#16624: upgrade sympy to version 0.7.5
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.3
Component: packages: | Resolution:
standard | Merged in:
Keywords: | Reviewers:
Authors: Ralf Stephan | Work issues:
Report Upstream: N/A | Commit:
Branch: | c280b72b302616eef2d5e0b94848fe8a02af091b
u/rws/upgrade_sympy_to_version_0_7_5| Stopgaps:
Dependencies: |
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Comment (by rws):
Even with sympy-0.7.4 in a fresh Sage I get
{{{
sage: import sage.libs.mpmath.ext_main as _mpf_module
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
<ipython-input-1-06f00c8c1fbc> in <module>()
----> 1 import sage.libs.mpmath.ext_main as _mpf_module
/home/ralf/sage/ext_main.pyx in init sage.libs.mpmath.ext_main
(build/cythonized/sage/libs/mpmath/ext_main.c:28725)()
/home/ralf/sage/local/lib/python2.7/site-packages/mpmath/__init__.py in
<module>()
4
5 from .ctx_fp import FPContext
----> 6 from .ctx_mp import MPContext
7 from .ctx_iv import MPIntervalContext
8
/home/ralf/sage/local/lib/python2.7/site-packages/mpmath/ctx_mp.py in
<module>()
47 from sage.libs.mpmath.ext_main import Context as BaseMPContext
48 # pickle hack
---> 49 import sage.libs.mpmath.ext_main as _mpf_module
50 else:
51 from .ctx_mp_python import PythonMPContext as BaseMPContext
AttributeError: 'module' object has no attribute 'ext_main'
}}}
This and the 0.7.5 failure both can be cured for example with
{{{
--- mpmath/libmp/backend.py~ 2013-08-08 14:49:58.000000000 +0200
+++ mpmath/libmp/backend.py 2014-07-11 08:54:28.759388954 +0200
@@ -71,6 +71,7 @@
try:
import sage.all
import sage.libs.mpmath.utils as _sage_utils
+ import sage.libs.mpmath.ext_main as _mpf_module
sage = sage.all
sage_utils = _sage_utils
BACKEND = 'sage'
}}}
So it seems `ext_main` has to be imported in the right place and there was
somewhere an import in `sympy-0.7.4` that made that version work but that
was changed in `0.7.5`. It does not work to simply catch the error and
import again, while it works when in a fresh Sage with `0.7.4`.
--
Ticket URL: <http://trac.sagemath.org/ticket/16624#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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