我一直在尝试PyObjC，但似乎无法使QTKit导入正常工作。如果我这样导入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.
即使没有将其他代码添加到应用程序中，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
from QTKit import *行，生成并运行以及错误流。我缺少步骤了吗？ 最佳答案
看看this tutorial。显然，要在运行循环建立之后才能导入QTKit。
关于python - 从QTKit import *中导致PyObjC应用程序中的“Failed建立与WindowServer的默认连接”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/1733098/