需要帮助在Windows上为python27构建调试lxml

Question

我正在调试使用lxml的脚本导入的另一个dll。 我需要从lxml项目创建一个objectify_d.pyd和etree_d.pyd。 我按照此处的构建说明成功构建了这些文件： http : //lxml.de/build.html，但是使用了以下命令：

python setup.py build --debug --static

我试着做：

python setup.py build --debug 

但这没用。

构建似乎成功。 创建一个objectify_d.pyd和etree_d.pyd。 使用这些文件（通过将它们复制到c：/ python27 / lib / site-packages / lxml /）并运行调试python构建，在尝试导入时会得到以下内容：

>>> from lxml import objectify
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: DLL load failed: The specified module could not be found.
[83669 refs]

然后，我在调试器中运行了python，并看到对LoadLibraryEx的调用失败（返回NULL）。 GetLastError（）调用返回126，这意味着它找不到dll。 路径正确。 因此，我希望它没有找到相关的DLL。 我正在构建它的机器上运行它，因此缺少的不是运行时库。

这是我构建dll时打印的内容：

</c/lxml/lxml-2.3 Trunk>
$python setup.py build --debug --static
Building lxml version 2.3.
Building with Cython 0.15.1.
ERROR: 'xslt-config' is not recognized as an internal or external command,
operable program or batch file.

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

Using build configuration of libxslt
Building against libxml2/libxslt in one of the following directories:
  ..\iconv-1.9.2.win32\lib
  ..\libxml2-2.7.8.win32\lib
  ..\libxmlsec-1.2.18.win32\lib
  ..\libxslt-1.1.26.win32\lib
  ..\zlib-1.2.5\lib
  c:\python27
running build
running build_py
running build_ext
skipping 'src/lxml\lxml.etree.c' Cython extension (up-to-date)
building 'lxml.etree' extension
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\cl.exe /c /nologo /Od /MDd /W3 /GS- /Z7 /D_DEBUG -I..\iconv-1.9.2.win32\include -I..\libxml2-2.7.8.win 32\include -I..\libxmlsec-1.2.18.win32\include -I..\libxslt-1.1.26.win32\include -I..\zlib-1.2.5\include -I..\ -IC:\python27\include -IC:\python27\PC /TcC:\lxml \lxml-2.3\src\lxml\lxml.etree.c /Fobuild\temp.win32-2.7\Debug\src/lxml\lxml.etree.obj -w DEBUG
cl : Command line warning D9025 : overriding '/W3' with '/w'
cl : Command line warning D9024 : unrecognized source file type 'DEBUG', object file assumed
cl : Command line warning D9027 : source file 'DEBUG' ignored
lxml.etree.c
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\link.exe /DLL /nologo /INCREMENTAL:no /DEBUG /pdb:None /LIBPATH:..\iconv-1.9.2.win32\lib /LIBPATH:..\l ibxml2-2.7.8.win32\lib /LIBPATH:..\libxmlsec-1.2.18.win32\lib /LIBPATH:..\libxslt-1.1.26.win32\lib /LIBPATH:..\zlib-1.2.5\lib /LIBPATH:c:\python27 /LIBPATH:C:\p ython27\libs /LIBPATH:C:\python27\PCbuild libxslt_a.lib libexslt_a.lib libxml2_a.lib iconv_a.lib zlib.lib WS2_32.lib /EXPORT:initetree build\temp.win32-2.7\Debu g\src/lxml\lxml.etree.obj /OUT:build\lib.win32-2.7\lxml\etree_d.pyd /IMPLIB:build\temp.win32-2.7\Debug\src/lxml\etree_d.lib /MANIFESTFILE:build\temp.win32-2.7\Debug\src/lxml\etree_d.pyd.manifest
   Creating library build\temp.win32-2.7\Debug\src/lxml\etree_d.lib and object build\temp.win32-2.7\Debug\src/lxml\etree_d.exp
LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
lxml.etree.obj : warning LNK4049: locally defined symbol _xmlFree imported
lxml.etree.obj : warning LNK4049: locally defined symbol _xmlMalloc imported
lxml.etree.obj : warning LNK4049: locally defined symbol _xsltDocDefaultLoader imported
lxml.etree.obj : warning LNK4049: locally defined symbol _xsltLibxsltVersion imported
zlib.lib(adler32.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(crc32.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(deflate.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzclose.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzlib.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzread.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzwrite.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inffast.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inflate.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inftrees.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(trees.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(zutil.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin\mt.exe -nologo -manifest build\temp.win32-2.7\Debug\src/lxml\etree_d.pyd.manifest -outputresource:build\lib.win32-2.7\lxml\etree_d.pyd;2 skipping 'src/lxml\lxml.objectify.c' Cython extension (up-to-date)
building 'lxml.objectify' extension
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\cl.exe /c /nologo /Od /MDd /W3 /GS- /Z7 /D_DEBUG -I..\iconv-1.9.2.win32\include -I..\libxml2-2.7.8.win32\include -I..\libxmlsec-1.2.18.win32\include -I..\libxslt-1.1.26.win32\include -I..\zlib-1.2.5\include -I..\ -IC:\python27\include -IC:\python27\PC /TcC:\lxml\lxml-2.3\src\lxml\lxml.objectify.c /Fobuild\temp.win32-2.7\Debug\src/lxml\lxml.objectify.obj -w DEBUG
cl : Command line warning D9025 : overriding '/W3' with '/w'
cl : Command line warning D9024 : unrecognized source file type 'DEBUG', object file assumed
cl : Command line warning D9027 : source file 'DEBUG' ignored
lxml.objectify.c
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\link.exe /DLL /nologo /INCREMENTAL:no /DEBUG /pdb:None /LIBPATH:..\iconv-1.9.2.win32\lib /LIBPATH:..\libxml2-2.7.8.win32\lib /LIBPATH:..\libxmlsec-1.2.18.win32\lib /LIBPATH:..\libxslt-1.1.26.win32\lib /LIBPATH:..\zlib-1.2.5\lib /LIBPATH:c:\python27 /LIBPATH:C:\python27\libs /LIBPATH:C:\python27\PCbuild libxslt_a.lib libexslt_a.lib libxml2_a.lib iconv_a.lib zlib.lib WS2_32.lib /EXPORT:initobjectify build\temp.win32-2.7\Debug\src/lxml\lxml.objectify.obj /OUT:build\lib.win32-2.7\lxml\objectify_d.pyd /IMPLIB:build\temp.win32-2.7\Debug\src/lxml\objectify_d.lib /MANIFESTFILE:build\temp.win32-2.7\Debug\src/lxml\objectify_d.pyd.manifest
   Creating library build\temp.win32-2.7\Debug\src/lxml\objectify_d.lib and object build\temp.win32-2.7\Debug\src/lxml\objectify_d.exp
LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
zlib.lib(adler32.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(crc32.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(deflate.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzclose.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzlib.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzread.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(gzwrite.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inffast.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inflate.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(inftrees.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(trees.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
zlib.lib(zutil.obj) : warning LNK4099: PDB 'zlib.pdb' was not found with '..\zlib-1.2.5\lib\zlib.lib' or at 'C:\lxml\lxml-2.3\zlib.pdb'; linking object as if no debug info
C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin\mt.exe -nologo -manifest build\temp.win32-2.7\Debug\src/lxml\objectify_d.pyd.manifest -outputresource:build\lib.win32-2.7\lxml\objectify_d.pyd;2

