#19622: Automatic error message when packages are not installed
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Reporter: jdemeyer | Owner:
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.10
Component: user interface | Resolution:
Keywords: | Merged in:
Authors: Jeroen Demeyer | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jdemeyer/better_error_message_when__bliss__is_not_installed|
0c5c38a6808bb7cb4df7595d3370aa204e9bcd75
Dependencies: | Stopgaps:
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Comment (by jdemeyer):
Replying to [comment:18 jmantysalo]:
> OK. So this is off-topic, but still: Can you tell what to modify if I
want to play with this kind of things?
See `PackageNotFoundError` in `src/sage/misc/package.py`.
> As an artificial example, print "Aarghs!" after division by zero.
That's a different question since `ZeroDivisionError` is a builtin Python
exception which we cannot just change. That's the advantage of using a
custom exception class for `PackageNotFoundError`: you can easily change
the string which is displayed.
Now, you can probably still play with IPython to customize displaying of
exceptions in general, but then that's a very different story.
--
Ticket URL: <http://trac.sagemath.org/ticket/19622#comment:19>
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