#8734: make sage variables unique in maxima
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Reporter: jason | Owner: jason
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.3
Component: interfaces | Resolution:
Keywords: | Merged in:
Authors: Jason Grout, Ralf | Reviewers: Volker Braun, Paul
Stephan | Zimmerman, Karl-Dieter Crisman
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/ticket/8734-1 | 793bb058a06b3dfb31c6029f6c30960d1dee8cc7
Dependencies: #15530 | Stopgaps:
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Changes (by rws):
* dependencies: => #15530
Comment:
All the following is modulo my Python newbieness.
What I wrote about legal tricks to preserve the traceback would work IF
Sage was purely Python-2 or Python-3. With the momentary transition to
Py-3, the form `raise Error, message, traceback` of the raise command is
considered a bug. OTOH there is no way to supply two arguments in
parentheses. Finally, the form `raise Error from previous_error` is only
possible with Py-3.
Secondly, to ask interactively for a missing assumption a message has to
be given in the terminal different from the error message tied to the
original `RuntimeError`. So, simply re-raising is not an option if you do
not like `RuntimeError: ECL says: Maxima asks: Is _SAGE_VAR_a an
integer?`.
So, in my opinion, unless someone comes up with a better solution, this
ticket will have to wait until Sage is Py-3.
--
Ticket URL: <http://trac.sagemath.org/ticket/8734#comment:48>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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