Hello, I've come across what is probably a bug in size check for large arrays:

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import numpy z1 = numpy.zeros((255*256,256*256)) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: dimensions too large. z2 = numpy.zeros((256*256,256*256)) z2.shape (65536, 65536) z2[0] = 0 Segmentation fault

Note that z1 size is smaller than z2 but z2 is not told that its dimensions are too large. This has been tested with numpy 1.3.0. Nicolas