ubuntu
11.04具有本机python2.7，我从源代码构建python2.5到/usr/local/python2.5/bin，并尝试为我的自定义python2.5安装安装lxml。我也使用virtualenv。我使用python2.5切换到我的环境。在导入lxml时出现错误。

from lxml import etree
ImportError: /home/se7en/.virtualenvs/e-py25/lib/python2.5/site-packages/lxml-2.2.4-py2.5-linux-i686.egg/lxml/etree.so: undefined symbol: PyUnicodeUCS2_DecodeLatin1

使用python2.7 env，一切正常，但是在python2.5上导入失败。请帮助修复python2.5吗？

ldd /home/se7en/.virtualenvs/e-py25/lib/python2.5/site-
packages/lxml-2.2.4-py2.5-linux-i686.egg/lxml/etree.so

结果：

(e-py25)se7en@se7en-R510-P510:~/downloads/lxml-2.2.4$ ldd /home/se7en/.virtualenvs/e-py25/lib/python2.5/site-packages/lxml-2.2.4-py2.5-linux-i686.egg/lxml/etree.so
    linux-gate.so.1 =>  (0x00968000)
    libxslt.so.1 => /usr/lib/libxslt.so.1 (0x005aa000)
    libexslt.so.0 => /usr/lib/libexslt.so.0 (0x00110000)
    libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00db3000)
    libz.so.1 => /lib/i386-linux-gnu/libz.so.1 (0x00a22000)
    libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0x00564000)
    libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0x00123000)
    libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0x0013c000)
    libgcrypt.so.11 => /lib/i386-linux-gnu/libgcrypt.so.11 (0x0029d000)
    libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0x00d6e000)
    /lib/ld-linux.so.2 (0x004fc000)
    libgpg-error.so.0 => /lib/i386-linux-gnu/libgpg-error.so.0 (0x00879000)
(e-py25)se7en@se7en-R510-P510:~/downloads/lxml-2.2.4$