Qt 程序（Canopy GUI，ipython qtconsole）在 Enthought Canopy Win7 64 位中崩溃

Question

我在 Windows 7 - 64 位上安装了 Canopy 1.5.2。我执行了 Enthought web page 中描述的所有步骤，但 Canopy GUI 无法启动。我意识到问题与 Qt 有关，因为不需要此类程序的应用程序（如 Mayavi、Pylab 等）可以完美运行。当我尝试运行、p.e 时。 ipython qtconsole，控制台出现以下内容：

D:\Enthought\Canopy\User\Scripts>ipython qtconsole
Error in sys.excepthook:
Traceback (most recent call last):
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\qt\console\qtconsolea
pp.py", line 45, in gui_excepthook
    old_excepthook(exctype, value, tb)
TypeError: 'NoneType' object is not callable

Original exception was:
Traceback (most recent call last):
  File "C:\Program Files\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_
64\lib\runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "C:\Program Files\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_
64\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\__main__.py", line 14
, in <module>
    start_ipython()
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\__init__.py", line 12
0, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 573, in launch_instance
    app.initialize(argv)
  File "<string>", line 2, in initialize
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\terminal\ipapp.py", l
ine 321, in initialize
    super(TerminalIPythonApp, self).initialize(argv)
  File "<string>", line 2, in initialize
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\core\application.py",
 line 369, in initialize
    self.parse_command_line(argv)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\terminal\ipapp.py", l
ine 316, in parse_command_line
    return super(TerminalIPythonApp, self).parse_command_line(argv)
  File "<string>", line 2, in parse_command_line
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 471, in parse_command_line
    return self.initialize_subcommand(subc, subargv)
  File "<string>", line 2, in initialize_subcommand
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\config\application.py
", line 402, in initialize_subcommand
    subapp = import_item(subapp)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\utils\importstring.py
", line 42, in import_item
    module = __import__(package, fromlist=[obj])
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\qt\console\qtconsolea
pp.py", line 50, in <module>
    from IPython.external.qt import QtCore, QtGui
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\external\qt.py", line
 23, in <module>
    QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts)
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\external\qt_loaders.p
y", line 277, in load_qt
    result = loaders[api]()
  File "D:\Enthought\Canopy\User\lib\site-packages\IPython\external\qt_loaders.p
y", line 229, in import_pyside
    from PySide import QtGui, QtCore, QtSvg
ImportError: DLL load failed: No se puede encontrar el m¾dulo especificado.

D:\Enthought\Canopy\User\Scripts>

，但是当我开始 ipython notebook 时一切正常。我还使用 enpkg 更新了所有包。我感谢任何帮助。提前致谢。

更新： 我设置 set QT_API = pyqt 现在我可以运行 ipython qtconsole 和 ipython qtconsole -pylab=qt 。但我仍然无法运行 Canopy GUI（代码编辑器或包管理器）。

Answer 1

通常此错误意味着 PySide 无法找到 Qt DLL，或者它找到的版本不正确并且没有一些预期的符号。您的系统上是否在 PATH 某处有其他一些 Qt 库？您可以使用 Dependency Walker 工具检查 PySide *.pyd 文件以查看它正在搜索的其他 DLL 以及它加载的 DLL。

Qt 程序（Canopy GUI，ipython qtconsole）在 Enthought Canopy Win7 64 位中崩溃

Qt programs (Canopy GUI, ipython qtconsole) crash in Enthought Canopy Win7 64Bits

python

qt

pyside

enthought

canopy