Cent os 升级python到2.5后yum安装出错

# yum list
Loading "priorities" plugin
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 168, in populate
dobj = repo_cache_function(xml, csum)
File "/usr/lib64/python2.4/site-packages/sqlitecachec.py", line 42, in getPrimary
self.repoid))
TypeError: Parsing primary.xml error: Start tag expected, '<' not found


解决方法
cd /usr/local/src
wget http://www.gzip.org/zlib/zlib-1.2.3.tar.gz
tar -zxvf zlib-1.2.3.tar.gz
cd /usr/local/src/zlib-1.2.3
make clean
./configure --prefix=/usr/local
make
make install

cd /usr/local/src
wget ftp://xmlsoft.org/libxml2/libxml2-cvs-snapshot.tar.gz

或wget ftp://xmlsoft.org/libxml2/libxml2-git-snapshot.tar.gz

tar -zxvf libxml2-cvs-snapshot.tar.gz
cd /usr/local/src/libxml2-*
./configure --with-zlib=/usr/local
make
make install