Python Can'；t使用pyqt5显示秒表

我正在构建一个非常简单的GUI，但我无法计算出我的秒表。 我有两个不同的文件——一个用于GUI的变量，另一个用于拥有所有功能的main。 我的目标是，一旦用户按下“运行”按钮，计时器就会出现在小文本框中，以“hh:mm:ss”的形式每秒改变一次。 我所做的基本上是收集一些信息和一些我认为适合我的脚本的代码行，但我认为我有一些地方出错了，并且它不起作用（我试图更改一些内容，但每次都会出现不同的错误…）

这些是我的文件：

GUI文件：

from PyQt5 import QtCore, QtGui, QtWidgets



 class Ui_MainWindow(object):
  def setupUi(self, MainWindow):
    MainWindow.setObjectName("MainWindow")
    MainWindow.resize(895, 422)
    self.centralwidget = QtWidgets.QWidget(MainWindow)
    self.centralwidget.setObjectName("centralwidget")


    self.timer=QtCore.QTimer(self.centralwidget)
    self.timer.timeout.connect(self.showTime)
    self.timer.start(1000)
    self.showTime(MainWindow)

    ###txtoutput = big window for text###
    self.txtoutput = QtWidgets.QTextBrowser(self.centralwidget)
    self.txtoutput.setGeometry(QtCore.QRect(150, 200, 471, 192))
    self.txtoutput.setObjectName("txtoutput")

    ###modeltype = droplist###
    self.modeltype = QtWidgets.QComboBox(self.centralwidget)
    self.modeltype.setGeometry(QtCore.QRect(50, 90, 69, 22))
    self.modeltype.setObjectName("modeltype")
    self.modeltype.addItem("")
    self.modeltype.addItem("")
    self.modeltype.addItem("")

    ###seriallbl = label above input window###
    self.seriallbl = QtWidgets.QLabel(self.centralwidget)
    self.seriallbl.setGeometry(QtCore.QRect(90, 30, 81, 16))
    self.seriallbl.setObjectName("seriallbl")

    ###getserialbtn = "Enter" button###
    self.getserialbtn = QtWidgets.QPushButton(self.centralwidget)
    self.getserialbtn.setGeometry(QtCore.QRect(210, 50, 75, 23))
    self.getserialbtn.setObjectName("getserialbtn")

    ###chuckrealeasebtn = "Chuck"/"Release" button###
    self.chuckrealeasebtn = QtWidgets.QPushButton(self.centralwidget)
    self.chuckrealeasebtn.setEnabled(False)
    self.chuckrealeasebtn.setGeometry(QtCore.QRect(50, 120, 75, 23))
    self.chuckrealeasebtn.setObjectName("chuckrealeasebtn")
    self.chuckrealeasebtn.setCheckable(True)

    ###runbtn = "Run" button###
    self.runbtn = QtWidgets.QPushButton(self.centralwidget)
    self.runbtn.setEnabled(False)
    self.runbtn.setGeometry(QtCore.QRect(580, 70, 91, 61))
    font = QtGui.QFont()
    font.setPointSize(28)
    font.setBold(True)
    font.setWeight(75)
    self.runbtn.setFont(font)
    self.runbtn.setCheckable(False)
    self.runbtn.setObjectName("runbtn")

    ###serialinput = Text box for serial # input###
    self.serialinput = QtWidgets.QTextEdit(self.centralwidget)
    self.serialinput.setGeometry(QtCore.QRect(50, 50, 151, 31))
    self.serialinput.setObjectName("serialinput")

    ###stopbtn = "Stop" button###
    self.stopbtn = QtWidgets.QPushButton(self.centralwidget)
    self.stopbtn.setGeometry(QtCore.QRect(680, 70, 91, 61))
    font = QtGui.QFont()
    font.setPointSize(28)
    font.setBold(True)
    font.setWeight(75)
    self.stopbtn.setFont(font)
    self.stopbtn.setObjectName("stopbtn")

