Gael Varoquaux wrote:

Hi,

Can an editor add me please to the editor page, I would like to rename a page.

Done. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco

Hi I accidentally passed an 1-element array to odeint and got #--------------------------------------# # y''(t) + y(t) == 0 def dYdt(Y, t0): y0 = Y[0] y1 = Y[1] return array([y1, -y0]) ##t = arange(0, 2*pi, .1) t = array([1.0]) sol = odeint(dYdt, array([3.0,0.0]), t, full_output = 1, rtol = 1e-7, atol = 1e-7) Traceback (most recent call last): File "odeint_example.py", line 43, in ? sol = odeint(dYdt, array([3.0,0.0]), t, full_output = 1, rtol = 1e-7, atol = 1e-7) File "/usr/local//lib/python2.4/site-packages/scipy/integrate/odepack.py", line 132, in odeint output[1]['message'] = _msgs[output[-1]] KeyError: 1 #--------------------------------------# I found my error rather quick but just want to note that the err message wasn't really helpful. Maybe odeint could check the shape of its input. -- cheers, steve Random number generation is the art of producing pure gibberish as quickly as possible.