...

...

...

assert_almost_equal TypeError: Cannot cast array data from dtype('complex128') to

The tests pass on my machine, but I see that the TravisCI builds are giving assertion fails (on my own test) with python 3.3 and 3.5 of the form: dtype('float64') according to the rule 'safe'

The problem then is probably here <https://github.com/numpy/numpy/pull/6872/files#diff-45aacfd88a495829ee10815c...> .

You may want to throw in a PyErr_Clear() <https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Clear> when the conversion of the fp array to NPY_DOUBLE fails before trying with NPY_CDOUBLE, and check if it goes away.

Thanks for your tip Jaime, you were exactly right. Unfortunately I only saw your message after and addressed the problem in a different way to your suggestion (passing in a flag instead). It'd be great to have your input on the PR though (maybe github or pm me, to avoid flooding the mailing list). Best, Peter