On Wed, Aug 26, 2015 at 7:32 AM, Charles R Harris <charlesr.har...@gmail.com
> wrote:
>
>
> On Wed, Aug 26, 2015 at 7:31 AM, Charles R Harris <
> charlesr.har...@gmail.com> wrote:
>
>>
>>
>> On Wed, Aug 26, 2015 at 7:11 AM, Antoine Pitrou <solip...@pitrou.net>
>> wrote:
>>
>>> On Tue, 25 Aug 2015 10:26:02 -0600
>>> Charles R Harris <charlesr.har...@gmail.com> wrote:
>>> > Hi All,
>>> >
>>> > The silence after the 1.10 beta has been eerie. Consequently, I'm
>>> thinking
>>> > of making a first release candidate this weekend. If you haven't yet
>>> tested
>>> > the beta, please do so. It would be good to discover as many problems
>>> as we
>>> > can before the first release.
>>>
>>> Has typing of ufunc parameters become much stricter? I can't find
>>> anything in the release notes, but see (1.10b1):
>>>
>>> >>> arr = np.linspace(0, 5, 10)
>>> >>> out = np.empty_like(arr, dtype=np.intp)
>>> >>> np.round(arr, out=out)
>>> Traceback (most recent call last):
>>> File "<stdin>", line 1, in <module>
>>> File
>>> "/home/antoine/np110/lib/python3.4/site-packages/numpy/core/fromnumeric.py",
>>> line 2778, in round_
>>> return round(decimals, out)
>>> TypeError: ufunc 'rint' output (typecode 'd') could not be coerced to
>>> provided output parameter (typecode 'l') according to the casting rule
>>> ''same_kind''
>>>
>>>
>>> It used to work (1.9):
>>>
>>> >>> arr = np.linspace(0, 5, 10)
>>> >>> out = np.empty_like(arr, dtype=np.intp)
>>> >>> np.round(arr, out=out)
>>> array([0, 1, 1, 2, 2, 3, 3, 4, 4, 5])
>>> >>> out
>>> array([0, 1, 1, 2, 2, 3, 3, 4, 4, 5])
>>>
>>
>> The default casting mode has been changed. I think this has been raising
>> a warning since 1.7 and was mentioned as a future change in 1.10, but you
>> are right, it needs to be mentioned in the 1.10 release notes.
>>
>
> Make that warned of in the 1.9.0 release notes.
>
>
Here it is in 1.9.0 with deprecation warning made visible.
```
In [3]: import warnings
In [4]: warnings.simplefilter('always')
In [5]: arr = np.linspace(0, 5, 10)
In [6]: out = np.empty_like(arr, dtype=np.intp)
In [7]: np.round(arr, out=out)
/home/charris/.local/lib/python2.7/site-packages/numpy/core/fromnumeric.py:2640:
DeprecationWarning: Implicitly casting between incompatible kinds. In a
future numpy release, this will raise an error. Use casting="unsafe" if
this is intentional.
return round(decimals, out)
Out[7]: array([0, 1, 1, 2, 2, 3, 3, 4, 4, 5])
```
Chuck
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