I'm getting a strange YUM error in a python script.    
 
File "/usr/bin/yum", line 29, in ? 
    yummain.main(sys.argv[1:]) 
  File "/usr/share/yum-cli/yummain.py", line 138, in main 
    (result, resultmsgs) = base.buildTransaction() 
  File "__init__.py", line 343, in buildTransaction 
  File "depsolve.py", line 211, in resolveDeps 
  File "depsolve.py", line 169, in populateTs 
  File "__init__.py", line 685, in downloadHeader 
  File "repos.py", line 624, in get 
  File "/usr/lib/python2.3/site-packages/urlgrabber/mirror.py", line 414, in url 
grab 
    return self._mirror_try(func, url, kw) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/mirror.py", line 400, in _mi 
rror_try 
    return func_ref( *(fullurl,), **kwargs ) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 618, in ur 
lgrab 
    return self._retry(opts, retryfunc, url, filename) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 547, in _r                   etry 
    return apply(func, (opts,) + args, {}) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 604, in re                   tryfunc 
    fo = URLGrabberFileObject(url, filename, opts) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 727, in __                   init__ 
    self._do_open() 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 794, in _d                   o_open 
    fo, hdr = self._make_request(req, opener) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/grabber.py", line 881, in _m                   ake_request 
    fo = opener.open(req) 
  File "/usr/lib/python2.3/urllib2.py", line 326, in open 
    '_open', req) 
  File "/usr/lib/python2.3/urllib2.py", line 306, in _call_chain 
    result = func(*args) 
  File "/usr/lib/python2.3/site-packages/urlgrabber/byterange.py", line 278, in                    ftp_open 
    raise URLError(msg) 
NameError: global name 'URLError' is not defined 
 
 
Thx, 
 
- Don