Extracting a file from a tarball

Boudreau, Emile Emile.Boudreau at cognos.com
Tue Apr 3 13:26:54 EDT 2007

I am trying to extract one file from a tarball, without success. This is
the code I'm using to open the tarball and extract the file:

tar = tarfile.open(component+'-win32-app-'+bestVersion+'-dev.tar.gz',
extractedFile = tar.extractfile('symbols.xml')

And this is my error:

Traceback (most recent call last):
  File "C:\CognosInstalls\AutoTest\PollDir.py", line 121, in <module>
  File "C:\CognosInstalls\AutoTest\PollDir.py", line 119, in main
    extract('c:\\', 'I:\\daily\\'+components[i], components[i])
  File "C:\CognosInstalls\AutoTest\PollDir.py", line 27, in extract
    filelike = tar.extractfile('symbols.xml')
  File "C:\Python25\lib\tarfile.py", line 1488, in extract
    tarinfo = self.getmember(member)
  File "C:\Python25\lib\tarfile.py", line 1171, in getmember
    raise KeyError("filename %r not found" % name)
KeyError: "filename 'symbols.xml' not found"

I know that the tarball contants this file "symbols.xml" but I don't
understand why it's not extracting it. Any help will be greatly


Emile Boudreau
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