    ###exitbtn = "Exit" button###
    self.exitbtn = QtWidgets.QPushButton(self.centralwidget)
    self.exitbtn.setGeometry(QtCore.QRect(740, 370, 75, 23))
    self.exitbtn.setObjectName("exitbtn")
    self.timelbl = QtWidgets.QLabel(self.centralwidget)
    self.timelbl.setGeometry(QtCore.QRect(320, 140, 47, 13))
    self.timelbl.setObjectName("timelbl")

    ###timertxt = label above timer window###
    self.timertxt = QtWidgets.QTextBrowser(self.centralwidget)
    self.timertxt.setGeometry(QtCore.QRect(260, 160, 141, 31))
    self.timertxt.setObjectName("timertxt")


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



def retranslateUi(self, MainWindow):
    _translate = QtCore.QCoreApplication.translate
    MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
    self.modeltype.setItemText(0, _translate("MainWindow", "Type 1"))
    self.modeltype.setItemText(1, _translate("MainWindow", "Type 2"))
    self.modeltype.setItemText(2, _translate("MainWindow", "Type 3"))
    self.seriallbl.setText(_translate("MainWindow", "Enter serial #"))
    self.getserialbtn.setText(_translate("MainWindow", "Enter"))
    self.chuckrealeasebtn.setText(_translate("MainWindow", "chuck"))
    self.runbtn.setText(_translate("MainWindow", "Run"))
    self.stopbtn.setText(_translate("MainWindow", "Stop"))
    self.exitbtn.setText(_translate("MainWindow", "Exit"))
    self.timelbl.setText(_translate("MainWindow", "Timer"))

我的主要观点是：

from PyQt5 import QtWidgets, QtCore, QtGui
from mainwin import Ui_MainWindow


class ApplicationWindow(QtWidgets.QMainWindow):
  def __init__(self):
   super(ApplicationWindow, self).__init__()

   self.ui = Ui_MainWindow()
   self.ui.setupUi(self)   

   self.ui.exitbtn.clicked.connect(self.exitclicked)      
   self.ui.getserialbtn.clicked.connect(self.serialentered)
   self.ui.chuckrealeasebtn.clicked.connect(self.chuckclicked)
   self.ui.runbtn.clicked.connect(self.showTime)

###exitclicked = "Exit" button function###
def exitclicked(self):                                      
    self.close()


def showTime(self):
    time=self.ui.QTime.currentTime()
    text=self.ui.time.toString('hh:mm:ss')
    if(time.second()%2==0):
        text=text[:2]+ ' ' +text [3:]
    self.ui.txtoutput.append(text)


###chuckclicked = "Chuck"/"Release" button function###    
def chuckclicked(self):
    if self.ui.chuckrealeasebtn.isChecked():
        mytext = self.ui.serialinput.toPlainText()
        self.ui.chuckrealeasebtn.setText("Release")
        self.ui.getserialbtn.setEnabled(False)
        self.ui.runbtn.setEnabled(True)
        self.ui.txtoutput.append(mytext+" - is chucked, Ready to run")
    else:
        self.ui.chuckrealeasebtn.setText("Chuck")
        self.ui.txtoutput.clear()
        self.ui.chuckrealeasebtn.setEnabled(False)
        self.ui.getserialbtn.setEnabled(True)
        self.ui.runbtn.setEnabled(False)

###serialentered = function that checks if the serial # that was entered is found or not found in a certain list###    
def serialentered(self):
    serialnum = self.ui.serialinput.toPlainText()
    listnum=self.ui.modeltype.currentIndex()
    if (listnum==0):
        with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 1.txt') as r1:
            if serialnum in r1.read():
                self.ui.txtoutput.append(serialnum+" - Serial was found in List 1")
                self.ui.chuckrealeasebtn.setEnabled(True)
            else:
                self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 1")
                self.ui.chuckrealeasebtn.setEnabled(False)
    elif (listnum==1):
        with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 2.txt') as r2:
            if serialnum in r2.read():
                self.ui.txtoutput.append(serialnum+" - Serial was found in List 2")
                self.ui.chuckrealeasebtn.setEnabled(True)
            else:
                self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 2")
                self.ui.chuckrealeasebtn.setEnabled(False)
    elif (listnum==2):
        with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 3.txt') as r3:
            if serialnum in r3.read():
                self.ui.txtoutput.append(serialnum+" - Serial was found in List 3")
                self.ui.chuckrealeasebtn.setEnabled(True)
            else:
                 self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 3")
                 self.ui.chuckrealeasebtn.setEnabled(False)



 def main():
  import sys
  app = QtWidgets.QApplication(sys.argv)
  application = ApplicationWindow()
  application.show()
  sys.exit(app.exec_())

if __name__ == "__main__":
 main()

