採用原始碼方式安裝python2.7，程式執行時報：

執行from lxml import etree報：

python27/lib/python2.7/site-packages/lxml-3.4.1-py2.7-linux-i686.egg/lxml/etree.so: undefined symbol: __xmlStructuredErrorContext

其原因是編譯時用的libxml2版本過低，解決方案：

yum groupinstall "Development Tools"

wget http://xmlsoft.org/sources/libxml2-2.7.8-1.src.rpm

rpm -ivh libxml2-2.7.8-1.src.rpm --nomd5
 

rpmbuild -ba /usr/src/redhat/SPECS/libxml2.spec

cd /usr/src/redhat/RPMS/arch

yum localinstall libxml2-2.7.8-1.i386.rpm libxml2-devel-2.7.8-1.i386.rpm libxml2-python-2.7.8-1.i386.rpm --nogpgcheck

參考：

http://serverfault.com/questions/266927/install-libxml2-2-7-x-on-centos-5-x