Python 2.7 如何在pyqt4中正确创建第二个窗口

我正试图通过点击按钮打开主窗口旁边的第二个窗口，并在其上显示一个包含一些数据的tablewidget。当我打开窗户时，它升起了

AttributeError: 'Ui_MainWindow' object has no attribute 'openTable'

主窗口是用Qt设计器创建的，并用pyuic4转换了ui文件。如何正确地纠正此错误，以避免引发错误

按钮调用函数：

def showCliplist(self):
    data = self.metadata_list
    luts = self.lutlist
    selected_lut = self.LUTBox.currentIndex()
    openTable = ClipListViewer(data,luts,selected_lut)
    self.openTable.show()

class ClipListViewer(QtGui.QWidget):

    def __init__(self, data, luts, selected_lut, parent = None):
        super(ClipListViewer,self).__init__()
        self.setWindowTitle('Cliplist')
        self.resize(900,600)
        self.metadata = data
        self.curentluts = luts
        self.choosenlut = selected_lut

        y_count = len(self.metadata)
        self.table = QtGui.QTableWidget(y_count,6)
        self.table.setHorizontalHeaderLabels(['Clip', 'Videocodec', 'FPS', 'Audiocodec', 'Start Timecode', 'LUT'])
        x = y = 0
        for items in self.metadata:
            for entry in items:
                #print entry
                self.table.setItem(y, x, QtGui.QTableWidgetItem(entry))
                self.table.resizeColumnToContents(x)
                x += 1
            self.comb = QtGui.QComboBox()
            for lutname in self.curentluts:
                self.comb.addItem(lutname)
                self.comb.setCurrentIndex(self.choosenlut)
            self.table.setCellWidget(y, 5, self.comb)
            self.table.setColumnWidth(5,  230)
            y += 1
            x = 0

        self.table.resizeRowsToContents()

        layout = QtGui.QHBoxLayout()
        layout.addWidget(self.table)
        self.setLayout(layout)

        self.show()

    def closeEvent(self, event):  #check if window was closed
        print "Cliplist Window was closed! "

新窗口类：

def showCliplist(self):
    data = self.metadata_list
    luts = self.lutlist
    selected_lut = self.LUTBox.currentIndex()
    openTable = ClipListViewer(data,luts,selected_lut)
    self.openTable.show()

class ClipListViewer(QtGui.QWidget):

    def __init__(self, data, luts, selected_lut, parent = None):
        super(ClipListViewer,self).__init__()
        self.setWindowTitle('Cliplist')
        self.resize(900,600)
        self.metadata = data
        self.curentluts = luts
        self.choosenlut = selected_lut

        y_count = len(self.metadata)
        self.table = QtGui.QTableWidget(y_count,6)
        self.table.setHorizontalHeaderLabels(['Clip', 'Videocodec', 'FPS', 'Audiocodec', 'Start Timecode', 'LUT'])
        x = y = 0
        for items in self.metadata:
            for entry in items:
                #print entry
                self.table.setItem(y, x, QtGui.QTableWidgetItem(entry))
                self.table.resizeColumnToContents(x)
                x += 1
            self.comb = QtGui.QComboBox()
            for lutname in self.curentluts:
                self.comb.addItem(lutname)
                self.comb.setCurrentIndex(self.choosenlut)
            self.table.setCellWidget(y, 5, self.comb)
            self.table.setColumnWidth(5,  230)
            y += 1
            x = 0

        self.table.resizeRowsToContents()

        layout = QtGui.QHBoxLayout()
        layout.addWidget(self.table)
        self.setLayout(layout)

        self.show()

    def closeEvent(self, event):  #check if window was closed
        print "Cliplist Window was closed! "

---

我检查了你的代码，好的，让我解释一下

AttributeError: 'Ui_MainWindow' object has no attribute 'openTable'

此错误表示，，“我在类Ui\u MainWindow中没有self.openTable（这是真的，因为您有自己的创建方法）”

为什么？：因为这方面存在问题

def showCliplist(self):
    data = self.metadata_list
    luts = self.lutlist
    selected_lut = self.LUTBox.currentIndex()
    openTable = ClipListViewer(data,luts,selected_lut) # <- (1) THIS LINE
    self.openTable.show() # <- (2) THIS LINE

为什么在调用

self.openTable.show（）之前显示第二个小部件

回答：您可以在第二个小部件的最后一行代码中看到您的see
QtGui.QWidget.show（self）
在启动结束前已被调用

class ClipListViewer(QtGui.QWidget):

    def __init__(self, data, luts, selected_lut, parent = None):
        super(ClipListViewer,self).__init__()
        .
        .
        .
        self.show() # <- THIS LINE

类ClipListViewer（QtGui.QWidget）：
定义初始化（自身、数据、lut、选定的lut、父项=无）：
超级（ClipListViewer，self）。\uu初始化
.
.
.
self.show（）#非常感谢！现在一切都好了！