所以我不确定这里到底出了什么问题-如果有人有我没想到的想法，我会很高兴的

提前谢谢各位

---

***我应该编辑，我希望秒表从00:00:00开始，并在我点击“运行”按钮后每秒计数一次“

切勿修改在QT Designer中创建的模块。 试试看：

---

更新

为什么我不应该编辑在QT designer中创建的模块

如果你想改变你的设计，你自己想想会发生什么。你会很长时间记住你需要做什么改变

我希望我的秒表从0开始计时，并且每秒钟计数一次。是否有办法做到这一点，或者我只能显示当前时间

---

你好，尼克！首先-非常感谢。我有几个问题：为什么我不应该编辑在QT designer中创建的模块？我编辑了一个问题，我希望秒表从0开始，然后每秒钟计数。有没有办法，或者我只能显示当前时间？非常感谢！嘿，尼克，很抱歉，我仍然为此而打扰你：我现在是当我按下“停止”按钮时，试图使秒表再次变为0，但基本上下次秒表的速度会加倍…@Alon123提出一个新问题，附上最新版本的示例。写下你想做什么和不能做什么。

from PyQt5 import QtCore, QtGui, QtWidgets


# from mainwin import Ui_MainWindow
class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(895, 422)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")


# -       self.timer=QtCore.QTimer(self.centralwidget)
# -       self.timer.timeout.connect(self.showTime)
# -       self.timer.start(1000)
# -       self.showTime(MainWindow)

        ###txtoutput = big window for text###
        self.txtoutput = QtWidgets.QTextBrowser(self.centralwidget)
        self.txtoutput.setGeometry(QtCore.QRect(150, 200, 471, 192))
        self.txtoutput.setObjectName("txtoutput")

        ###modeltype = droplist###
        self.modeltype = QtWidgets.QComboBox(self.centralwidget)
        self.modeltype.setGeometry(QtCore.QRect(50, 90, 69, 22))
        self.modeltype.setObjectName("modeltype")
        self.modeltype.addItem("")
        self.modeltype.addItem("")
        self.modeltype.addItem("")

        ###seriallbl = label above input window###
        self.seriallbl = QtWidgets.QLabel(self.centralwidget)
        self.seriallbl.setGeometry(QtCore.QRect(90, 30, 81, 16))
        self.seriallbl.setObjectName("seriallbl")

        ###getserialbtn = "Enter" button###
        self.getserialbtn = QtWidgets.QPushButton(self.centralwidget)
        self.getserialbtn.setGeometry(QtCore.QRect(210, 50, 75, 23))
        self.getserialbtn.setObjectName("getserialbtn")

        ###chuckrealeasebtn = "Chuck"/"Release" button###
        self.chuckrealeasebtn = QtWidgets.QPushButton(self.centralwidget)
        self.chuckrealeasebtn.setEnabled(False)
        self.chuckrealeasebtn.setGeometry(QtCore.QRect(50, 120, 75, 23))
        self.chuckrealeasebtn.setObjectName("chuckrealeasebtn")
        self.chuckrealeasebtn.setCheckable(True)

        ###runbtn = "Run" button###
        self.runbtn = QtWidgets.QPushButton(self.centralwidget)
# -       self.runbtn.setEnabled(False)
        self.runbtn.setGeometry(QtCore.QRect(580, 70, 91, 61))
        font = QtGui.QFont()
        font.setPointSize(28)
        font.setBold(True)
        font.setWeight(75)
        self.runbtn.setFont(font)
        self.runbtn.setCheckable(False)
        self.runbtn.setObjectName("runbtn")

        ###serialinput = Text box for serial # input###
        self.serialinput = QtWidgets.QTextEdit(self.centralwidget)
        self.serialinput.setGeometry(QtCore.QRect(50, 50, 151, 31))
        self.serialinput.setObjectName("serialinput")

