在PyQt应用上使用cx_freeze时出现SyntaxError [英] SyntaxError when using cx_freeze on PyQt app

问题描述

当尝试使用PyQt4从Python 3脚本构建.exe文件时，会出现非常烦人的问题。我认为它与使用 uic 模块动态加载 .ui 文件有关。
cx_freeze 返回：

This is quite annoying problem that occurs when trying to build .exe file from Python 3 script using PyQt4. I think it is connected with using uic module for dynamic loading of .ui files. cx_freeze returns:

  File "E:\Python32_32\lib\site-packages\cx_Freeze\finder.py", line 366, in _LoadModule
    module.code = compile(codeString, path, "exec")
  File "E:\Python32_32\lib\site-packages\PyQt4\uic\port_v2\load_plugin.py", line 41
    except Exception, e:
                    ^
SyntaxError: invalid syntax

我已经解决了这个问题，但是最近又遇到了。在网络上查找解决方案并不容易，因此我决定在SO上发布问答。希望不仅对我有用：-）。

I have solved this problem some time ago but I have recently encountered it again. Finding solution on the web isn't easy so I decided to post Q&A on SO. Hope it will be helpful not only for me :-).

推荐答案

问题实际上在于 cx_freeze 尝试对Python 2（而非3）使用 uic 子模块，并且在其中一个文件中遇到Py3不兼容的语法。解决方案非常简单：

Problem lies in fact that cx_freeze tries to use uic submodule for Python 2, not 3 and encounters Py3-incompatible syntax in one of files. Solution is quite simple:

查找 uic 目录，它应该位于 your_python_dir＼ ＼库站点包\PyQt4\uic 。那里有两个目录： port_v2 和 port_v3 。重命名第一个，例如为 port_v2 _ 。我认为使用Python2重命名 v3 时可能会发生类似的问题。无论如何，这将导致 cx_freeze 找到 uic 的正确版本，并且脚本应正确构建。

Find uic directory, it should be located in your_python_dir\Lib\site-packages\PyQt4\uic. There are two directories there: port_v2 and port_v3. Rename the first one, for example to port_v2_. I think similar problem can occur while using Python2-rename v3 then. Anyway, this will cause cx_freeze to find proper version of uic and the script should build correctly.

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