Hi Here is the output (2 failures, 2 errors) of the tests on my box Python 2.3.3 (#1, Apr 6 2004, 01:47:39) [GCC 3.3.3 (SuSE Linux)] on linux2 gcc version 3.3.3

...

...

scipy.__version__ '0.3.1_287.4340'

====================================================================== ERROR: check_defective1 (scipy.linalg.matfuncs.test_matfuncs.test_signm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/scipy/linalg/tests/test_matfuncs.py", lin e 48, in check_defective1 r = signm(a) File "/usr/lib/python2.3/site-packages/scipy/linalg/matfuncs.py", line 267, in s ignm iS0 = inv(S0) File "/usr/lib/python2.3/site-packages/scipy/linalg/basic.py", line 176, in inv a1 = asarray_chkfinite(a) File "/usr/lib/python2.3/site-packages/scipy_base/function_base.py", line 33, in asarray_chkfinite raise ValueError, "Array must not contain infs or nans." ValueError: Array must not contain infs or nans. ====================================================================== ERROR: check_defective3 (scipy.linalg.matfuncs.test_matfuncs.test_signm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/scipy/linalg/tests/test_matfuncs.py", lin e 69, in check_defective3 r = signm(a) File "/usr/lib/python2.3/site-packages/scipy/linalg/matfuncs.py", line 267, in s ignm iS0 = inv(S0) File "/usr/lib/python2.3/site-packages/scipy/linalg/basic.py", line 176, in inv a1 = asarray_chkfinite(a) File "/usr/lib/python2.3/site-packages/scipy_base/function_base.py", line 33, in asarray_chkfinite raise ValueError, "Array must not contain infs or nans." ValueError: Array must not contain infs or nans. ====================================================================== FAIL: check_nils_20Feb04 (scipy.linalg.basic.test_basic.test_solve) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/scipy/linalg/tests/test_basic.py", line 1 12, in check_nils_20Feb04 assert_array_almost_equal(X,Ainv) File "/usr/lib/python2.3/site-packages/scipy_test/testing.py", line 684, in asse rt_array_almost_equal assert cond,\ AssertionError: Arrays are not almost equal (mismatch 50.0%): Array 1: [[-43.6032104+13.1816127j 18.994452 +15.8269203j] [ 37.1899302 +2.3715189j -9.3834051-17.4805578j]] Array 2: [[-27.7762901 -5.8128393j 18.994452 +15.8269203j] [ 19.7093724+11.754924j -9.3834051-17.4805578j]] ====================================================================== FAIL: check_cdf (scipy.stats.distributions.test_distributions.test_gumbel_l) ---------------------------------------------------------------------- Traceback (most recent call last): File "<string>", line 10, in check_cdf AssertionError: D = 0.292383217812; pval = 0.00455751677656; alpha = 0.01 args = () ---------------------------------------------------------------------- Ran 972 tests in 2.078s FAILED (failures=2, errors=2) -- Martin Lüthi answer@tnoo.net