        ###stopbtn = "Stop" button###
        self.stopbtn = QtWidgets.QPushButton(self.centralwidget)
        self.stopbtn.setGeometry(QtCore.QRect(680, 70, 91, 61))
        font = QtGui.QFont()
        font.setPointSize(28)
        font.setBold(True)
        font.setWeight(75)
        self.stopbtn.setFont(font)
        self.stopbtn.setObjectName("stopbtn")

        ###exitbtn = "Exit" button###
        self.exitbtn = QtWidgets.QPushButton(self.centralwidget)
        self.exitbtn.setGeometry(QtCore.QRect(740, 370, 75, 23))
        self.exitbtn.setObjectName("exitbtn")
        self.timelbl = QtWidgets.QLabel(self.centralwidget)
        self.timelbl.setGeometry(QtCore.QRect(320, 140, 47, 13))
        self.timelbl.setObjectName("timelbl")

        ###timertxt = label above timer window###
        self.timertxt = QtWidgets.QTextBrowser(self.centralwidget)
        self.timertxt.setGeometry(QtCore.QRect(260, 160, 141, 31))
        self.timertxt.setObjectName("timertxt")


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



    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.modeltype.setItemText(0, _translate("MainWindow", "Type 1"))
        self.modeltype.setItemText(1, _translate("MainWindow", "Type 2"))
        self.modeltype.setItemText(2, _translate("MainWindow", "Type 3"))
        self.seriallbl.setText(_translate("MainWindow", "Enter serial #"))
        self.getserialbtn.setText(_translate("MainWindow", "Enter"))
        self.chuckrealeasebtn.setText(_translate("MainWindow", "chuck"))
        self.runbtn.setText(_translate("MainWindow", "Run"))
        self.stopbtn.setText(_translate("MainWindow", "Stop"))
        self.exitbtn.setText(_translate("MainWindow", "Exit"))
        self.timelbl.setText(_translate("MainWindow", "Timer"))


class ApplicationWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super(ApplicationWindow, self).__init__()

        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)   

        self.ui.exitbtn.clicked.connect(self.exitclicked)      
        self.ui.getserialbtn.clicked.connect(self.serialentered)
        self.ui.chuckrealeasebtn.clicked.connect(self.chuckclicked)
        self.ui.runbtn.clicked.connect(self.onClick_runbtn)         # - (self.showTime)

        self.timer = QtCore.QTimer(self)                            # +++
        self.timer.timeout.connect(self.showTime)                   # +++

    ###exitclicked = "Exit" button function###
    def exitclicked(self):                                      
        self.close()

    def onClick_runbtn(self):                                       # +++
        self.timer.start(1000)                                      # +++

    def showTime(self):
        time = QtCore.QTime.currentTime()                           # - self.ui.QTime.currentTime()
        text = time.toString('hh:mm:ss')                            # - self.ui.time.toString('hh:mm:ss')
        if(time.second()%2==0):
            text = text[:2]+ ' ' +text [3:]
#        self.ui.txtoutput.append(text)
        self.ui.timelbl.setText(text)

    ###chuckclicked = "Chuck"/"Release" button function###    
    def chuckclicked(self):
        if self.ui.chuckrealeasebtn.isChecked():
            mytext = self.ui.serialinput.toPlainText()
            self.ui.chuckrealeasebtn.setText("Release")
            self.ui.getserialbtn.setEnabled(False)
            self.ui.runbtn.setEnabled(True)
            self.ui.txtoutput.append(mytext+" - is chucked, Ready to run")
        else:
            self.ui.chuckrealeasebtn.setText("Chuck")
            self.ui.txtoutput.clear()
            self.ui.chuckrealeasebtn.setEnabled(False)
            self.ui.getserialbtn.setEnabled(True)
            self.ui.runbtn.setEnabled(False)

