[Debian-science-sagemath] Bug#852780: cantor-backend-sage: sagemath is now in Debian, package does not work with it

[Ximin Luo]

Ximin Luo:
> Package: cantor-backend-sage
> Version: 4:16.08.3-1
> Severity: normal
> 
> Dear Maintainer,
> 
> SageMath has been in Debian for about a month now: https://packages.qa.debian.org/s/sagemath.html
> 
> I just did a quick test and it seems not to work however, it detects the Sage version incorrectly and has trouble interfacing with it:
> 
> [..]

(To be clear it is the cantor-sage interface that does not work, sagemath is fine.)

It seems to get a bit further when I set SAGE_BANNER=no, but it still fails:

$ SAGE_BANNER=no cantor
[..]
wsStatusChange 0
out:  "\u001B]0;IPython: infinity0/tmp\u0007"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h\u001B[?2004l"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h\u001B[?2004l\u001B[?1l"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h\u001B[?2004l\u001B[?1l\u001B[6n"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h\u001B[?2004l\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h"
out:  "\u001B]0;IPython: infinity0/tmp\u0007\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[J\r\u001B[J\u001B[?7h\u001B[0m\u001B[?12l\u001B[?25h\u001B[?2004l\u001B[?1l\u001B[6n\u001B[?2004h\u001B[?25l\u001B[?7l\u001B[0m\r\u001B[0m\u001B[J\r\u001B[0m\u001B[?12l\u001B[?25h\u001B[?25l\r\u001B[0m\u001B[?12l\u001B[?25h"

X

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