[sage-devel] Re: Symbolic matrix inverse still gives seg-fault, core-dump

2018-06-14 Thread Richard_L
The problem last year arose in a test for 'equals 0' being sent to maxima. I am unfortunately unable to get gdb to attach to the process today. Meanwhile, I have successfully inverted the matrix with SymPy, and shown that the result is truly the inverse. I'll try tomorrow with ipdb and see what

[sage-devel] Re: Symbolic matrix inverse still gives seg-fault, core-dump

2018-06-14 Thread Nils Bruin
On Thursday, June 14, 2018 at 1:45:12 PM UTC-7, Richard_L wrote: > > > Might anyone have a work-around please? > > Delete the assumptions and the domain declarations? Then there doesn't seem to be a problem. For solving the problem properly: it does look like the actual memory fault occurs in

[sage-devel] Category help

2018-06-14 Thread John H Palmieri
Okay, so how do I define a new category in Sage? There is some magic happening somewhere in the category stuff, and I don't know where it's documented. I am in particular interested in creating two categories: - GradedCommutativeAlgebras - GradedCommutativeAlgebrasWithBasis (and then perhaps

[sage-devel] Symbolic matrix inverse still gives seg-fault, core-dump

2018-06-14 Thread Richard_L
Last year I reported failure of this simple matrix inversion. Despite an updated Maxima (8.3.beta3), this problem persists. I attach the simplest sage source causing the error, along with a log. Given that the error messages are identical to last year, I conclude that maxima / ECL is still the

[sage-devel] Sage Days about Python 3

2018-06-14 Thread Jeroen Demeyer
Hello Sage developers, I decided to host a workshop on porting Sage to Python 3 from 9 to 13 July in Gent/Ghent/Gand/... (Belgium). Note that this is quite soon. It will be very informal, just a few people coming together and hacking. In honour of the PEP number, I decided to call it "Sage

[sage-devel] Re: to patchbots owners

2018-06-14 Thread Frédéric Chapoton
Post-Scriptum: I also suggest that patchbot owners should run their patchbots using python3. This will in particular allow pyflakes to detect some python3 issues in the code. Frédéric Le jeudi 14 juin 2018 09:35:50 UTC+2, Frédéric Chapoton a écrit : > > Hello, > > (1) to everyone, please

Re: [sage-devel] to patchbots owners

2018-06-14 Thread Jeroen Demeyer
I'm still waiting for all optional package tests to pass again before starting up my patchbots. Let's hope that this will finally be fixed in 8.3.beta6. Jeroen. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group

[sage-devel] to patchbots owners

2018-06-14 Thread Frédéric Chapoton
Hello, (1) to everyone, please consider installing pyflakes if you run a patchbot : there is a pyflakes plugin in the latest version of the patchbot, quite useful to ensure better code quality. (2) to owner of the two patchbots LinuxMint/18.2/x86_64/4.8.0-53-generic/pc78-math