`from QTKit import *`导致PyObjC应用程序出现“无法建立与WindowServer的默认连接”错误
我最近在尝试使用PyObjC，但发现QTKit的导入总是出问题。如果我这样导入QTKit：from QTKit import *，就会出现一堆错误：
[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.
即使我在应用程序中没有添加其他代码，这种情况也会发生。例如：我可以创建一个新的Cocoa/Python项目，添加Quicktime框架，打开生成的代理文件，然后加上这一行from QTKit import *，然后构建并运行，结果错误就来了。我是不是漏掉了什么步骤？