ubuntu 11.04 lxml导入自定义python的etree问题

Question

ubuntu 11.04有本机python2.7我从源码到/usr/local/python2.5/bin构建python2.5,并尝试为我的自定义python2.5安装安装lxml.我也使用virtualenv.我用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,但在python2.5导入失败.请帮忙修复python2.5？

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$ 

Answer 1

此问题通常是由于在不使用命令--enable-unicode=ucs4选项的情况下构建Python而导致的./configure.

要确保正确执行,请删除现有的Python构建目录,然后通过解压缩Python tarball再次开始构建.

此外,删除现有的Python 2.5安装目录/usr/local/python2.5/并重建您构建的所有其他内容,例如lxml.使用已编译组件的任何扩展都将查找Python构建配置,因此如果您不重建所有内容,则会出现不匹配的内容.