glue not working for argparse 1.3 +

[yurfuwa-chan]

Dear glue group.
First . Sorry , I can english a little.
I try install glue in linux centos . but not working it.

$:~> sudo glue
Traceback (most recent call last):
  File "/usr/bin/glue", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 2655, in <module>
    working_set.require(__requires__)
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 648, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 546, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: argparse>=1.1

I know , I using argparse version is 1.3.
So , I try next step.

sudo pip install argparse==1.2.1

I could work glue.
thank you.