我已经安装了 EPD，并且正在尝试使用 Canopy（Windows 7 64 位，学术许可证）。当我第一次启动 Canopy 时，什么都没有发生（没有 GUI，没有错误消息），我意识到这是因为我将 QT_API 设置为 pyqt。将 qt_api 更改为 pyside 允许我启动 Canopy。完成此操作后，我通过 Canopy 包管理器检查了 pyqt 是否已安装。但是 Canopy 拒绝从 QT_API 设置为 pyqt 开始。我怎样才能解决这个问题？我有一个包含 pyqt 中所有内容的大项目，所以我想使用它。
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Since Canopy GUI application runs in a different process than Canopy User Python, they can use different GUI backends.
At present, the Canopy GUI application is Pyside-only, because of PyQt's GPL license. I think, therefore, that Canopy GUI should be ignoring QT_API (or internally forcing it), so that you could set it however you want for your application. However from your report this does not seem to be the case.
As a workaround, the first thing that I would try would be to begin your main module (before any backend-dependent imports) by setting os.environ['QT_API'] = 'pyqt'.
于 2013-09-26T03:58:18.037 回答