[Bug 432459] [NEW] "clobber" fails when writing files

[Ole Streicher]

Public bug reported:

the following code fails for me if the output file already exists:
   
   >>> import pyfits
   >>> pyfits.PrimaryHDU().writeto('Map.fits', clobber='True')

   /var/lib/python-support/python2.6/pyfits/NP_pyfits.py:4895:
   DeprecationWarning: functions overriding warnings.showwarning() must
   support the 'line' argument
     warnings.warn( "Overwrite existing file '%s'." % name)
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line
   1483, in writeto
       classExtensions=classExtensions)
     File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line
   4895, in writeto
       warnings.warn( "Overwrite existing file '%s'." % name)
     File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line 76,
   in showwarning
       _showwarning(message, category, filename, lineno, file)
     File "/usr/lib/python2.6/warnings.py", line 29, in _show_warning
       file.write(formatwarning(message, category, filename, lineno, line))
   TypeError: formatwarning() takes exactly 4 arguments (5 given)

This happens on Ubuntu 9.04 with python 2.6.2 and pyfits 1.3-2.

I contacted the pyfits author and go the answer that pyfits 1.3 is not
compatible with python 2.6.

So, probably it would be the best to update the pyfits in the repository
with a current version?

Fedora Linux had the same problem, see https://bugzilla.redhat.com/show_bug.cgi?id=509203
>From there I got the following additional info:

This bug was fixed upstream in pyfits version 2.1.  See the CHANGELOG
here:

http://www.stsci.edu/resources/software_hardware/pyfits/release

See this scipy mailing list thread:

http://mail.scipy.org/pipermail/astropy/2009-June/000827.html

** Affects: pyfits (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  the following code fails for me if the output file already exists:
     
     >>> import pyfits
     >>> pyfits.PrimaryHDU().writeto('Map.fits', clobber='True')
  
     /var/lib/python-support/python2.6/pyfits/NP_pyfits.py:4895:
     DeprecationWarning: functions overriding warnings.showwarning() must
     support the 'line' argument
       warnings.warn( "Overwrite existing file '%s'." % name)
     Traceback (most recent call last):
       File "<stdin>", line 1, in <module>
       File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line
     1483, in writeto
         classExtensions=classExtensions)
       File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line
     4895, in writeto
         warnings.warn( "Overwrite existing file '%s'." % name)
       File "/var/lib/python-support/python2.6/pyfits/NP_pyfits.py", line 76,
     in showwarning
         _showwarning(message, category, filename, lineno, file)
       File "/usr/lib/python2.6/warnings.py", line 29, in _show_warning
         file.write(formatwarning(message, category, filename, lineno, line))
     TypeError: formatwarning() takes exactly 4 arguments (5 given)
  
  This happens on Ubuntu 9.04 with python 2.6.2 and pyfits 1.3-2.
  
  I contacted the pyfits author and go the answer that pyfits 1.3 is not
  compatible with python 2.6.
  
  So, probably it would be the best to update the pyfits in the repository
  with a current version?
+ 
+ Fedora Linux had the same problem, see https://bugzilla.redhat.com/show_bug.cgi?id=509203
+ From there I got the following additional info:
+ 
+ This bug was fixed upstream in pyfits version 2.1.  See the CHANGELOG
+ here:
+ 
+ http://www.stsci.edu/resources/software_hardware/pyfits/release
+ 
+ See this scipy mailing list thread:
+ 
+ http://mail.scipy.org/pipermail/astropy/2009-June/000827.html

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"clobber" fails when writing files
https://bugs.launchpad.net/bugs/432459
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