Hi, The result of scipy.test('fast') is an infinite loop. What is the reason for that ? Python 2.1.2 (#1, Feb 25 2002, 18:04:21) [GCC 2.95.3 20010315 (SuSE)] on linux2 Type "copyright", "credits" or "license" for more information. >>> import scipy >>> scipy.__version__ '0.2.0_alpha_139.4230' Nils