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| author | Nathaniel J. Smith <njs@pobox.com> | 2015-10-18 19:58:03 +0000 |
|---|---|---|
| committer | Nathaniel J. Smith <njs@pobox.com> | 2015-10-18 19:58:03 +0000 |
| commit | 3ddaa592d855597ae8afe13b3848ac032e693295 (patch) | |
| tree | 38ab3f7b85cbb34c428329487d80cbae99b96cc7 | |
| parent | 8cf83ee92aaba5a802799b752621f7c413cace34 (diff) | |
| parent | 037d2840ce0763bec31715e792fb30001bc80ed5 (diff) | |
| download | numpy-3ddaa592d855597ae8afe13b3848ac032e693295.tar.gz | |
Merge pull request #6499 from charris/update-1.10.0-notes
DOC: Mention that default casting for inplace operations has changed.
| -rw-r--r-- | doc/release/1.10.0-notes.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/release/1.10.0-notes.rst b/doc/release/1.10.0-notes.rst index 75530db4e..0341d2a6a 100644 --- a/doc/release/1.10.0-notes.rst +++ b/doc/release/1.10.0-notes.rst @@ -50,6 +50,16 @@ See below for more details on these changes. Compatibility notes =================== +Default casting rule change +~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Default casting for inplace operations has changed to ``'same_kind'``. For +instance, if n is an array of integers, and f is an array of floats, then +``n += f`` will result in a ``TypeError``, whereas in previous Numpy +versions the floats would be silently cast to ints. In the unlikely case +that the example code is not an actual bug, it can be updated in a backward +compatible way by rewriting it as ``np.add(n, f, out=n, casting='unsafe')``. +The old ``'unsafe'`` default has been deprecated since Numpy 1.7. + numpy version string ~~~~~~~~~~~~~~~~~~~~ The numpy version string for development builds has been changed from |