python - `from QTKit import *` 在 PyObjC 应用程序中导致“无法建立到 WindowServer 的默认连接”

Question

我一直在尝试 PyObjC，但似乎无法让 QTKit 导入工作。如果我像这样导入 QTKit：from QTKit import *我会收到大量错误：

[Session started at 2009-11-13 21:03:49 -0600.]
_RegisterApplication(), FAILED TO establish the default connection to the WindowServer, _CGSDefaultConnection() is NULL.
2009-11-13 21:03:50.671 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.673 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.673 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.674 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.681 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.682 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.692 WhyDoesntThisWork[16550:10b] NSInternalInconsistencyException - Error (1002) creating CGSWindow
2009-11-13 21:03:50.704 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.705 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.712 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.713 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.721 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.721 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.
2009-11-13 21:03:50.722 WhyDoesntThisWork[16550:10b] *** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1c55c00> '(null)') unlocked when not locked
2009-11-13 21:03:50.723 WhyDoesntThisWork[16550:10b] *** Break on _NSLockError() to debug.

即使没有向应用程序添加其他代码，也会发生这种情况。例如：我可以创建一个新的 cocoa/python 项目，添加 Quicktime 框架，打开生成的委托并添加行from QTKit import *，构建和运行以及错误流。有没有我错过的步骤？

Answer 1

看看这个教程。显然，在建立运行循环之前无法导入 QTKit。