Hi Jan I initially installed from the binary tarball. Successfully tried
sudo apt install tk tk-dev sage -f python2 Ubuntu18.04 seems to be missing several development tools. So I guess this will all be resolved when a version of sage for 18.04 is formally released. Many thanks for your help. Graham On 11 August 2018 at 15:22, Jan Groenewald <j...@aims.ac.za> wrote: > Hi > > On Sat, 11 Aug 2018 at 15:38, Graham Gerrard <graham.gerr...@gmail.com> > wrote: > >> I am using sage from a command prompt ... >> >> >> show(line2d([(0,0),(1,1),(2,4)])) produces >> >> /home/graham/SageMath/local/lib/python2.7/lib-tk/Tkinter.py in <module>() >> 37 # Attempt to configure Tcl/Tk without requiring PATH >> 38 import FixTk >> ---> 39 import _tkinter # If this fails your Python may not be >> configuredhttps://packages.ubuntu.com/search?keywords=tk&; >> searchon=names&suite=bionic§ion=all for Tk >> 40 tkinter = _tkinter # b/w compat for export >> 41 TclError = _tkinter.TclError >> >> ImportError: libtk8.6.so: cannot open shared object file: No such file >> or directory. >> > > > Did you install from source? (versus from apt / software centre?) > > http://doc.sagemath.org/html/en/installation/source.html#tcl-tk > > So it looks like even if you just sudo apt install tk8.6 (and mabye > tk8.6-blt2.5??) > your ubuntu python might pick it up but not the sage python. > > So you should sudo apt install tk8.6-dev (and mabye tkblt-dev??) > and then rebuild the sage python as per the instructions at the link above. > > tk packages in ubuntu 18.04: > > https://packages.ubuntu.com/search?keywords=tk&searchon= > names&suite=bionic§ion=all > > Or perhaps there is someone else who can answer if one can tell Sage not > to try to use tk for > show(lines(... but to use another graphics toolkit. > > Regards, > Jan > -- > .~. > /V\ Jan Groenewald > /( )\ www.aims.ac.za > ^^-^^ > > -- > You received this message because you are subscribed to a topic in the > Google Groups "sage-support" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/sage-support/xbLE-tPJziI/unsubscribe. > To unsubscribe from this group and all its topics, 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. > -- 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.
