Bug 600329

Summary: Importing sympy fails with: ImportError: No module named libmpf
Product: [Fedora] Fedora Reporter: Tadej Janež <tadej.j>
Component: sympyAssignee: Conrad Meyer <cse.cem+redhatbugz>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 13CC: cse.cem+redhatbugz, jamatos
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OS: Linux   
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Last Closed: 2010-08-28 08:07:35 UTC Type: ---
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Description Tadej Janež 2010-06-04 13:01:42 UTC
Description of problem:
I recently upgraded Fedora to version 13 and SymPy stopped working.

Here is the traceback:
>>> import sympy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.6/site-packages/sympy/__init__.py", line 22, in <module>
    from sympy.core import *
  File "/usr/lib/python2.6/site-packages/sympy/core/__init__.py", line 4, in <module>
    from basic import Basic, S, C, sympify
  File "/usr/lib/python2.6/site-packages/sympy/core/basic.py", line 2497, in <module>
    from symbol import Wild, Symbol
  File "/usr/lib/python2.6/site-packages/sympy/core/symbol.py", line 293, in <module>
    from sympify import sympify
  File "/usr/lib/python2.6/site-packages/sympy/core/sympify.py", line 191, in <module>
    from numbers import Integer, Real
  File "/usr/lib/python2.6/site-packages/sympy/core/numbers.py", line 5, in <module>
    import mpmath.libmpf as mlib
ImportError: No module named libmpf

Version-Release number of selected component (if applicable):
sympy-0.6.6-3.fc13.noarch

How reproducible:
Always

Additional info:
Upon further investigation, I found libmpf module on my system:
/usr/lib/python2.6/site-packages/mpmath/libmp/libmpf.py

So, it looks like the libmpf module changed its location from mpmath/libmpf.py to mpmath/libmp/libmpf.py and the rest of the SymPy code hasn't been updated yet?

Comment 1 José Matos 2010-08-28 08:07:35 UTC
A large discussion with the cause and possible solution(s) is going on #602431 so I am closing this bug as duplicate.

FWIW you are right about the problem. :-)

*** This bug has been marked as a duplicate of bug 602431 ***