Input Text Error With Clinet [Number] PyQt5 Python

MMDRZA 0
Viewed 24

I want to receive a data from the user in my program in the form of a number, but I don't know why it gets an error

    self.InputTotal = QtWidgets.QLineEdit(Form)
    self.InputTotal.setGeometry(QtCore.QRect(60, 20, 141, 31))
    self.InputTotal.setObjectName("InputTotal")
    chkinput = self.InputTotal.text()

Need chkinput just number.

        if int(chkinput) == 0:
            ranger = 1000
        else:
            ranger = chkinput

       for i in range(ranger):
            self.btn_eth.clicked.connect(self.Generator)
pyqt pyqt5 python-3.x python
1 Answers

The issue you are facing is that when you run if int(chkinput) == 0 all it does is check if the chkinput variable cast to an integer equals zero. It doesn't actually convert chkinput value to an integer.

For that you would need to assign the converted value back to the variable name like: chkinput = int(chkinput).

So currently when your chkinput doesn't equal 0, you are assigning a string value to the ranger variable in the else clause which will throw an error when you try to use it as a range.

You should also add some extra error checking as well so you don't run in to even more issues. For example, you can check that the text isn't an empty string, then check if the contents is a number using the .isdigit() method, then if that returns true then you know it is safe to use the int constructor without it throwing an error.

chkinput = self.InputTotal.text()
if len(chkinput) > 0 and chkinput.strip().isdigit():
    chkinput = int(chkinput)
    if chkinput == 0:
        ranger = 1000
    else:
         ranger = chkinput
    for i in range(ranger):
        self.btn_eth.clicked.connect(self.Generator)
userphOc10
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