其他一些信息：

• 我正在使用lxml-2.3代码，因为这是我的应用程序一直在使用的代码。
• 我正在使用python27（32位）的Windows 7机器上运行

如果有人可以为我提供适用于Windows的lxml调试版本，或者为我提供有关如何使用与调试dll混合使用的发布python dll的解释，我将感到满意。

Answer 1

您是在Cygwin环境中构建，然后尝试在Windows中运行吗？ 尝试在Windows中构建。

Answer 2

我没有尝试构建lxml的调试版本，但是几乎可以肯定它不起作用。 据我所知，lxml附带的安装脚本仅用于构建发行版。

您可以利用此功能，只需为发行版本生成调试符号（.pdb）。 该过程相当复杂，但是这里有一个概述：

1. 安装必要的构建工具（Visual Studio，Powershell）。
2. 获取lxml依赖项的源代码（libxml2，libxslt，iconv，zlib）。
3. 建立这些依赖关系并生成其调试符号。
4. 下载要调试的lxml版本（例如3.7.0）。
5. 调整lxml的setup.py以指向静态构建的依赖项。
6. 修补distutils使其认为必须使用特定的Visual Studio版本，而不是用于构建Python解释器的版本。
7. 生成lxml并生成其调试符号。
8. 将整个内容打包到wheel文件中。

而已！ :)我想链接到详细过程可能更合理。

免责声明：我是帖子的作者。