Dear Graham,
Note that on Ubuntu 18.04 there is a sagemath and
sagemath-jupyter packages available in apt. They work
with the system Python and simplifies a lot installation.
Best
Vincent
On 8/12/18 7:57 AM, Graham Gerrard wrote:
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
--
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/V\ Jan Groenewald
/( )\ www.aims.ac.za
^^-^^
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