wxPython中的“通用包装中没有匹配的体系结构”问题？

Question

我在Mac OS 10.6.4下运行Python 2.7，并且刚刚从wxPython2.8-osx-unicode-2.8.11.0-universal- py2.7.dmg二进制文件安装了wxPython 。import wx我的Python脚本中出现了一个奇怪的错误。仅供参考，我可以从PyCrust导入wx模块。我真的看不到我在这里做错了什么。谁能帮忙吗？

  File "prod_cons_wx.py", line 6, in <module>
    import wx 
  File "/usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.7/site-packages/wx-2.8-mac-unicode/wx/__init__.py", line 45, in <module>
    from wx._core import *
  File "/usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.7/site-packages/wx-2.8-mac-unicode/wx/_core.py", line 4, in <module>
    import _core_
ImportError: dlopen(/usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.7/site-packages/wx-2.8-mac-unicode/wx/_core_.so, 2): no suitable image found.  Did find:
    /usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.7/site-packages/wx-2.8-mac-unicode/wx/_core_.so: no matching architecture in universal wrapper

Answer 1

看来，附带的wxPython 2.7 DMG C扩展模块这里是仅32位。

$ cd /usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.7/site-packages/wx-2.8-mac-unicode/wx
$ file *.so
_animate.so:   Mach-O universal binary with 2 architectures
_animate.so (for architecture ppc): Mach-O bundle ppc
_animate.so (for architecture i386):    Mach-O bundle i386
_aui.so:       Mach-O universal binary with 2 architectures
_aui.so (for architecture ppc): Mach-O bundle ppc
_aui.so (for architecture i386):    Mach-O bundle i386
...

不幸的是，platform.architecture()它不能准确指示Python正在运行的OS X多种体系结构。例如，对于Python
2.7使用3-arch python.org安装程序，platform.architecture()即使在32位模式下运行，也始终报告64位。 ：

$ cd /Library/Frameworks/Python.framework/Versions/2.7
$ file python2.7
python2.7: Mach-O universal binary with 3 architectures
python2.7 (for architecture i386):  Mach-O executable i386
python2.7 (for architecture ppc7400):   Mach-O executable ppc
python2.7 (for architecture x86_64):    Mach-O 64-bit executable x86_64
$ arch -x86_64 ./python2.7 -c 'import platform, sys; print "{0}, {1:x}".format(platform.architecture()[0], sys.maxint)'
64bit, 7fffffffffffffff
$ arch -i386 ./python2.7 -c 'import platform, sys; print "{0}, {1:x}".format(platform.architecture()[0], sys.maxint)'
64bit, 7fffffff
$ arch -ppc ./python2.7 -c 'import platform, sys; print "{0}, {1:x}".format(platform.architecture()[0], sys.maxint)'
64bit, 7fffffff

可靠的方法是检查sys.maxintPython 2或sys.maxsizePython 3。

您没有在问题中指出如何调用Python。是通过脚本文件中的shebang行吗？如果是这样，您可能没有运行您认为是的Python。另外，您不会指出已安装的Python
2.7。例如，当前有两个来自python.org的Python 2.7安装程序：一个安装程序同时支持32位和64位执行，另一个仅支持32位。请尝试以下操作：

$ file $(python2.7 -c 'import sys;print(sys.executable)')
/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python: Mach-O universal binary with 3 architectures
/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python (for architecture i386):   Mach-O executable i386
/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python (for architecture ppc7400):    Mach-O executable ppc
/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python (for architecture x86_64): Mach-O 64-bit executable x86_64

因此：如果您具有Python的多体系结构版本，则需要强制其以32位模式运行，以利用预编译的wxPython。