this is now https://trac.sagemath.org/ticket/21199
On Wednesday, August 10, 2016 at 9:34:59 AM UTC+1, Dima Pasechnik wrote: > > > > On Wednesday, August 10, 2016 at 9:22:46 AM UTC+1, Dima Pasechnik wrote: >> >> >> >> On Wednesday, August 10, 2016 at 9:13:14 AM UTC+1, The Geeko wrote: >>> >>> I just encountered this problem.... sage -i py3 ( to install python3)... >>> broke my whole system... Is there a single "undo" operation so that I can >>> return to my working copy? >>> >> >> do you mean >> >> sage -i python3 >> > > this breaks sage, as it makes the symbolic link 'python' to point to > 'python3' in SAGE_LOCAL/bin. > To fix, it suffices to make it point to python2 instead: > > cd SAGE_ROOT # where your Sage is installed > cd local/bin > ln -sf python2 python > > Then everything works as before > (and you may also use python3 script from 'sage -sh') > > Perhaps a proper fix would be to leave python symbolic link as it is. > > Dima > > >> IMHO Sage does not have a package named py3 >> >> >> >>> >>> On Wednesday, October 21, 2015 at 6:30:31 AM UTC-5, Emmanuel Charpentier >>> wrote: >>>> >>>> This is probably related to Trac#18521 >>>> <http://trac.sagemath.org/ticket/18521>, but on Linux (Debian testing) >>>> : Installing the optional python3 package breaks my Sage installation. >>>> After installing it, I get : >>>> >>>> charpent@SAP5057241:~$ sage >>>> /usr/local/sage/src/bin/sage-env : ligne 423 : 3485 >>>> Abandon "$SAGE_ROOT/local/bin/python" -c 'import >>>> pkg_resources; pkg_resources.get_distribution("matplotlib").version' 2> >>>> /dev/null >>>> ┌────────────────────────────────────────────────────────────────────┐ >>>> │ SageMath Version 6.9, Release Date: 2015-10-10 │ >>>> │ Type "notebook()" for the browser-based notebook interface. │ >>>> │ Type "help()" for help. │ >>>> └────────────────────────────────────────────────────────────────────┘ >>>> Fatal Python error: Py_Initialize: Unable to get the locale encoding >>>> File "/usr/local/sage/local/lib/python/encodings/__init__.py", line >>>> 123 >>>> raise CodecRegistryError,\ >>>> ^ >>>> SyntaxError: invalid syntax >>>> /usr/local/sage/src/bin/sage : ligne 388 : 3493 >>>> Abandon sage-location >>>> >>>> After this, my Sage installation is broken real good : I can't even >>>> make... >>>> >>>> Shouldn't we displace python3 in "experimental" packages ? >>>> >>>> HTH, >>>> >>>> -- >>>> Emmanuel Charpentier >>>> >>>> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
