#17254: Upgrade to Singular-4-0-1
-------------------------------------+-------------------------------------
Reporter: jdemeyer | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.4
Component: packages: | Resolution:
standard | Merged in:
Keywords: | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | 3a512cd7e08e21a4a4e66bfe9179290601717ba0
u/jakobkroeker/ticket.17254.squashed| Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Comment (by john_perry):
Well, this is bad.
{{{
sage: R=PolynomialRing(GF(32003),'x',7)
sage: I = sage.rings.ideal.Cyclic(R,7).homogenize()
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
<ipython-input-2-59ae6a3e91c7> in <module>()
----> 1 I = sage.rings.ideal.Cyclic(R,Integer(7)).homogenize()
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/rings/ideal.pyc in Cyclic(R, n, homog, singular)
1607 n = R.ngens()
1608
-> 1609 singular.lib("poly")
1610 R2 = R.change_ring(RationalField())
1611 R2._singular_().set_ring()
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/singular.pyc in lib(self, lib, reload)
783 if not reload and lib in self.__libs:
784 return
--> 785 self.eval('LIB "%s"'%lib)
786 self.__libs.append(lib)
787
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/singular.pyc in eval(self, x, allow_semicolon,
strip, **kwds)
585 x += ';'
586
--> 587 s = Expect.eval(self, x, **kwds)
588
589 if s.find("error") != -1 or s.find("Segment fault") != -1:
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/expect.pyc in eval(self, code, strip,
synchronize, locals, allow_use_file, split_lines, **kwds)
1220 elif split_lines:
1221 return '\n'.join([self._eval_line(L,
allow_use_file=allow_use_file, **kwds)
-> 1222 for L in code.split('\n')
if L != ''])
1223 else:
1224 return self._eval_line(code,
allow_use_file=allow_use_file, **kwds)
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/expect.pyc in _eval_line(self, line,
allow_use_file, wait_for_prompt, restart_if_needed)
817 try:
818 if self._expect is None:
--> 819 self._start()
820 E = self._expect
821 try:
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/singular.pyc in _start(self, alt_message)
410 """
411 self.__libs = []
--> 412 Expect._start(self, alt_message)
413 # Load some standard libraries.
414 self.lib('general') # assumed loaded by
misc/constants.py
/Applications/sage-6.7/local/lib/python2.7/site-
packages/sage/interfaces/expect.pyc in _start(self, alt_message,
block_during_init)
427 # Change pexpect errors to RuntimeError
428 raise RuntimeError("unable to start %s because the
command %r failed: %s\n%s" %
--> 429 (self.name(), cmd, e,
self._install_hints()))
430 except BaseException:
431 self._expect = None
RuntimeError: unable to start singular because the command 'Singular -t
--ticks-per-sec 1000' failed: The command was not found or was not
executable: Singular.
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/17254#comment:50>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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