eclipse WxPython 与雪豹不兼容？

WxPython Incompatible With Snow Leopard?

提问by Alex

Recently I upgraded to Snow Leopard, and now I can't run programs built with wxPython. The errors I get are (from Eclipse + PyDev):

最近升级了Snow Leopard，现在用wxPython构建的程序不能运行了。我得到的错误是（来自 Eclipse + PyDev）：

  import wx 
  File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT/System/Library/Frameworks
  /Python.framework/Versions/2.6/Extras/lib/
  python/wx-2.8-mac-unicode/wx/__init__.py", line 45, in <module>

  File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT
  /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib
  /python/wx-2.8-mac-unicode/wx/_core.py", line 4, in <module>
  ImportError:/System/Library/Frameworks
  /Python.framework/Versions/2.6/Extras/lib/python
  /wx-2.8-mac-unicode/wx/_core_.so: no appropriate 64-bit architecture 
  (see "man python" for running in 32-bit mode)

I don't really understand them and would appreciate if you could help me to do so, also, if you do know what's going on, how can I go about fixing them? Maybe this has something to do with the fact that Snow Leopard is 64-bit?

我不太了解它们，如果您能帮助我这样做，我将不胜感激，此外，如果您知道发生了什么，我该如何修复它们？也许这与 Snow Leopard 是 64 位的事实有关？

Thanks!!

谢谢！！

回答by Michael Aaron Safyan

The problem is that WxPython is only available on the Mac in 32-bit mode; however, by default, Python will start up in 64-bit mode. To fix this problem, create the following shell script named python_32:

问题是 WxPython 只能在 Mac 的 32 位模式下使用；但是，默认情况下，Python 将以 64 位模式启动。要解决此问题，请创建以下名为 的 shell 脚本python_32：

#! /bin/bash
export VERSIONER_PYTHON_PREFER_32_BIT=yes
/usr/bin/python "$@"

Make the script executable (chmod a+x python_32) and place the script in your path. Now, simply invoke python_32to get an interactive Python console in which you can use WxPython. If you want to write a Python script that uses this, you can use the shebang: #! /usr/bin/env python_32.

使脚本可执行 ( chmod a+x python_32) 并将脚本放在您的路径中。现在，只需调用python_32即可获得一个交互式 Python 控制台，您可以在其中使用 WxPython。如果要编写使用它的 Python 脚本，可以使用 shebang: #! /usr/bin/env python_32。

Now to explain... the basic problem is that 32-bit and 64-bit code uses a different application binary interface (ABI), and so 32-bit code and 64-bit code cannot coexist in the same library/executable/process. In order to support 64-bit mode, it needs to have been compiled in 64-bit mode; likewise, to support 32-bit mode, it needs to have been compiled in 32-bit mode. Under OS X, it is possible, using universal binaries to support both... however, it needs to be compiled in both modes (and then merged). WxWidgets probably uses Carbon, which is only available in 32-bit mode (Cocoa is available in both 32-bit and 64-bit mode... Apple didn't bother making Carbon available in both modes, since it is being deprecated), which would explain why WxPython, in turn, could only be provided in 32-bit mode. This, in turn, means that using it in Python requires you to launch Python in 32-bit mode (Python is a universal binary with both 32-bit and 64-bit versions of itself available in the same binary file, so it can be launched in either mode).

现在解释... 基本问题是 32 位和 64 位代码使用不同的应用程序二进制接口 (ABI)，因此 32 位代码和 64 位代码不能共存于同一个库/可执行文件/进程中. 为了支持64位模式，需要已经编译为64位模式；同样，要支持 32 位模式，它需要已在 32 位模式下编译。在 OS X 下，可以使用通用二进制文件来支持两者……但是，它需要在两种模式下编译（然后合并）。WxWidgets 可能使用 Carbon，它只在 32 位模式下可用（Cocoa 在 32 位和 64 位模式下都可用……Apple 没有费心让 Carbon 在这两种模式下可用，因为它已被弃用），这将解释为什么 WxPython 反过来只能以 32 位模式提供。这反过来，

Alternative Option
I don't recommend doing this, because I think you should leave the defaults as they are, but since you might not have enough shell scripting knowledge (you need to use "./python_32" or place it in a folder that is listed in your "$PATH" environment variable and invoke it as "python_32") to follow the former option, you might want to simply execute the following command which will make 32-bit mode the default:

替代选项
我不建议这样做，因为我认为您应该保留默认值，但由于您可能没有足够的 shell 脚本知识（您需要使用“./python_32”或将其放在在您的“$PATH”环境变量中列出并将其作为“python_32”）调用以遵循前一个选项，您可能只想执行以下命令，这将使 32 位模式成为默认值：

defaults write com.apple.versioner.python Prefer-32-Bit -bool yes

If you decide you want to switch back into 64-bit mode, you can then use the following command:

如果您决定要切换回 64 位模式，则可以使用以下命令：

defaults write com.apple.versioner.python Prefer-32-Bit -bool no

Note that both commands are to be executed on the Terminal (not within Python).

