Question

我只需要一些不会出现在主机上的软件包（我和linux ......我们......我们没有花太多时间在一起......）。

我过去常常安装它们：

# from the source
python setup.py install --user

或

# with easy_install
easy_install prefix=~/.local package

但它不适用于lxml。我在构建期间遇到了很多错误：

x:~/lxml-2.3$ python setup.py build
Building lxml version 2.3.
Building without Cython.
ERROR: /bin/sh: xslt-config: command not found

** make sure the development packages of libxml2 and libxslt are installed **

Using build configuration of libxslt
running build
running build_py
running build_ext
building 'lxml.etree' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.6 -c src/lxml/lxml.etree.c -o build/temp.linux-i686-2.6/src/lxml/lxml.etree.o -w
In file included from src/lxml/lxml.etree.c:227:
src/lxml/etree_defs.h:9:31: error: libxml/xmlversion.h: No such file or directory
src/lxml/etree_defs.h:11:4: error: #error the development package of libxml2 (header files etc.) is not installed correctly
src/lxml/etree_defs.h:13:32: error: libxslt/xsltconfig.h: No such file or directory
src/lxml/etree_defs.h:15:4: error: #error the development package of libxslt (header files etc.) is not installed correctly
src/lxml/lxml.etree.c:230:29: error: libxml/encoding.h: No such file or directory
src/lxml/lxml.etree.c:231:28: error: libxml/chvalid.h: No such file or directory
src/lxml/lxml.etree.c:232:25: error: libxml/hash.h: No such file or directory
...
src/lxml/lxml.etree.c:55179: error: Б─≤xmlNodeБ─≥ undeclared (first use in this function)
src/lxml/lxml.etree.c:55179: error: Б─≤__pyx_v_c_nodeБ─≥ undeclared (first use in this function)
src/lxml/lxml.etree.c:55184: error: Б─≤_node_to_node_functionБ─≥ undeclared (first use in this function)
src/lxml/lxml.etree.c:55184: error: expected Б─≤;Б─≥ before Б─≤__pyx_v_next_elementБ─≥
src/lxml/lxml.etree.c:55251: error: Б─≤struct __pyx_obj_4lxml_5etree__ReadOnlyProxyБ─≥ has no member named Б─≤_c_nodeБ─≥
...

http://lxml.de/installation.html说它有一些依赖关系。但是如何在没有管理权限的情况下安装它们呢？

Answer 1

如果您没有管理员权限，并且无法说服管理员为您安装相关软件包，您有两种选择：

选项1 - 下载libxml2 and libxslt的源代码并在$HOME某处编译并安装它们，然后针对这些副本构建python-lxml。

这是一个非常复杂的例子，因为如果你缺少进一步的依赖关系，你可能会长时间下载/编译。

选项2 - 下载服务器上使用的同一Linux发行版的二进制包，并提取主目录下的内容。

例如，如果您正在运行Ubuntu Lucid，您首先要找出您的操作系统正在使用的版本，然后下载您丢失的软件包：

% uname -m
x86_64
% aptitude show libxml2 | grep Version
Version: 2.7.6.dfsg-1ubuntu1.1

接下来，直接从Ubuntu服务器下载您需要的软件包：

% mkdir root ; cd root
% wget http://us.archive.ubuntu.com/ubuntu/pool/main/libx/libxml2/libxml2_2.7.6.dfsg-1ubuntu1.1_amd64.deb
% wget http://us.archive.ubuntu.com/ubuntu/pool/main/libx/libxslt/libxslt1.1_1.1.26-6build1_amd64.deb
% wget http://us.archive.ubuntu.com/ubuntu/pool/main/l/lxml/python-lxml_2.2.4-1_amd64.deb

提取内容并合并lxml native和pure-python代码并将共享库移到顶部，然后删除提取的内容：

% dpkg-deb -x libxml2_2.7.6.dfsg-1ubuntu1.1_amd64.deb .
% dpkg-deb -x libxslt1.1_1.1.26-6build1_amd64.deb .
% dpkg-deb -x python-lxml_2.2.4-1_amd64.deb .
% mv ./usr/lib/python2.6/dist-packages/lxml .
% mv ./usr/share/pyshared/lxml/* lxml
% mv ./usr/lib .
% rm *.deb
% rm -rf usr

最后，要使用这些文件，您需要将LD_LIBRARY_PATH和PYTHONPATH环境变量设置为$HOME/root。将它们放在~/.bashrc（或等效物）中，这样它们就是永久性的：

% export LD_LIBRARY_PATH=$HOME/root/lib
% export PYTHONPATH=$HOME/root

您可以使用ldd验证是否找到了共享对象（如果已安装）：

% ldd $HOME/root/lxml/etree.so | grep $HOME
libxslt.so.1 => /home/user/root/lib/libxslt.so.1 (0x00007ff9b1f0f000)
libexslt.so.0 => /home/user/root/lib/libexslt.so.0 (0x00007ff9b1cfa000)
libxml2.so.2 => /home/user/root/lib/libxml2.so.2 (0x00007ff9b19a9000)

然后你准备测试Python了：

% python
>>> from lxml import etree

如何在没有linux管理权限的情况下为python安装lxml？

1 个答案: