> On 10/18/10 - 06:47:25, François Bissey wrote:
> > After sympy I would like testing report on mpmath.
> >
> > mpmath has an interesting relationship with sage.
> > sage includes mpmath and if mpmath finds sage it uses bits of it.
> >
> > So I'd like to know what sage-on-gentoo users get when
> > they do "import mpmath" from a python2.6 shell.
> > I'd like reports of success as well as error along with
> > the version of sage installed (4.5.3, 4.6alpha3 or other).
> >
> > Thanks,
> > Francois
>
> Here with Sage 4.5.3 from a python shell; import sage.all, import sympy
> or import mpmath all produce the expected result - one is returned to
> the python prompt after the import. With Sage 4.6alpha3 if each import
> is performed from a separate python shell then each import returns
>
> Traceback (most recent call last):
> File "/usr/bin/sage-cleaner", line 25, in <module>
> DOT_SAGE = os.environ['DOT_SAGE']
> File "/usr/lib/python2.6/UserDict.py", line 22, in __getitem__
> raise KeyError(key)
> KeyError: 'DOT_SAGE'
>
> If from the same python shell the three imports are performed then only
> the first import returns the Traceback.
>
Thank you Steve,
Could you send me the result of
printenv | grep SAGE
from the machine running sage-4.5.3. For mpmath with sage-4.6alpha3
I was expecting this error:
>>> import mpmath
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/site-packages/mpmath/__init__.py", line 6, in
<module>
from ctx_mp import MPContext
File "/usr/lib/python2.6/site-packages/mpmath/ctx_mp.py", line 48, in
<module>
from sage.libs.mpmath.ext_main import Context as BaseMPContext
File "integer.pxd", line 9, in init sage.libs.mpmath.ext_main
(sage/libs/mpmath/ext_main.c:22894)
File "integer.pyx", line 165, in init sage.rings.integer
(sage/rings/integer.c:33926)
File "/usr/lib/python2.6/site-packages/sage/rings/infinity.py", line 200, in
<module>
import sage.rings.rational
File "rational.pyx", line 70, in init sage.rings.rational
(sage/rings/rational.c:25264)
File "real_mpfr.pyx", line 1, in init sage.rings.real_mpfr
(sage/rings/real_mpfr.c:31325)
File "complex_number.pxd", line 8, in init sage.libs.mpmath.utils
(sage/libs/mpmath/utils.c:7374)
File "complex_double.pxd", line 13, in init sage.rings.complex_number
(sage/rings/complex_number.c:18312)
File "complex_double.pyx", line 95, in init sage.rings.complex_double
(sage/rings/complex_double.c:16534)
File "/usr/lib/python2.6/site-packages/sage/rings/complex_field.py", line 89,
in ComplexField
C = ComplexField_class(prec)
File "/usr/lib/python2.6/site-packages/sage/rings/complex_field.py", line
187, in __init__
ParentWithGens.__init__(self, self._real_field(), ('I',), False, category =
Fields())
File "/usr/lib/python2.6/site-packages/sage/rings/complex_field.py", line
240, in _real_field
self.__real_field = real_mpfr.RealField(self._prec)
File "real_mpfr.pyx", line 267, in sage.rings.real_mpfr.RealField
(sage/rings/real_mpfr.c:4222)
TypeError: 'NoneType' object is unsubscriptable
>
----------------
I posted about it on the sage-release, where we talk about the sage-4.6 pre
releases, and no one else has the problem so far. If you don't have it either
that may be a problem on my machine.
Francois
