[Numpy-discussion] RuntimeWarning: divide by zero encountered in log

[Jonathan Helmus]

On 05/16/2013 01:42 PM, Neal Becker wrote:
> Is there a way to get a traceback instead of just printing the
> line that triggered the error?
>
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Neal,

     Look at the numpy.seterr function.  You can use it to change how 
floating-point errors are handled, including raising a 
FloatingPointError with a traceback as opposed to printing a 
RuntimeWarning.

Example

$ cat foo.py
import numpy as np

np.seterr(divide='raise')

a = np.array([1,1,1], dtype='float32')
a / 0

$ python foo.py
Traceback (most recent call last):
   File "test.py", line 6, in <module>
     a / 0
FloatingPointError: divide by zero encountered in divide

Cheers,

     - Jonathan Helmus