请注意，这两个命令都将在终端上执行（而不是在 Python 中）。

Source
I should point out that both recomendations are based on man pythonon Mac OS X. So, if you have any other questions, you should definitely read the man page as the error message has urged you to do.

来源
我应该指出，这两个建议都是基于Mac OS X上的man python。因此，如果您有任何其他问题，您一定要阅读手册页，因为错误消息已敦促您这样做。

回答by Mike Driscoll

While I see this is already answered, the answer is slightly wrong. The 2.9 series DOES have a Mac 64-bit build, albeit only for Python 2.7. See http://wxpython.org/download.phpand look for the Cocoa build. From what I gather on the wxPython mailing list and IRC channel, you'll want to download a Python 64-bit build from python.org rather than using the Mac-included snake.

虽然我看到这已经回答了，但答案有点错误。2.9 系列确实具有 Mac 64 位版本，尽管仅适用于 Python 2.7。请参阅http://wxpython.org/download.php并查找 Cocoa 构建。根据我在 wxPython 邮件列表和 IRC 频道上收集到的信息，您可能希望从 python.org 下载 Python 64 位构建，而不是使用 Mac 包含的蛇。

回答by spade78

You might also want to try archcommand when invoking python:arch -i386 /usr/bin/python2.6if you can't get Python to run with the correct environmental settings. The '-i386' switch makes a universal binary run in Intel 32-bit mode. '-x86_64' makes it run in Intel 64-bit mode. -ppc and -ppc64 is for PPC architectures.

您可能还想在调用 python 时尝试arch命令：arch -i386 /usr/bin/python2.6如果您无法让 Python 在正确的环境设置下运行。'-i386' 开关使通用二进制文件在 Intel 32 位模式下运行。'-x86_64' 使它在 Intel 64 位模式下运行。-ppc 和 -ppc64 用于 PPC 架构。

If you still get errors then it might point to a compile issue. On my machine I have the stock apple Python and a version from Macports. The arch command works using the apple binaries and I can import wx successfully from the command line but I still get errors from the Macports binary: Bad CPU type in executableI'm guessing I'll have to go back and recompile my Macports python binary and make sure it produces a universal binary or something like that (sigh).

如果您仍然收到错误，那么它可能指向编译问题。在我的机器上，我有苹果 Python 和 Macports 的一个版本。arch 命令使用苹果二进制文件工作，我可以从命令行成功导入 wx 但我仍然从 Macports 二进制文件中得到错误：Bad CPU type in executable我猜我必须回去重新编译我的 Macports python 二进制文件并确保它产生通用二进制或类似的东西（叹气）。

回答by Prashant John

This worked for me (from http://www.python-forum.de/viewtopic.php?f=19&t=24322&view=previous)

这对我有用（来自http://www.python-forum.de/viewtopic.php?f=19&t=24322&view=previous）

In .profile, add the following line alias py32='arch -i386 /Library/Frameworks/Python.framework/Versions/2.7/bin/pythonw2.7'

在 .profile 中，添加以下行 alias py32='arch -i386 /Library/Frameworks/Python.framework/Versions/2.7/bin/pythonw2.7'

then invoke your script with py32

然后用 py32 调用你的脚本

回答by Ned Deily

Another solution is to download and install Python 2.6 for OS X from python.organd install wxPython for OS X from herewith it. The python.org 2.6 is newer (2.6.5 as of now) than the Apple-supplied Python (2.6.1) in Snow Leopard and it is 32-bit only.

另一种解决方案是从python.org下载并安装适用于 OS X 的 Python 2.6并从这里使用它安装适用于 OS X 的 wxPython 。python.org 2.6 比雪豹中 Apple 提供的 Python (2.6.1) 更新（目前为 2.6.5），并且只有 32 位。

回答by Doc

Hm. The script provided didn't work for me-- I changed it as follows:

嗯。提供的脚本对我不起作用 - 我将其更改如下：

#! /bin/bash
echo "-----------------Python 2.6 - 32 Bit setup --------------------"
echo "Running" 
export VERSIONER_PYTHON_PREFER_32_BIT yes
/usr/bin/python2.6 

Still didn't work. I get the same message. Re-read the man page to make sure I wasn't misunderstanding, and I'm no further forward:

还是没用。我收到同样的信息。重新阅读手册页以确保我没有误解，我不再继续：

ImportError: /usr/local/lib/wxPython-unicode-2.8.10.1/lib/python2.6/site-packages/wx-2.8-mac-unicode/wx/_core_.so: no appropriate 64-bit architecture (see "man python" for running in 32-bit mode)

Not really sure why this doesn't work, unless there is some sort of rebuild that needs to be done against the wx core that gives it 32/64-bit compatibility. Any suggestions, anyone? I'd like to use the out-of-the-box Python install from Apple (be easier for my work), and I'd like to avoid any more ridiculous hacks

不太确定为什么这不起作用，除非需要对 wx 核心进行某种重建以使其具有 32/64 位兼容性。任何建议，任何人？我想使用 Apple 的开箱即用的 Python 安装（对我的工作来说更容易），并且我想避免任何更荒谬的黑客攻击