[AstroPy] Capturing pyfits warnings
Bridgman, William T.
william.t.bridgman at nasa.gov
Wed Sep 15 12:28:45 EDT 2010
Beyond another package with a learning curve of limited use in our
environment, probably not. I occasionally use FV, but that is pretty
Because we work with so many datasets from a wide variety of missions
(Earth/geospace/solar) and often *combine* them to tell stories, we
have lots of packages installed - enough that we've had significant
name collisions and path problems between them.
On Sep 15, 2010, at 11:09 AM, Jim Vickroy wrote:
> Please excuse this non-Python proposal, but would it be worth
> considering FTOOLS (in particular fverify) to accomplish this task?
> -- jv
> Bridgman, William T. wrote:
>> If warnings are warnings, this runs fine.
>> If warnings are elevated to exceptions, the pyfits.open throws the
>> exception before loading fimg. The fimg.header access fails.
>> Putting fimg.header access inside the try: block doesn't help
>> either (of course).
>> Perhaps inside the except: block I could set warnings back from
>> exceptions to warnings and do pyfits.open again. I don't know that
>> much about python innards, but this sounds like something that would
>> cause other weird (stack?) problems as I examine the 22,000+ FITS
>> files in our data area.
>> On Sep 15, 2010, at 10:06 AM, jtaylor2 at stsci.edu wrote:
>>> I am not sure I understand exactly what is going on here, but if
>>> having the warnings module issue exceptions instead of warnings is
>>> causing another warning to be raised as an exception that you would
>>> like to remain as a warning, you can fix this by using
>>> filterwarnings and supplying a regular expression that matches just
>>> the warning that you want raised as an exception. In your case
>>> something like:
>>> warnings.filterwarnings('error',message='.*Warning: File may have
>>> If you contact me directly at jtaylor2 at stsci.edu with more
>>> details, especially if you can point me to a fits file that is
>>> causing the problem, I may be able to be of more help.
>>> Jim T.
>> Dr. William T."Tom" Bridgman Scientific Visualization
>> Global Science & Technology, Inc. NASA/Goddard Space Flight
>> Email: William.T.Bridgman at nasa.gov Code 610.3
>> Phone: 301-286-1346 Greenbelt, MD 20771
>> FAX: 301-286-1634 http://svs.gsfc.nasa.gov/
>> AstroPy mailing list
>> AstroPy at scipy.org
Dr. William T."Tom" Bridgman Scientific Visualization
Global Science & Technology, Inc. NASA/Goddard Space Flight
Email: William.T.Bridgman at nasa.gov Code 610.3
Phone: 301-286-1346 Greenbelt, MD 20771
FAX: 301-286-1634 http://svs.gsfc.nasa.gov/
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