    ###serialentered = function that checks if the serial # that was entered is found or not found in a certain list###    
    def serialentered(self):
        serialnum = self.ui.serialinput.toPlainText()
        listnum=self.ui.modeltype.currentIndex()
        if (listnum==0):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 1.txt') as r1:
                if serialnum in r1.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 1")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                    self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 1")
                    self.ui.chuckrealeasebtn.setEnabled(False)
        elif (listnum==1):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 2.txt') as r2:
                if serialnum in r2.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 2")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                    self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 2")
                    self.ui.chuckrealeasebtn.setEnabled(False)
        elif (listnum==2):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 3.txt') as r3:
                if serialnum in r3.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 3")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                     self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 3")
                     self.ui.chuckrealeasebtn.setEnabled(False)



if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    application = ApplicationWindow()
    application.show()
    sys.exit(app.exec_())

from PyQt5 import QtCore, QtGui, QtWidgets
import time                                                            # +++

# from mainwin import Ui_MainWindow
class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(895, 422)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        ###txtoutput = big window for text###
        self.txtoutput = QtWidgets.QTextBrowser(self.centralwidget)
        self.txtoutput.setGeometry(QtCore.QRect(150, 200, 471, 192))
        self.txtoutput.setObjectName("txtoutput")
        ###modeltype = droplist###
        self.modeltype = QtWidgets.QComboBox(self.centralwidget)
        self.modeltype.setGeometry(QtCore.QRect(50, 90, 69, 22))
        self.modeltype.setObjectName("modeltype")
        self.modeltype.addItem("")
        self.modeltype.addItem("")
        self.modeltype.addItem("")
        ###seriallbl = label above input window###
        self.seriallbl = QtWidgets.QLabel(self.centralwidget)
        self.seriallbl.setGeometry(QtCore.QRect(90, 30, 81, 16))
        self.seriallbl.setObjectName("seriallbl")
        ###getserialbtn = "Enter" button###
        self.getserialbtn = QtWidgets.QPushButton(self.centralwidget)
        self.getserialbtn.setGeometry(QtCore.QRect(210, 50, 75, 23))
        self.getserialbtn.setObjectName("getserialbtn")
        ###chuckrealeasebtn = "Chuck"/"Release" button###
        self.chuckrealeasebtn = QtWidgets.QPushButton(self.centralwidget)
        self.chuckrealeasebtn.setEnabled(False)
        self.chuckrealeasebtn.setGeometry(QtCore.QRect(50, 120, 75, 23))
        self.chuckrealeasebtn.setObjectName("chuckrealeasebtn")
        self.chuckrealeasebtn.setCheckable(True)
        ###runbtn = "Run" button###
        self.runbtn = QtWidgets.QPushButton(self.centralwidget)
# -       self.runbtn.setEnabled(False)
        self.runbtn.setGeometry(QtCore.QRect(580, 70, 91, 61))
        font = QtGui.QFont()
        font.setPointSize(28)
        font.setBold(True)
        font.setWeight(75)
        self.runbtn.setFont(font)
        self.runbtn.setCheckable(False)
        self.runbtn.setObjectName("runbtn")
        ###serialinput = Text box for serial # input###
        self.serialinput = QtWidgets.QTextEdit(self.centralwidget)
        self.serialinput.setGeometry(QtCore.QRect(50, 50, 151, 31))
        self.serialinput.setObjectName("serialinput")
        ###stopbtn = "Stop" button###
        self.stopbtn = QtWidgets.QPushButton(self.centralwidget)
        self.stopbtn.setGeometry(QtCore.QRect(680, 70, 91, 61))
        font = QtGui.QFont()
        font.setPointSize(28)
        font.setBold(True)
        font.setWeight(75)
        self.stopbtn.setFont(font)
        self.stopbtn.setObjectName("stopbtn")
        ###exitbtn = "Exit" button###
        self.exitbtn = QtWidgets.QPushButton(self.centralwidget)
        self.exitbtn.setGeometry(QtCore.QRect(740, 370, 75, 23))
        self.exitbtn.setObjectName("exitbtn")
        self.timelbl = QtWidgets.QLabel(self.centralwidget)
        self.timelbl.setGeometry(QtCore.QRect(260, 140, 147, 23))         # +
        self.timelbl.setObjectName("timelbl")
        ###timertxt = label above timer window###
        self.timertxt = QtWidgets.QTextBrowser(self.centralwidget)
        self.timertxt.setGeometry(QtCore.QRect(260, 160, 141, 31))
        self.timertxt.setObjectName("timertxt")

