[PyQt] How to clear multiple Qlineedit in a loop

[mart79]

This is done when during creation

MyLineEditDict[key] = self.txtNamePerson

Then when you need to do something to them all you just do this

for key in MyLineEditDict.keys()
    MyLineEditDict[key].setText('None for All')

Note: key is whatever you want it to be since how it is being used means there is no need to care what it is, however, if you want to handle your LineEdits a bit more semi-sequential or perhaps more intuitively you could make it a numeric index of some sort. Regardless the basics of this would not change any just its particulars.

Thanks for the help. However, this assumes that the QLineEdit can be indexed during creation. I am using a designer and I have no idea where to start.
I have been struggling some time now. The ui py file is used to call the respective QLineEdit.

Main .py file which needs to loop through the QLineEdit:

from PyQt5 import QtCore, QtGui, QtWidgets
from ui import Ui_Dialog
from PyQt5.QtWidgets import  QApplication, QTreeWidget, QTreeWidgetItem,  QComboBox
from PyQt5.QtCore import pyqtSlot
from PyQt5.QtCore import QRegExp
from PyQt5.QtGui import QRegExpValidator
import numpy as np
import os

class Main(QtWidgets.QMainWindow, Ui_Dialog):
    def __init__(self, parent=None):
        self.current_directory = os.getcwd()
        self.regex = QRegExp("[0-9._]+")
        self.validator = QRegExpValidator(self.regex)

        super(Main, self).__init__(parent)
        self.setupUi(self)
        self.txtWeight.setValidator(self.validator)
        self.btnAddNew.clicked.connect(self.clearQLineEdit)
    
    def clearQLineEdit(self):
     ------ code that loops through the QLineEdit ---------

ui.py with the ui set-up:

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName("Dialog")
        Dialog.resize(342, 217)
        self.Details = QtWidgets.QGroupBox(Dialog)
        self.Details.setGeometry(QtCore.QRect(10, 10, 321, 201))
        self.Details.setObjectName("Details")
        self.Main = QtWidgets.QGroupBox(self.Details)
        self.Main.setGeometry(QtCore.QRect(10, 20, 301, 141))
        self.Main.setObjectName("Main")
        self.txtName = QtWidgets.QLineEdit(self.Main)
        self.txtName.setGeometry(QtCore.QRect(150, 20, 131, 20))
        self.txtName.setObjectName("txtName")
        self.label = QtWidgets.QLabel(self.Main)
        self.label.setGeometry(QtCore.QRect(10, 20, 51, 16))
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.Main)
        self.label_2.setGeometry(QtCore.QRect(10, 50, 111, 16))
        self.label_2.setObjectName("label_2")
        self.txtWeight = QtWidgets.QLineEdit(self.Main)
        self.txtWeight.setGeometry(QtCore.QRect(150, 50, 61, 20))
        self.txtWeight.setInputMethodHints(QtCore.Qt.ImhDigitsOnly)
        self.txtWeight.setObjectName("txtWeight")
        self.txtYear = QtWidgets.QLineEdit(self.Main)
        self.txtYear.setGeometry(QtCore.QRect(150, 80, 61, 20))
        self.txtYear.setInputMethodHints(QtCore.Qt.ImhDigitsOnly)
        self.txtYear.setObjectName("txtYear")
        self.label_3 = QtWidgets.QLabel(self.Main)
        self.label_3.setGeometry(QtCore.QRect(10, 80, 111, 16))
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(self.Main)
        self.label_4.setGeometry(QtCore.QRect(90, 20, 51, 16))
        self.label_4.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.label_4.setObjectName("label_4")
        self.label_5 = QtWidgets.QLabel(self.Main)
        self.label_5.setGeometry(QtCore.QRect(90, 50, 51, 16))
        self.label_5.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.label_5.setObjectName("label_5")
        self.label_6 = QtWidgets.QLabel(self.Main)
        self.label_6.setGeometry(QtCore.QRect(90, 80, 51, 16))
        self.label_6.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.label_6.setObjectName("label_6")
        self.txtPlace = QtWidgets.QLineEdit(self.Main)
        self.txtPlace.setGeometry(QtCore.QRect(150, 110, 61, 20))
        self.txtPlace.setInputMethodHints(QtCore.Qt.ImhDigitsOnly)
        self.txtPlace.setReadOnly(True)
        self.txtPlace.setObjectName("txtPlace")
        self.label_7 = QtWidgets.QLabel(self.Main)
        self.label_7.setGeometry(QtCore.QRect(10, 110, 111, 16))
        self.label_7.setObjectName("label_7")
        self.label_8 = QtWidgets.QLabel(self.Main)
        self.label_8.setGeometry(QtCore.QRect(90, 110, 51, 16))
        self.label_8.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.label_8.setObjectName("label_8")
        self.btnAddNewPipe = QtWidgets.QPushButton(self.Details)
        self.btnAddNewPipe.setGeometry(QtCore.QRect(230, 170, 75, 23))
        self.btnAddNewPipe.setObjectName("btnAddNew")

        self.retranslateUi(Dialog)
        QtCore.QMetaObject.connectSlotsByName(Dialog)
        Dialog.setTabOrder(self.txtWeight, self.txtName)
        Dialog.setTabOrder(self.txtName, self.txtPlace)
        Dialog.setTabOrder(self.txtPlace, self.txtYear)

    def retranslateUi(self, Dialog):
        _translate = QtCore.QCoreApplication.translate
        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
        self.Details.setTitle(_translate("Dialog", "Details"))
        self.Main.setTitle(_translate("Dialog", "Test"))
        self.label.setText(_translate("Dialog", "Name"))
        self.label_2.setText(_translate("Dialog", "Weight"))
        self.label_3.setText(_translate("Dialog", "Year"))
        self.label_4.setText(_translate("Dialog", "[-]"))
        self.label_5.setText(_translate("Dialog", "[kg]"))
        self.label_6.setText(_translate("Dialog", "[-]"))
        self.label_7.setText(_translate("Dialog", "Place"))
        self.label_8.setText(_translate("Dialog", "[-]"))
        self.btnAddNewPipe.setText(_translate("Dialog", "Add new"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Dialog = QtWidgets.QDialog()
    ui = Ui_Dialog()
    ui.setupUi(Dialog)
    Dialog.show()
    sys.exit(app.exec_())

Can you help me further?