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当我打开一个文本文件时wxPython应用程序挂起/崩溃

分类: 技术问答 • 2022-07-21 00:30:15
问题描述：

好吧，我有一个用wxPython编写的应用程序。有一个按钮被绑定到一个函数，该函数的一部分需要应用程序在kate中打开一个文本文件。当我打开一个文本文件时wxPython应用程序挂起/崩溃

因此，该文件在gedit中打开并且工作正常，但是当您查看该应用程序时，您可以看到该按钮仍然被推入并且似乎冻结。几秒钟后，应用程序将变灰并挂起/崩溃。如果我关闭编辑窗口，它会解冻并重新开始工作。

为什么当我打开文本文件时，我的应用程序挂起？我使用这段代码写入文本文件，然后在kate中打开它。

file = open("encryptedText.txt", "w") 
file.write(encryptedStr) 
file.close() 
os.system("kate encryptedText.txt")

谢谢！

对不起，缩进不是问题。我搞砸了后格式。下面是我得到了终端上的消息：

'import sitecustomize' failed; use -v for traceback 
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. 
kate(13256)/kate-filetree KateFileTreePluginView::KateFileTreePluginView: BEGIN: mw: Kate::MainWindow(0xeab140) 
kate(13256)/kate-filetree ProxyItem::ProxyItem: ProxyItem(0x1219ad0,0x0,-1,QObject(0x0) ,"m_root") 
kate(13256)/kate-filetree ProxyItem::ProxyItem: ProxyItem(0x1219db0,0x0,-1,QObject(0x0) ,"Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::documentOpened: before add: ProxyItem(0x1219db0,0x0,-1,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::setupIcon: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::setupIcon: END! 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: empty item 
kate(13256)/kate-filetree ProxyItem::addChild: added ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") to ProxyItemDir(0x1219ad0,0x0,-1,"m_root", children:1) 
kate(13256)/kate-filetree KateFileTreeModel::documentOpened: after add: ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeProxyModel::KateFileTreeProxyModel: BEGIN! 
kate(13256)/kate-filetree KateFileTreePluginView::setListMode: BEGIN 
kate(13256)/kate-filetree KateFileTreePluginView::setListMode: treeMode 
kate(13256)/kate-filetree KateFileTreePluginView::setListMode: END 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreeProxyModel::docIndex: ! 
kate(13256)/kate-filetree KateFileTreeModel::docIndex: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::docIndex: END! 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: selected doc= KateDocument(0x103da90) QModelIndex(0,0,0x1214690,KateFileTreeProxyModel(0x126b040)) 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: display= "Untitled" 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: adding viewHistory ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::updateBackgrounds: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::updateBackgrounds: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: END! 
kate(13256)/kate-filetree KateFileTree::slotCurrentChanged: current: QModelIndex(0,0,0x1214690,KateFileTreeProxyModel(0x126b040)) previous: QModelIndex(-1,-1,0x0,QObject(0x0)) 
kate(13256)/kate-filetree KateFileTree::slotCurrentChanged: got doc, setting prev: QModelIndex(0,0,0x1214690,KateFileTreeProxyModel(0x126b040)) 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: change to unnamed item 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: "Untitled" -> "Untitled" 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: removing brush ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: removing view history ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: bogus name change 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "Untitled") 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: "Untitled" -> "/home/harvey/Documents/Python Development/encryptedText.txt" 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: removing ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") from ProxyItemDir(0x1219ad0,0x0,-1,"m_root", children:1) 
kate(13256)/kate-filetree KateFileTree::slotCurrentChanged: current: QModelIndex(-1,-1,0x0,QObject(0x0)) previous: QModelIndex(0,0,0x1214690,KateFileTreeProxyModel(0x126b040)) 
kate(13256)/kate-filetree ProxyItem::remChild: remove ProxyItem(0x1219db0,0x1219ad0,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") from ProxyItemDir(0x1219ad0,0x0,-1,"m_root", children:1) 
