Dear Vincent,
Please find *Python* Jupyter notebook result below:
---------------------------------------------------------------------------
SignalError Traceback (most recent call last)
<ipython-input-1-7806d766b198> in <module>()
1 import cypari2
2 pari = cypari2.Pari()
----> 3 pari(109604757131194562205071319966444535807).issquarefree()
cypari2/gen.pyx in cypari2.gen.Gen.issquarefree()
SignalError: Segmentation fault
Roland
Op zondag 3 maart 2019 18:52:16 UTC+1 schreef vdelecroix:
>
> Cher Roland,
>
> Just to be sure, could you try in a *Python* Jupyter notebook to run
> a cell with the following content
>
> import cypari2
> pari = cypari2.Pari()
> pari(109604757131194562205071319966444535807).issquarefree()
>
> (I expect the very same error to occur, but it is better to double
> check)
>
> Vincent
>
> Le 03/03/2019 à 18:48, Rolandb a écrit :
> > Dear Vincent,
> >
> > Indeed, sagecell <https://sagecell.sagemath.org/> gives the correct
> answer.
> >
> > I'm not an expert, so whether I use cygwin I do not know.
> >
> > Jupyter and Notebook with Windows 8.6 give both segfault.
> >
> > Notebook 8.6:
> >
> > Traceback (most recent call last):
> > File "<stdin>", line 1, in <module>
> > File "_sage_input_3.py", line 10, in <module>
> > exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8
> -*-\\n" +
> _support_.preparse_worksheet_cell(base64.b64decode("YWE9MTA5NjA0NzU3MTMxMTk0NTYyMjA1MDcxMzE5OTY2NDQ0NTM1ODA3CnByaW50IGlzX3NxdWFyZWZyZWUoYWEp"),globals())+"\\n");
>
> execfile(os.path.abspath("___code___.py"))
> > File "", line 1, in <module>
> >
> > File "/tmp/tmpXtAFoN/___code___.py", line 4, in <module>
> > exec compile(u'print is_squarefree(aa)
> > File "", line 1, in <module>
> >
> > File
> "/opt/sagemath-8.6/local/lib/python2.7/site-packages/sage/arith/misc.py",
> line 2852, in is_squarefree
> > return e.is_squarefree()
> > File "sage/rings/integer.pyx", line 5859, in
> sage.rings.integer.Integer.is_squarefree
> (build/cythonized/sage/rings/integer.c:35954)
> > File "cypari2/gen.pyx", line 3347, in cypari2.gen.Gen.issquarefree
> > cysignals.signals.SignalError: Segmentation fault
> >
> >
> > Sage 6.9 notebook (via Window, thus 32 bit) yields the correct answer!
> >
> > Vincent, I hope this information helps.
> >
> > Roland
> >
> >
> >
> > Op zondag 3 maart 2019 11:53:17 UTC+1 schreef vdelecroix:
> >>
> >> Hi,
> >>
> >> I can not reproduce (I am using Linux). Let me copy your traceback
> >> that was a mess because of linebreaks
> >>
> >>
> ---------------------------------------------------------------------------
> >>
> >> SignalError Traceback (most recent call
> >> last)
> >> <ipython-input-35-801031bbe3a3> in <module>()
> >> 1 aa=Integer(109604757131194562205071319966444535807)---->
> >> 2 print is_squarefree(aa)
> >> /opt/sagemath-8.6/local/lib/python2.7/site-packages/sage/arith/misc.pyc
> >> in is_squarefree(n)
> >> 2850
> >> 2851 try:->
> >> 2852 return e.is_squarefree()
> >> 2853 except AttributeError:
> >> 2854 pass
> >>
> /opt/sagemath-8.6/local/lib/python2.7/site-packages/sage/rings/integer.pyx
> >> in sage.rings.integer.Integer.is_squarefree
> >> (build/cythonized/sage/rings/integer.c:35954)()
> >> 5857 False
> >> 5858 """->
> >> 5859 return self.__pari__().issquarefree()
> >> 5860
> >> 5861 cpdef __pari__(self):
> >> cypari2/gen.pyx in cypari2.gen.Gen.issquarefree()
> >> SignalError: Segmentation fault
> >>
> >> This seems to be a problem with cypari2 in cygwin (could you confirm
> >> that you are using cygwin?). If so, you should try to reproduce the
> >> problem without Sage by launching Python inside cygwin and then
> >>
> >> >>> import cypari2
> >> >>> pari = cypari2.Pari()
> >> >>> pari(109604757131194562205071319966444535807).issquarefree()
> >>
> >> Vincent
> >>
> >> Le 03/03/2019 à 11:44, Rolandb a écrit :
> >>> Hi, the following result is probably not intended:
> >>>
> >>> Sage 8.6 Windows
> >>>
> >>> aa=109604757131194562205071319966444535807
> >>> print is_squarefree(aa)
> >>>
> >>>
> >>
> ---------------------------------------------------------------------------SignalError
>
>
> >> Traceback (most recent call
> >> last)<ipython-input-35-801031bbe3a3> in <module>() 1
> >> aa=Integer(109604757131194562205071319966444535807)----> 2 print
> >> is_squarefree(aa)
> >>>
> /opt/sagemath-8.6/local/lib/python2.7/site-packages/sage/arith/misc.pyc
> >> in is_squarefree(n) 2850 2851 try:-> 2852 return
> >> e.is_squarefree() 2853 except AttributeError: 2854 pass
> >>>
> >>
> /opt/sagemath-8.6/local/lib/python2.7/site-packages/sage/rings/integer.pyx
> >> in sage.rings.integer.Integer.is_squarefree
> >> (build/cythonized/sage/rings/integer.c:35954)() 5857
> False
> >> 5858 """-> 5859 return self.__pari__().issquarefree()
> >> 5860 5861 cpdef __pari__(self):
> >>> cypari2/gen.pyx in cypari2.gen.Gen.issquarefree()
> >>> SignalError: Segmentation fault
> >>>
> >>>
> >>> Roland
> >>>
> >>>
> >>
> >
>
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