Could this be related to https://github.com/sagemath/sage/pull/36529?
On Tuesday, December 12, 2023 at 3:50:55 PM UTC-8 Andrew wrote: > Playing around with this a little more, I think that this is a bug/timing > issue in sage.misc.latex.py (or in subprocess.run, or a mac oddity since > it only started happening recently). > > What seems to be happening is that the generated PDF file, output_file, is > being deleted before the viewer is able to open it. Specifically, if I add > time.sleep(2) before the tmp.cleanup then the viewer opens as expected. > > def run_viewer(): > run([viewer, output_file], capture_output=True) > time.sleep(1) ## adding this, together with import time, fixes > the problem > tmp.cleanup() > > (This around line 1957 of latex.py.) Certainly this explains my experience > of the command working sometimes and failing at other times. On the other > hand, it is a little strange because subprocess.run is supposed to wait for > the process to finish. A shorter example that exhibits the problem, at > least on the two macs that I have available, is > > sage: view(crystals.LSPaths( > RootSystem(['A',4]).weight_space().basis()[1] ) ) > > If people agree that this is a bug then I am happy to post a fix. > > Andrew > > > On Monday 11 December 2023 at 4:35:59 pm UTC+11 Andrew wrote: > >> I am trying to view crystal graphs from inside sage, and I am going a >> little nuts. Sometimes view(...) works as I expect but most of the time it >> doesn't, and I see the error message: >> >> The document “sage.pdf” could not be opened. The file doesn’t exist. >> >> (my emphasis). I compiled sage from source and I am running: >> >> SageMath version 10.3.beta1 >> Release Date: 2023-12-10 >> Using Python 3.11.6. >> >> on a 2022 macbook pro (M1 max), running Sonoma 14.1.2. I installed >> dot2tex using: >> sage -i dot2tex, which >> which installed without errors. Running >> sage: from sage.graphs.graph_latex import check_tkz_graph >> sage: check_tkz_graph() >> does not report any problems with my set up. >> >> I get the error message above using the the sage commands: >> >> sage: L=RootSystem(['A',4]).weight_space().basis() >> sage: G=crystals.LSPaths(['A',4], L[1]) >> sage: G >> The crystal of LS paths of type ['A', 4] and weight Lambda[2] >> sage: view(G) >> >> I get the same error if I try the examples from the "Classical crystals" >> thematic tutorial, >> <https://doc.sagemath.org/html/en/thematic_tutorials/lie/crystals.html#installing-dot2tex> >> >> such as: >> >> sage: B = crystals.Tableaux(['A',2], shape=[2,1]) >> sage: view(B, tightpage=True) >> >> When it does work, a nice tikz generated pdf file pops up. Am I missing >> some steps? Can anyone tell me what I am doing wrong? >> >> Andrew >> >> >> -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/c47fda1e-16dc-4a87-a17b-dc5393aca1afn%40googlegroups.com.
