don't try to upload tarxz

tools/release

@@ -1,85 +1,85 b''
 #!/usr/bin/env python3
 """IPython release script.
 
 This should ONLY be run at real release time.
 """
 from __future__ import print_function
 
 import os
 from glob import glob
 from subprocess import call
 import sys
 
 from toollib import (get_ipdir, pjoin, cd, execfile, sh, archive,
          archive_user, archive_dir)
 
 # Get main ipython dir, this will raise if it doesn't pass some checks
 ipdir = get_ipdir()
 tooldir = pjoin(ipdir, 'tools')
 distdir = pjoin(ipdir, 'dist')
 
 # Where I keep static backups of each release
 ipbackupdir = os.path.expanduser('~/ipython/backup')
 if not os.path.exists(ipbackupdir):
     os.makedirs(ipbackupdir)
 
 # Start in main IPython dir
 cd(ipdir)
 
 # Load release info
 version = None
 execfile(pjoin('IPython','core','release.py'), globals())
 
 # Build site addresses for file uploads
 release_site = '%s/release/%s' % (archive, version)
 backup_site =  '%s/backup/' % archive
 
 # Start actual release process
 print()
 print('Releasing IPython')
 print('=================')
 print()
 print('Version:', version)
 print()
 print('Source IPython directory:', ipdir)
 print()
 
 # Perform local backup, go to tools dir to run it.
 cd(tooldir)
 
 if 'upload' in sys.argv:
     cd(distdir)
 
     # do not upload OS specific files like .DS_Store
     to_upload = glob('*.whl')+glob('*.tar.gz')
 
     # Make target dir if it doesn't exist
     print('1. Uploading IPython to archive.ipython.org')
     sh('ssh %s "mkdir -p %s/release/%s" ' % (archive_user, archive_dir, version))
-    sh('scp *.tar.gz *.tar.xz *.whl %s' % release_site)
+    sh('scp *.tar.gz *.whl %s' % release_site)
 
     print('2. Uploading backup files...')
     cd(ipbackupdir)
     sh('scp `ls -1tr *tgz | tail -1` %s' % backup_site)
 
     print('3. Uploading to PyPI using twine')
     cd(distdir)
     call(['twine', 'upload', '--verbose'] + to_upload)
 
 else:
     # Build, but don't upload
 
     # Make backup tarball
     sh('python make_tarball.py')
     sh('mv ipython-*.tgz %s' % ipbackupdir)
 
     # Build release files
     sh('./build_release')
 
     cd(ipdir)
 
     print("`./release upload` to upload source distribution on PyPI and ipython archive")
     sys.exit(0)