title: Get text from qtextedit and assign it to a variable
body: <p>When I try to get the text from the qtextedit created with PyQt5 Designer I get an error or "Python stop working" and the script stop automatically. I've tried multiple solutions but nothing works. I have to assign the text from the qtextedit to a variable, for check if the process run or no. That's the code generated by PyQt5:</p>
  
  <pre><code>from PyQt5 import QtCore, QtGui, QtWidgets
  import psutil
  class Ui_MainWindow(object):
      def setupUi(self, MainWindow):
          MainWindow.setObjectName("MainWindow")
          MainWindow.resize(221, 157)
          MainWindow.setMinimumSize(QtCore.QSize(221, 157))
          MainWindow.setMaximumSize(QtCore.QSize(221, 157))
          self.centralwidget = QtWidgets.QWidget(MainWindow)
          self.centralwidget.setObjectName("centralwidget")
          self.cercaprocesso = QtWidgets.QPushButton(self.centralwidget)
          self.cercaprocesso.setGeometry(QtCore.QRect(0, 80, 221, 31))
          font = QtGui.QFont()
          font.setFamily("MS Shell Dlg 2")
          font.setPointSize(10)
          font.setBold(True)
          font.setWeight(75)
          self.cercaprocesso.setFont(font)
          self.cercaprocesso.setObjectName("pushButton")
          self.label = QtWidgets.QLabel(self.centralwidget)
          self.label.setGeometry(QtCore.QRect(0, 0, 221, 40))
          font = QtGui.QFont()
          font.setPointSize(10)
          font.setBold(True)
          font.setWeight(75)
          self.label.setFont(font)
          self.label.setAlignment(QtCore.Qt.AlignCenter)
          self.label.setObjectName("label")
          self.textbox = QtWidgets.QTextEdit(self.centralwidget)
          self.textbox.setGeometry(QtCore.QRect(30, 40, 161, 31))
          self.textbox.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
          self.textbox.setObjectName("textEdit")
          MainWindow.setCentralWidget(self.centralwidget)
          self.menubar = QtWidgets.QMenuBar(MainWindow)
          self.menubar.setGeometry(QtCore.QRect(0, 0, 221, 21))
          self.menubar.setObjectName("menubar")
          self.menucredit = QtWidgets.QMenu(self.menubar)
          self.menucredit.setObjectName("menucredit")
          MainWindow.setMenuBar(self.menubar)
          self.statusbar = QtWidgets.QStatusBar(MainWindow)
          self.statusbar.setObjectName("statusbar")
          MainWindow.setStatusBar(self.statusbar)
          self.actionbot_created_by_andrea1980345_inforge_user = QtWidgets.QAction(MainWindow)     
          self.actionbot_created_by_andrea1980345_inforge_user.setObjectName ("actionbot")
          self.menucredit.addAction(self.actionbot_created_by_andrea1980345_inforge_user)
          self.menubar.addAction(self.menucredit.menuAction())
  
          self.retranslateUi(MainWindow)
          QtCore.QMetaObject.connectSlotsByName(MainWindow)
  </code></pre>
  
  <p>Button Code here:</p>
  
  <pre><code>def retranslateUi(self, MainWindow):
      _translate = QtCore.QCoreApplication.translate
      MainWindow.setWindowTitle(_translate("MainWindow", "andrea1980345 Bot"))
      self.cercaprocesso.setText(_translate("MainWindow", "Cerca Processo"))
      self.label.setText(_translate("MainWindow", "Inserire il nome del processo"))
      self.menucredit.setTitle(_translate("MainWindow", "Credit"))
      self.actionbot_created_by_andrea1980345_inforge_user.setText(_translate("MainWindow", "bot"))
      self.cercaprocesso.clicked.connect(self.search)
  </code></pre>
  
  <p>Here the code for get the text from the textbox and assign to a variable:</p>
  
  <pre><code>def search(self):
      textboxValue = self.textbox.text()
      for pid in psutil.pids():  # Controlla se il processo è attivo
          listapid = psutil.Process(pid)
          if listapid.name() == textboxValue:
              print('Processo trovato')
      self.textbox.setText("")
  </code></pre>
  
  <p>End code:</p>
  
  <pre><code>if __name__ == "__main__":
      import sys
      app = QtWidgets.QApplication(sys.argv)
      MainWindow = QtWidgets.QMainWindow()
      ui = Ui_MainWindow()
      ui.setupUi(MainWindow)
      MainWindow.show()
      sys.exit(app.exec_())
  </code></pre>