[Numpy-discussion] numpy.test(): invalid value encountered in {isinf, divide, power, ...}

David Cournapeau cournape@gmail....
Thu Jan 21 16:27:49 CST 2010


On Fri, Jan 22, 2010 at 7:14 AM, David Cournapeau <cournape@gmail.com> wrote:
> On Fri, Jan 22, 2010 at 12:06 AM, Charles R Harris
> <charlesr.harris@gmail.com> wrote:
>>
>>
>> On Thu, Jan 21, 2010 at 3:03 AM, David Cournapeau <cournape@gmail.com>
>> wrote:
>>>
>>> On Thu, Jan 21, 2010 at 6:23 PM, Pauli Virtanen <pav+sp@iki.fi> wrote:
>>> > Wed, 20 Jan 2010 16:57:01 -0500, Darren Dale wrote:
>>> > [clip]
>>> >> Warning: invalid value encountered in isinf Warning: invalid value
>>> >> encountered in isfinite
>>> > [clip]
>>> >
>>> > This is because of changed seterr() default values.
>>> >
>>> > IMHO, the 'print' default is slightly worse than the previous 'ignore'.
>>> > Personally, I don't see great value in the "invalid value encountered"
>>> > reports that are appear every time a nan is generated...
>>>
>>> I thought it was agreed that the default would be changed to warnings
>>> for 1.5.0 ?
>>>
>>
>> It was. Well, it was agreed that the change shouldn't be made in 1.4 anyway.
>> I'm starting to have second thoughts also. Not so much because of the
>> messages emitted by the tests, but because I suspect a lot of users will be
>> shocked, shocked, when their old applications fill the screen with messages.
>
> Hence changing to warning: it would appear only once per location, and
> can be filtered. And filling was what happened before it was changed
> by accident so that long ago anyway.

sorry, I mean it was the default not that long ago before it was
changed by accident,

David


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