Description of problem:
pup crashed on update of nautilus-open-terminal

Version-Release number of selected component (if applicable):
rpm -qa doesn't show pup. Pirut is pirut-0.9.10-1

How reproducible:
3 times in a row. Then I used yum, and all was well.

Steps to Reproduce:
1. click on pup
2. agree to upgrade 
3.
  
Actual results:
crash

Expected results:
nautlius-open-terminal upgraded

Additional info:

Component: Software Updater
Summary: TBef73f3b0 __init__.py:317:_do_update:TypeError: unsupported operand
type(s) for /: 'float' and 'NoneType'

Traceback (most recent call last):
  File "/usr/sbin/pup", line 269, in _apply
    self.applyChanges(self.mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 580, in
applyChanges
    dlpkgs = self.downloadPackages(mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 334, in
downloadPackages
    probs = self.downloadPkgs(dlpkgs)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 632, in downloadPkgs
    cache=repo.http_caching != 'none',
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 625, in get
    http_headers=headers,
  File "/usr/lib/python2.4/site-packages/urlgrabber/mirror.py", line 414, in urlgrab
    return self._mirror_try(func, url, kw)
  File "/usr/lib/python2.4/site-packages/urlgrabber/mirror.py", line 400, in
_mirror_try
    return func_ref( *(fullurl,), **kwargs )
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 618, in
urlgrab
    return self._retry(opts, retryfunc, url, filename)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 547, in _retry
    return apply(func, (opts,) + args, {})
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 606, in
retryfunc
    fo._do_grab()
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 920, in
_do_grab
    block = self.read(bs)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 987, in read
    self._fill_buffer(amt)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 981, in
_fill_buffer
    self.opts.progress_obj.update(self._amount_read)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 313, in update
   urlgrabber.progress.BaseMeter.update(self, amount_read, now)
  File "/usr/lib/python2.4/site-packages/urlgrabber/progress.py", line 71, in update
    self._do_update(amount_read, now)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 317, in _do_update
    pct = float(amount_read) / self.size
TypeError: unsupported operand type(s) for /: 'float' and 'NoneType'

Local variables in innermost frame:
amount_read: 8192
self: <pirut.dlcb i