comes with >>> its own python(2), the most straightforward move of sage would be towards >>> sage working on top of an included python3. >> >> The problem is simply the "python3" executable which gets picked up >> and breaks things. >> >>> If you're using jupyter for non-sage-specific purposes (apparently relying >>> on a system python3), why not use system jupyter? Personally, I just install >>> the sage-jupyter kernel in the system jupyter. That way, your main jupyter >>> runs independent of sage (other than the extensions that get registered upon >>> registering the sage kernel), and doesn't get confused by the system things >>> sage does. >> >> Nope. For example, Sage worksheets in Cocalc have a full "jupyter >> bridge" that lets you simultaneously use several different Jupyter >> kernels from within a Sage session, e.g., in different cells of a >> notebook. Having python3 in the PATH randomly breaks many of these. >> Removing it, and everything works fine. >> >> For now I guess we'll keep deleting local/bin/python3 ourselves... >> >> Frickin' Guido... > > How is this Guido's fault? Why should having python3 in the PATH > break anything? Sounds like a problem with Jupyter if you ask me.
I couldn't reproduce the problem in my Sage install, but I don't know if I'm setting things up the same way as in CoCalc (which isn't clear). I did: $ ./sage -sh $ pip install jupyter-console bash_kernel # These do not come standard in Sage $ python -m bash_kernel.install --prefix="$SAGE_LOCAL" $ jupyter console --kernel=bash Jupyter console 5.2.0 GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu) Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. In [1]: python -c 'print "Hello"' Hello In [2]: python3 -c 'print("Hello")' Hello -- 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.