kate(13256)/kate-filetree KateFileTreeModel::handleEmptyParents: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleEmptyParents: parent ProxyItemDir(0x1219ad0,0x0,-1,"m_root", children:0) grandparentProxyItemDir(0x0) 
kate(13256)/kate-filetree KateFileTreeModel::setupIcon: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::setupIcon: END! 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: inserting ProxyItem(0x1219db0,0x0,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: creating a new root 
kate(13256)/kate-filetree ProxyItem::ProxyItem: ProxyItem(0x14d5460,0x0,-1,QObject(0x0) ,"/home/harvey/Documents/Python Development") 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: add ProxyItemDir(0x14d5460,0x0,-1,"/home/harvey/Documents/Python Development", children:0) to m_root 
kate(13256)/kate-filetree ProxyItem::addChild: added ProxyItem(0x14d5460,0x1219ad0,0,QObject(0x0) ,"/home/harvey/Documents/Python Development") toProxyItemDir(0x1219ad0,0x0,-1,"m_root", children:1) 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: attempting to merge some existing roots 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: adding ProxyItem(0x1219db0,0x0,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") to ProxyItemDir(0x14d5460,0x1219ad0,0,"/home/harvey/Documents/Python Development", children:0) 
kate(13256)/kate-filetree ProxyItem::addChild: added ProxyItem(0x1219db0,0x14d5460,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") to ProxyItemDir(0x14d5460,0x1219ad0,0,"/home/harvey/Documents/Python Development", children:1) 
kate(13256)/kate-filetree KateFileTreeModel::handleInsert: END! 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: ProxyItem(0x1219db0,0x14d5460,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: "encryptedText.txt" -> "/home/harvey/Documents/Python Development/encryptedText.txt" 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::handleNameChange: bogus name change 
kate(13256)/kate-filetree KateFileTreeModel::documentNameChanged: END! 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: BEGIN! 
kate(13256)/kate-filetree KateFileTreeProxyModel::docIndex: ! 
kate(13256)/kate-filetree KateFileTreeModel::docIndex: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::docIndex: END! 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: selected doc= KateDocument(0x103da90) QModelIndex(0,0,0x1572820,KateFileTreeProxyModel(0x126b040)) 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: display= "encryptedText.txt" 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: adding viewHistory ProxyItem(0x1219db0,0x14d5460,0,KateDocument(0x103da90) , "/home/harvey/Documents/Python Development/encryptedText.txt") 
kate(13256)/kate-filetree KateFileTreeModel::updateBackgrounds: BEGIN! 
kate(13256)/kate-filetree KateFileTreeModel::updateBackgrounds: END! 
kate(13256)/kate-filetree KateFileTreeModel::documentActivated: END! 
kate(13256)/kate-filetree KateFileTree::slotCurrentChanged: current: QModelIndex(0,0,0x1572820,KateFileTreeProxyModel(0x126b040)) previous: QModelIndex(-1,-1,0x0,QObject(0x0)) 
kate(13256)/kate-filetree KateFileTree::slotCurrentChanged: got doc, setting prev: QModelIndex(0,0,0x1572820,KateFileTreeProxyModel(0x126b040)) 
kate(13256)/kate-filetree KateFileTreePluginView::viewChanged: END!
+1

是否有终端上的任何错误输出？ – vinnydiehl

+0

修复您的缩进 – lolopop

+1

线程问题？你的GUI等着凯特完成？你有没有试过用'os.system（kate ...＆'）'在后台打开它？ –

答

os.system返回时终止处理，例如，当您关闭凯特，因此功能并没有结束，直到你完成编辑。

使用subprocess.Popen和this作为替代。

答

很可能与线程的问题：你的脚本等待kate回调，并得到不高兴什么不会发生（但有时kate确实是......）

一个潜在的解决方法是让kate在后台做她的事情。您应该使用

os.system('kate yourfile &')

与&在后台中的含义。或者，您也可以使用subprocess模块。你会做这样的事情：

subprocess.Popen(["kate", "yourfile"])

（你也可以查看this SO post）

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