try:
hash = git.rev_parse(commit)
-except git.GitError, e:
+except git.GitError as e:
log("bup: error: %s" % e)
sys.exit(2)
tag_file = git.repo('refs/tags/%s' % tag_name)
try:
tag = file(tag_file, 'w')
-except OSError, e:
+except OSError as e:
log("bup: error: could not create tag '%s': %s" % (tag_name, e))
sys.exit(3)