Hi, the problem is that python-matplotlib needs python-tk (it's the default backend), but only recommends it rather than depending on it. autopkgtests apparently don't install recommends. I already filed this as #921108 but the matplotlib2 maintainer does not want to change it.
sagemath 8.6-3 had a dependency on python-tk but it really has nothing to do with python-tk. Best, Tobias On 2/1/19 7:48 PM, Paul Gevers wrote: > Source: sagemath, sagetex > Control: found -1 sagemath/8.6-4 > Control: found -1 sagetex/3.2+ds-1 > Control: affects -1 src:texlive-base > Severity: important > User: debian...@lists.debian.org > Usertags: breaks needs-update > > [X-Debbugs-CC: debian...@lists.debian.org, texlive-b...@packages.debian.org] > > Dear maintainers, > > With a recent upload of sagemath the autopkgtest of sagetex fails in > testing when that autopkgtest is run with the binary packages of > sagemath from unstable. It passes when run with only packages from > testing. In tabular form: > pass fail > sagemath from testing 8.6-4 > sagetex from testing 3.2+ds-1 > versioned deps [0] from testing from unstable > all others from testing from testing > > I copied some of the output at the bottom of this report. It seems to me > that sagemath should not have dropped the dependency on python-tk. > However, it is possible that the issue is in six, or that sagetext now > should add it to the (test) dependencies. > > Currently this regression is blocking the migration of sagemath (and > texlive-base) to testing [1]. Due to the nature of this issue, I filed > this bug report against both packages. Can you please investigate the > situation and reassign the bug to the right package? If needed, please > change the bug's severity. FYI, also in unstable, the test fails. > > More information about this bug and the reason for filing it can be found on > https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation > > Paul > > [0] You can see what packages were added from the second line of the log > file quoted below. The migration software adds source package from > unstable to the list if they are needed to install packages from > sagemath/8.6-4. I.e. due to versioned dependencies or breaks/conflicts. > [1] https://qa.debian.org/excuses.php?package=sagemath > > https://ci.debian.net/data/autopkgtest/testing/amd64/s/sagetex/1821254/log.gz > autopkgtest [04:29:31]: test compose-examples: [----------------------- > rm -f *.aux *.out *.log > rm -f *.sagetex.s* *.sobj *-tikz*.table > rm -f -r sage-plots-for-*.tex > rm -f example_doctest.sage > rm -f example.pdf > pdflatex -interaction batchmode example.tex > This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live > 2019/dev/Debian) (preloaded format=pdflatex) > restricted \write18 enabled. > entering extended mode > sage example.sagetex.sage > Setting permissions of DOT_SAGE directory so only you can read and write it. > Processing Sage code for example.tex... > Inline formula 0 (line 35) > Inline formula 1 (line 36) > Inline formula 2 (line 38) > Inline formula 3 (line 39) > Code block (line 42) begin...end > Inline formula 4 (line 49) > Inline formula 5 (line 51) > Inline formula 6 (line 54) > Code block (line 58) begin...end > Inline formula 7 (line 63) > Inline formula 8 (line 64) > Code block (line 68) begin...end > Inline formula 9 (line 77) > Inline formula 10 (line 78) > Code block (line 81) begin...end > Inline formula 11 (line 85) > Code block (line 87) begin...Traceback (most recent call last): > File "example.sagetex.sage.py", line 121, in <module> > _st_.plot(_sage_const_0 , format='notprovided', > _p_=E.plot(-_sage_const_3 ,_sage_const_3 )) > File "/usr/lib/python2.7/dist-packages/sagetex.py", line 239, in plot > _p_.save(filename=plotfilename, **kwargs) > File "/usr/lib/python2.7/dist-packages/sage/misc/decorators.py", line > 411, in wrapper > return func(*args, **kwds) > File "/usr/lib/python2.7/dist-packages/sage/plot/graphics.py", line > 3167, in save > figure = self.matplotlib(**options) > File "/usr/lib/python2.7/dist-packages/sage/plot/graphics.py", line > 2543, in matplotlib > import matplotlib.pyplot as plt > File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line > 115, in <module> > _backend_mod, new_figure_manager, draw_if_interactive, _show = > pylab_setup() > File > "/usr/lib/python2.7/dist-packages/matplotlib/backends/__init__.py", line > 62, in pylab_setup > [backend_name], 0) > File > "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", > line 4, in <module> > from . import tkagg # Paint image to Tk photo blitter extension. > File "/usr/lib/python2.7/dist-packages/matplotlib/backends/tkagg.py", > line 5, in <module> > from six.moves import tkinter as Tk > File "/usr/lib/python2.7/dist-packages/six.py", line 203, in load_module > mod = mod._resolve() > File "/usr/lib/python2.7/dist-packages/six.py", line 115, in _resolve > return _import_module(self.mod) > File "/usr/lib/python2.7/dist-packages/six.py", line 82, in _import_module > __import__(name) > File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 42, in <module> > raise ImportError, str(msg) + ', please install the python-tk package' > ImportError: No module named _tkinter, please install the python-tk package > end > Inline formula 12 (line 91) > Initializing plots directory > Plot 0 (line 97) > > **** Error in Sage code on line 97 of example.tex! Traceback follows. > > **** Running Sage on example.sage failed! Fix example.tex and try again. > make: *** [Makefile:52: example.pdf] Error 1 > autopkgtest [04:29:35]: test compose-examples: -----------------------] >
