Pyqt5 loop over class variables and change state/set values

Question

I have a class with certain number of class variable. Variables are of different types e.g. QLineEdit/QCheckbox....etc. How can I loop over class variable to set a variable value as below:

obj   = FindObj()
value = ['100', 'yes', 'False']
i=0 
for variable in obj:
    if variable.__class__() == 'QLineEdit': # Don't know if it's right
        variable.setText(value[i])
        i=i+1
    elif variable.__class__() == 'QCheckBox':
        variable.setChecked(value[i])
        i=i+1

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QIcon


class FindObj():

    def __init__(self):
        super().__init__()

        self.l1 = QLineEdit()
        self.l2 = QLineEdit()
        self.l3 = QCheckBox()

if __name__ == '__main__':

    app = QApplication(sys.argv)
    ex = FindObj()
    sys.exit(app.exec_())

quamrana · Accepted Answer · 2020-01-05 18:28:54Z

1

If you put your variables in a list as well, you can loop over both lists:

class FindObj():

    def __init__(self):

        self.l1 = QLineEdit()
        self.l2 = QLineEdit()
        self.l3 = QCheckBox()

        self.variables = [self.l1, self.l2, self.l3]

Now you can loop over them:

obj   = FindObj()
values = ['100', 'yes', 'False']
for variable, value in zip(obj.variables, values):
    if variable.__class__.__name__ == 'QLineEdit': 
        variable.setText(value)
    elif variable.__class__.__name__ == 'QCheckBox':
        variable.setChecked(value)

answered Jan 5, 2020 at 18:28

quamrana

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