PyQt5进度条可跟踪导入的库

Question

我有一个PyQt5窗口来跟踪加载的库的数量和时间等。我希望它显示当前正在导入的库并在进度条上显示。

我控制进度条的代码是：

    def setProgress(self):
        self.progressBar.setValue(0)
        self.CurrentlyLoading.setText("Loading Sympy")
        from sympy import *
        self.numberLoaded.setText("Loaded 1/3")
        self.progressBar.setValue(33)

        self.CurrentlyLoading.setText("Loading parse_expr")
        from sympy.parsing.sympy_parser import parse_expr
        self.numberLoaded.setText("Loaded 2/3")
        self.progressBar.setValue(67)

        self.CurrentlyLoading.setText("Loading pyperclip")
        from pyperclip import copy
        self.numberLoaded.setText("Loaded 3/3")
        self.progressBar.setValue(100)

但这会导致错误

  

SyntaxError：import *仅在模块级别允许

由于函数在类内部，如何解决此问题？

完整代码：

class LoadingWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.setFixedSize(250,130)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
        self.verticalLayout.setObjectName("verticalLayout")
        self.numberLoaded = QtWidgets.QLabel(self.centralwidget)
        self.numberLoaded.setLayoutDirection(QtCore.Qt.LeftToRight)
        self.numberLoaded.setAlignment(QtCore.Qt.AlignCenter)
        self.numberLoaded.setObjectName("numberLoaded")
        self.verticalLayout.addWidget(self.numberLoaded)
        self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar.setProperty("value", 0)
        self.progressBar.setObjectName("progressBar")
        self.verticalLayout.addWidget(self.progressBar)
        self.CurrentlyLoading = QtWidgets.QLabel(self.centralwidget)
        self.CurrentlyLoading.setMinimumSize(QtCore.QSize(250, 25))
        self.CurrentlyLoading.setMaximumSize(QtCore.QSize(250, 25))
        self.CurrentlyLoading.setAlignment(QtCore.Qt.AlignCenter)
        self.CurrentlyLoading.setWordWrap(False)
        self.CurrentlyLoading.setObjectName("CurrentlyLoading")
        self.verticalLayout.addWidget(self.CurrentlyLoading)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 271, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

        self.setProgress()

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.numberLoaded.setText(_translate("MainWindow", "Loading 0/%NUMBER%"))
        self.CurrentlyLoading.setText(_translate("MainWindow", "Loading %LIBRARY%"))

    def setProgress(self):
        self.progressBar.setValue(0)
        self.CurrentlyLoading.setText("Loading Sympy")
        from sympy import *
        self.numberLoaded.setText("Loaded 1/3")
        self.progressBar.setValue(33)

        self.CurrentlyLoading.setText("Loading parse_expr")
        from sympy.parsing.sympy_parser import parse_expr
        self.numberLoaded.setText("Loaded 2/3")
        self.progressBar.setValue(67)

        self.CurrentlyLoading.setText("Loading pyperclip")
        from pyperclip import copy
        self.numberLoaded.setText("Loaded 3/3")
        self.progressBar.setValue(100)

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = LoadingWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())