[Numpy-discussion] nan, warning and error modes

[David Cournapeau]

Robert Kern wrote:
> David Cournapeau wrote:
>   
>> Hi,
>>
>>     I am developing some numpy code, which sometimes fail because of 
>> nan. This is likely to be due to some bad coding on my side, and as such 
>> any NaN is a bug for this particular piece of code.
>>     Is there a way to get a warning when the first Nan is detected in 
>> the code (or even a faulty assertion) ? It looks like there are some 
>> variables/functions related to that in numpy, but I didn't find any 
>> useful document on the matter, either in the numpy book nor on the scipy 
>> website.
>>     
>
> seterr(invalid='warning')
>
> Described in section "9.1.4 Error Handling" of the _Guide to NumPy_ (dated
> 2006-12-07).
>
>   
Well, my bad, even if I don't have this version, this section is present 
in my own version.... I looked at the wrong keywords,

thank you,

David