Python 2 fix in make_tarball.py

tools/make_tarball.py

@@ -1,22 +1,22 b''
 #!/usr/bin/env python
 """Simple script to create a tarball with proper git info.
 """
 
 import subprocess
 import os
 
 from toollib import cd, sh
 
-tag = subprocess.getoutput('git describe --tags')
+tag = subprocess.check_output('git describe --tags', shell=True).decode('utf8', 'replace').strip()
 base_name = 'ipython-%s' % tag
 tar_name = '%s.tgz' % base_name
 
 # git archive is weird:  Even if I give it a specific path, it still won't
 # archive the whole tree.  It seems the only way to get the whole tree is to cd
 # to the top of the tree.  There are long threads (since 2007) on the git list
 # about this and it still doesn't work in a sensible way...
 
 cd('..')
 git_tpl = 'git archive --format=tar --prefix={0}/ HEAD | gzip > {1}'
 sh(git_tpl.format(base_name, tar_name))
 sh('mv {0} tools/'.format(tar_name))