Hi, On Thu, Sep 13, 2012 at 11:31 AM, Matthew Brett <matthew.br...@gmail.com> wrote: > On Wed, Sep 12, 2012 at 4:19 PM, Nathaniel Smith <n...@pobox.com> wrote: >> On Wed, Sep 12, 2012 at 2:46 PM, Matthew Brett <matthew.br...@gmail.com> >> wrote: >>> Hi, >>> >>> I just noticed that this works for numpy 1.6.1: >>> >>> In [36]: np.concatenate(([2, 3], [1]), 1) >>> Out[36]: array([2, 3, 1]) >>> >>> but the beta release branch: >>> >>> In [3]: np.concatenate(([2, 3], [1]), 1) >>> --------------------------------------------------------------------------- >>> IndexError Traceback (most recent call last) >>> /Users/mb312/<ipython-input-3-0fa244c8aaa8> in <module>() >>> ----> 1 np.concatenate(([2, 3], [1]), 1) >>> >>> IndexError: axis 1 out of bounds [0, 1) >>> >>> In the interests of backward compatibility maybe it would be better to >>> raise a warning for this release, rather than an error? >> >> Yep, that'd be a good idea. Want to write a patch? :-) > > https://github.com/numpy/numpy/pull/440
Thinking about the other thread, and the 'number of elements' check, I noticed this: In [51]: np.__version__ Out[51]: '1.6.1' In [52]: r4 = range(4) In [53]: r3 = range(3) In [54]: np.concatenate((r4, r3), None) Out[54]: array([0, 1, 2, 3, 0, 1, 2]) but: In [46]: np.__version__ Out[46]: '1.7.0rc1.dev-ea23de8' In [47]: np.concatenate((r4, r3), None) --------------------------------------------------------------------------- ValueError Traceback (most recent call last) /Users/mb312/tmp/<ipython-input-47-e354b8880702> in <module>() ----> 1 np.concatenate((r4, r3), None) ValueError: all the input arrays must have same number of elements The change requiring the same number of elements appears to have been added explicitly by Mark in commit 9194b3af . Mark - what was the reason for that check? Best, Matthew _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
