Hi, Our (nipy's) test suite just failed with the upgrade to numpy 1.13, and the cause boiled down to this:
``` import numpy as np poly = np.poly1d([1]) poly.c[0] *= 2 print(poly.c) ``` Numpy 1.12 gives (to me) expected output: [2] Numpy 1.13 gives (to me) unexpected output: [1] The problem is caused by the fact that the coefficients are now a *copy* of the actual coefficient array - I think in an attempt to stop us modifying the coefficients directly. I can't see any deprecation warnings with `-W always`. The pain point here is that code that used to give the right answer has now (I believe silently) switched to giving the wrong answer. Cheers, Matthew _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@python.org https://mail.python.org/mailman/listinfo/numpy-discussion
