#19816: AlarmInterrupt in sage.rings.integer.Integer.divisors
-----------------------------+----------------------------
Reporter: vbraun | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.0
Component: number theory | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
-----------------------------+----------------------------
Reported at https://groups.google.com/d/msg/sage-release/KrpyE8h-
UO4/oW9r8EeKCQAJ
{{{
./sage -t src/sage/rings/integer.pyx
too many failed tests, not using stored timings
Running doctests with ID 2015-12-31-11-59-48-9f43f0a3.
Git branch: develop
Using --optional=mpir,python2,sage
Doctesting 1 file.
sage -t src/sage/rings/integer.pyx
**********************************************************************
File "src/sage/rings/integer.pyx", line 2622, in
sage.rings.integer.Integer.divisors
Failed example:
6.divisors()
Exception raised:
Traceback (most recent call last):
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest sage.rings.integer.Integer.divisors[1]>", line 1, in
<module>
Integer(6).divisors()
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/rich_output/display_manager.py", line 745, in
displayhook
plain_text, rich_output = self._rich_output_formatter(obj, dict())
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/rich_output/display_manager.py", line 610, in
_rich_output_formatter
plain_text = self._backend.plain_text_formatter(obj,
**rich_repr_kwds)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/rich_output/backend_base.py", line 305, in
plain_text_formatter
plain_text = self._apply_pretty_printer(SagePrettyPrinter, obj)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/rich_output/backend_base.py", line 250, in
_apply_pretty_printer
printer.pretty(obj)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/display/pretty_print.py", line 147, in pretty
ok = representation(obj, self, cycle)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/sage/repl/display/fancy_repr.py", line 157, in __call__
pretty_repr(obj, p, cycle)
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/IPython/lib/pretty.py", line 550, in inner
p.text(',')
File "/64bitdev/storage/sage-git_develop/sage/local/lib/python2.7
/site-packages/IPython/lib/pretty.py", line 211, in text
self.output.write(obj)
File "/64bitdev/storage/sage-
git_develop/sage/local/lib/python/StringIO.py", line 213, in write
_complain_ifclosed(self.closed)
File "sage/ext/interrupt/interrupt.pyx", line 204, in
sage.ext.interrupt.interrupt.sage_python_check_interrupt
(/64bitdev/storage/sage-
git_develop/sage/src/build/cythonized/sage/ext/interrupt/interrupt.c:1904)
sig_check()
File "sage/ext/interrupt/interrupt.pyx", line 91, in
sage.ext.interrupt.interrupt.sig_raise_exception (/64bitdev/storage/sage-
git_develop/sage/src/build/cythonized/sage/ext/interrupt/interrupt.c:970)
raise AlarmInterrupt
AlarmInterrupt
**********************************************************************
1 item had failures:
1 of 21 in sage.rings.integer.Integer.divisors
[1055 tests, 1 failure, 11.65 s]
----------------------------------------------------------------------
sage -t src/sage/rings/integer.pyx # 1 doctest failed
----------------------------------------------------------------------
Total time for all tests: 12.2 seconds
cpu time: 5.2 seconds
cumulative wall time: 11.6 seconds
}}}
This is because the preceeding doctest
{{{
sage: n = prod(primes_first_n(9))
sage: try:
....: alarm(1e-5)
....: _ = n._pari_divisors_small()
....: except AlarmInterrupt:
....: pass
}}}
is too quick and does not catch the alarm
--
Ticket URL: <http://trac.sagemath.org/ticket/19816>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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