Python pyqt5 GUI中的 与另一个脚本交互

下面是我的代码，我想让TextBroswer中的显示结果textBrowser.toPlaintext()这个东西输出出来当做我另一个脚本的输入，那么如何让这个信号输出出来，并且随着我的实时点击的结果变化呢？

import sys
import numpy as np
import pandas
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import pyqtSignal
import os
from CAN_ID_Chech_GUI_source import *

class TempWidget(QtWidgets.QMainWindow,Ui_MainWindow):
    BCAN_name=pyqtSignal(str)
    a=pyqtSignal(str)

    def __init__(self, parent=None):
        super(TempWidget,self).__init__(parent)
        self.setupUi(self)  
        self.pushButton.clicked.connect(self.Open_excelFile_B)
        self.pushButton_2.clicked.connect(self.Open_excelFile_C)
        self.pushButton_3.clicked.connect(self.Open_excelFile_P)
        self.pushButton_4.clicked.connect(self.Open_excelFile_R)
        self.pushButton_5.clicked.connect(self.Open_excelFile_O)
        self.pushButton_6.clicked.connect(self.Open_excelFile_I)

    def center(self):
        qr=self.frameGeometry()
        cp=QtWidgets.QDesktopWidget.availableGeometry().center()
        qr.moveCenter(cp)
        self.move(qr.topLeft())
        
    def Open_excelFile_B(self):
        self.textBrowser_2.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        fileBaseName=os.path.dirname(self.fileName[0])
        self.textBrowser_2.setText(fileBaseName)
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_2.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_2.setText(fileBaseName)
                 self.a=self.textBrowser_2.toPlainText()
                 print(self.a)
                 self.BCAN_name.emit(self.a)

    def Open_excelFile_C(self):
        self.textBrowser_3.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_3.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_3.setText(fileBaseName)

    def Open_excelFile_P(self):
        self.textBrowser_4.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_4.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_4.setText(fileBaseName)
    def Open_excelFile_R(self):
        self.textBrowser_5.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_5.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_5.setText(fileBaseName)
    def Open_excelFile_O(self):
        self.textBrowser_6.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_6.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_6.setText(fileBaseName)
    def Open_excelFile_I(self):
        self.textBrowser_7.clear()
        self.fileName = list()
        self.fileName,fileType = QtWidgets.QFileDialog.getOpenFileNames(None,"选取文件",os.getcwd(),"Excel Files(*.xlsx *.xls)")
        if len(self.fileName)>0:
             filePath = os.path.dirname(self.fileName[0])
             os.chdir(filePath)
             self.textBrowser_7.clear()
             for i in self.fileName:
                 fileBaseName = os.path.basename(i)
                 self.textBrowser_7.setText(fileBaseName)

        

        
    
               
if __name__ == '__main__':
        app = QtWidgets.QApplication(sys.argv)
        ui = TempWidget()
        ui.show()

        sys.exit(app.exec_())