On Sun, May 8, 2011 at 3:15 PM, Paul Anton Letnes < paul.anton.let...@gmail.com> wrote:
> Hi, > > it seems that I have found a bug in numpy.ndarray. numpy 1.5.1, python > 2.7.1 from macports on mac os x 10.6.7. I got the same error on Fedora 14 > with numpy 1.4.1 and python 2.7. Appending a [0] to the last line solves the > problem. > > % python testcrash.py > > [14:13:27 on 11-05-08] > <type 'numpy.ndarray'> [ 12.+0.1j] > <type 'numpy.ndarray'> [ 1.+0.1j] > complex128 > Traceback (most recent call last): > File "testcrash.py", line 11, in <module> > A[0] = A[0] + (eps1 - eps2) > TypeError: can't convert complex to float > > % cat testcrash.py > #!/usr/bin/env python > > import numpy > > A = numpy.zeros(10, dtype=numpy.complex128) > eps1 = numpy.complex128([12.0 + 0.1j]) > eps2 = numpy.complex128([1.0 + 0.1j]) > It's the brackets, numpy.complex128([1.0 + 0.1j]) is a 1d array, not a scalar. The error message is less than helpful though. <snip> Chuck
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