`從QTKit導入*`導致'FAILED TO在PyO​​bjC應用程序中建立到WindowServer的默認連接

Question

我一直在嘗試PyObjC，我似乎無法讓QTKit導入工作。如果我輸入QTKit像這樣：from QTKit import *我得到錯誤的洪水：

[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. 

出現這種情況，即使添加到應用程序沒有其他的代碼。例如：我可以創建一個新的cocoa/python項目，添加Quicktime框架，打開生成的委託並添加行from QTKit import *，構建並運行以及錯誤流程。我錯過了一個步驟嗎？

Answer 1

看看this tutorial。顯然QTKit只有在runloop建立後才能導入。