利用yum安装命令是出现的错误

在利用yum命令时出现了如下的错误提示：

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[root@rap1 lib]# yum install gperf
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 105, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 289, in doCommands
    self._getTs()
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 85, in _getTs
    self._getTsInfo()
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 91, in _getTsInfo
    self._tsInfo.setDatabases(self.rpmdb, self.pkgSack)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 537, in <lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 392, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 242, in populateSack
    sack.populate(repo, mdtype, callback, cacheonly)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 143, in populate
    if self._check_db_version(repo, mydbtype):
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 200, in _check_db_version
    if repo.repoXML.repoData.has_key(mdtype):
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 781, in <lambda>
    repoXML = property(fget=lambda self: self._getRepoXML(),
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 773, in _getRepoXML
    self._loadRepoXML(text=self)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 756, in _loadRepoXML
    cache=self.http_caching == 'all')
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 624, in _getFile
    result = self.grab.urlgrab(relative, local,
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 449, in <lambda>
    grab = property(lambda self: self._getgrab())
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 444, in _getgrab
    self._setupGrab()
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 433, in _setupGrab
    self._grab = mgclass(self._grabfunc, self.urls,
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 528, in <lambda>
    urls = property(fget=lambda self: self._geturls(),
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 525, in _geturls
    self._baseurlSetup()
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 490, in _baseurlSetup
    mirrorurls.extend(self._getMirrorList())
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 940, in _getMirrorList
    fo = urlgrabber.grabber.urlopen(url, proxies=self.proxy_dict)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 605, in urlopen
    return default_grabber.urlopen(url, **kwargs)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 884, in urlopen
    return self._retry(opts, retryfunc, url)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 845, in _retry
    r = apply(func, (opts,) + args, {})
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 883, in retryfunc
    return URLGrabberFileObject(url, filename=None, opts=opts)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1001, in __init__
    self._do_open()
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1072, in _do_open
    fo, hdr = self._make_request(req, opener)
  File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1172, in _make_request
    fo = opener.open(req)
  File "/usr/lib/python2.4/urllib2.py", line 358, in open
    response = self._open(req, data)
  File "/usr/lib/python2.4/urllib2.py", line 376, in _open
    '_open', req)
  File "/usr/lib/python2.4/urllib2.py", line 337, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.4/urllib2.py", line 573, in <lambda>
    lambda r, proxy=url, type=type, meth=self.proxy_open: \
  File "/usr/lib/python2.4/urllib2.py", line 580, in proxy_open
    if '@' in host:

TypeError: iterable argument required

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原因：

公司上网需要设置代理，于是编辑~/.bash_profile文件，在里面加入了如下设置：

export http_proxy='172.XX.XX.XXX:8080'
保存之后，执行 source ~/.bash_profile命令适用本设置。

 

但是这种设置网络代理的格式正是导致上述错误的原因。

 

解决办法：

格式修正为↓

export http_proxy='http://172.XX.XX.XXX:8080'

#加入http://是为了申明代理是http类型的，区别于其他类型的代理（如sock5）。