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

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.modeltype.setItemText(0, _translate("MainWindow", "Type 1"))
        self.modeltype.setItemText(1, _translate("MainWindow", "Type 2"))
        self.modeltype.setItemText(2, _translate("MainWindow", "Type 3"))
        self.seriallbl.setText(_translate("MainWindow", "Enter serial #"))
        self.getserialbtn.setText(_translate("MainWindow", "Enter"))
        self.chuckrealeasebtn.setText(_translate("MainWindow", "chuck"))
        self.runbtn.setText(_translate("MainWindow", "Run"))
        self.stopbtn.setText(_translate("MainWindow", "Stop"))
        self.exitbtn.setText(_translate("MainWindow", "Exit"))
        self.timelbl.setText(_translate("MainWindow", "Timer"))


class ApplicationWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super(ApplicationWindow, self).__init__()

        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)   

        self.ui.exitbtn.clicked.connect(self.exitclicked)      
        self.ui.getserialbtn.clicked.connect(self.serialentered)
        self.ui.chuckrealeasebtn.clicked.connect(self.chuckclicked)
        self.ui.runbtn.clicked.connect(self.onClick_runbtn)            # + self.onClick_runbtn 

### VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV

        self.timer = QtCore.QTimer(self)                            
        self.timer.timeout.connect(self.showTime)                   
        self.time = 0
        self.timeInterval = 1000

    def onClick_runbtn(self):                                       
        self.timer.start(self.timeInterval)                                      
        self.timeViewer = QtWidgets.QLCDNumber(self)
        self.timeViewer.setGeometry(QtCore.QRect(280, 80, 100, 45))
        self.timeViewer.show()

    def showTime(self):  
        self.time += 1
        self.settimer(self.time)
        ##print(self.time)

    def settimer(self, int):
        self.time = int
        self.timeViewer.display(self.time)
        if self.timeInterval == 1000:
            self.ui.timelbl.setText(time.strftime('%H hour %M minute %S second',time.gmtime(self.time)))

### ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^       

    ###exitclicked = "Exit" button function###
    def exitclicked(self):                                      
        self.close()        

    ###chuckclicked = "Chuck"/"Release" button function###    
    def chuckclicked(self):
        if self.ui.chuckrealeasebtn.isChecked():
            mytext = self.ui.serialinput.toPlainText()
            self.ui.chuckrealeasebtn.setText("Release")
            self.ui.getserialbtn.setEnabled(False)
            self.ui.runbtn.setEnabled(True)
            self.ui.txtoutput.append(mytext+" - is chucked, Ready to run")
        else:
            self.ui.chuckrealeasebtn.setText("Chuck")
            self.ui.txtoutput.clear()
            self.ui.chuckrealeasebtn.setEnabled(False)
            self.ui.getserialbtn.setEnabled(True)
            self.ui.runbtn.setEnabled(False)

    ###serialentered = function that checks if the serial # that was entered is found or not found in a certain list###    
    def serialentered(self):
        serialnum = self.ui.serialinput.toPlainText()
        listnum=self.ui.modeltype.currentIndex()
        if (listnum==0):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 1.txt') as r1:
                if serialnum in r1.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 1")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                    self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 1")
                    self.ui.chuckrealeasebtn.setEnabled(False)
        elif (listnum==1):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 2.txt') as r2:
                if serialnum in r2.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 2")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                    self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 2")
                    self.ui.chuckrealeasebtn.setEnabled(False)
        elif (listnum==2):
            with open(r'C:\Users\hv_lab\Documents\python tests\Serial Numbers - Type 3.txt') as r3:
                if serialnum in r3.read():
                    self.ui.txtoutput.append(serialnum+" - Serial was found in List 3")
                    self.ui.chuckrealeasebtn.setEnabled(True)
                else:
                     self.ui.txtoutput.append(serialnum+" - Serial was NOT found in List 3")
                     self.ui.chuckrealeasebtn.setEnabled(False)


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    application = ApplicationWindow()
    application.show()
    sys.exit(app.exec_())