[NumPy-Tickets] [NumPy] #1605: Bug in numpy version 1.5.x

[NumPy Trac]

#1605: Bug in numpy version 1.5.x
--------------------+-------------------------------------------------------
 Reporter:  maldun  |       Owner:  somebody
     Type:  defect  |      Status:  new     
 Priority:  normal  |   Milestone:  1.5.1   
Component:  Other   |     Version:  1.5.0   
 Keywords:  sage    |  
--------------------+-------------------------------------------------------
 We tried to upgrade NumPy in Sage. We managed to get 1.4.1 working. (see
 http://trac.sagemath.org/sage_trac/ticket/9808 for more info)
 numpy 1.5.0 should work also, but we have problems with some of the
 doctests. Example:

 {{{
        sage -t -valgrind
 "devel/sage/sage/rings/polynomial/polynomial_element.pyx"
 Total time for all tests: 716.4 seconds
 maldun@zauberbuch:~/sage/sage-4.5.2$ sage -t  -valgrind
 "devel/sage/sage/rings/polynomial/real_roots.pyx
 > "
 ERROR: File ./devel/sage/sage/rings/polynomial/real_roots.pyx
  is missing

 ----------------------------------------------------------------------
 The following tests failed:


         ./devel/sage/sage/rings/polynomial/real_roots.pyx
  # File not found
 Total time for all tests: 0.0 seconds
 maldun@zauberbuch:~/sage/sage-4.5.2$ sage -t  -valgrind
 "devel/sage/sage/rings/polynomial/real_roots.pyx"
 sage -t -valgrind "devel/sage/sage/rings/polynomial/real_roots.pyx"
 **********************************************************************
 File
 "/home/maldun/sage/sage-4.5.2/devel/sage/sage/rings/polynomial/real_roots.pyx",
 line 1819, in __main__.example_76
 Failed example:
     oc.find_roots()###line 3064:_sage_    >>> oc.find_roots()
 Expected nothing
 Got:
     doctest:1: RuntimeWarning: tp_compare didn't return -1 or -2 for
 exception
 **********************************************************************
 File
 "/home/maldun/sage/sage-4.5.2/devel/sage/sage/rings/polynomial/real_roots.pyx",
 line 1840, in __main__.example_77
 Failed example:
     oc.find_roots()###line 3085:_sage_    >>> oc.find_roots()
 Expected nothing
 Got:
     doctest:1: RuntimeWarning: tp_compare didn't return -1 or -2 for
 exception
 **********************************************************************
 File
 "/home/maldun/sage/sage-4.5.2/devel/sage/sage/rings/polynomial/real_roots.pyx",
 line 1934, in __main__.example_80
 Failed example:
     oc.find_roots()###line 3157:_sage_    >>> oc.find_roots()
 Expected nothing
 Got:
     doctest:1: RuntimeWarning: tp_compare didn't return -1 or -2 for
 exception
 **********************************************************************
 File
 "/home/maldun/sage/sage-4.5.2/devel/sage/sage/rings/polynomial/real_roots.pyx",
 line 2320, in __main__.example_98
 Failed example:
     real_roots(x**Integer(5) * (x**Integer(2) - Integer(9999))**Integer(2)
 - Integer(1))###line 3870:_sage_    >>> real_roots(x^5 * (x^2 - 9999)^2 -
 1)
 Expected:
     [((-29274496381311/9007199254740992,
 419601125186091/2251799813685248), 1),
 ((2126658450145849453951061654415153249597/21267647932558653966460912964485513216,
 4253316902721330018853696359533061621799/42535295865117307932921825928971026432),
 1),
 ((1063329226287740282451317352558954186101/10633823966279326983230456482242756608,
 531664614358685696701445201630854654353/5316911983139663491615228241121378304),
 1)]
 Got:
     doctest:1: RuntimeWarning: tp_compare didn't return -1 or -2 for
 exception
     [((-29274496381311/9007199254740992,
 419601125186091/2251799813685248), 1),
 ((2126658450145849453951061654415153249597/21267647932558653966460912964485513216,
 4253316902721330018853696359533061621799/42535295865117307932921825928971026432),
 1),
 ((1063329226287740282451317352558954186101/10633823966279326983230456482242756608,
 531664614358685696701445201630854654353/5316911983139663491615228241121378304),
 1)]
 **********************************************************************
 4 items had failures:
    1 of  10 in __main__.example_76
    1 of   9 in __main__.example_77
    1 of  10 in __main__.example_80
    1 of  44 in __main__.example_98
 ***Test Failed*** 4 failures.
          [227.6 s]

 ----------------------------------------------------------------------
 The following tests failed:


         sage -t -valgrind
 "devel/sage/sage/rings/polynomial/real_roots.pyx"
 Total time for all tests: 227.6 seconds
 }}}

 without valgrind we get memory leak

 It seems that it is related to the following bug:
 http://groups.google.com/group/cython-
 users/browse_thread/thread/624c696293b7fe44

 If this problem can be solved we could move to numpy-1.5.0 in sage.

-- 
Ticket URL: <http://projects.scipy.org/numpy/ticket/1605>
NumPy <http://projects.scipy.org/numpy>
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