[FIXED] PyQt5 from QLineEdit to variable

Issue

I have created a simple PyQt5 User Interface that looks like this:

import sys
from PyQt5.QtWidgets import QApplication, QPushButton, QWidget, QLineEdit

class App(QWidget):

    def __init__(self):
        super().__init__()
        self.title = 'Test'
        self.left = 10
        self.top = 10
        self.width = 400
        self.height = 500
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        # Create textbox
        self.textbox = QLineEdit(self)
        self.textbox.move(20, 100)
        self.textbox.resize(280,40)
                # Create textbox
        self.textbox = QLineEdit(self)
        self.textbox.move(20, 200)
        self.textbox.resize(280,40)

        # Create a button in the window
        self.button = QPushButton('Run', self)
        self.button.move(300, 99)

         # Create a button in the window
        self.button = QPushButton('Run', self)
        self.button.move(300, 199)

        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

What I am trying to do is:

1) The user writes a string in the "textbox".

2) Clicks the run button.

3) The run button pushes the string to another variable (let's say "x='whatevertheuserinputs'", which is stored in another python file.

Can anyone give me any hint on how to approach the problem?

Thanks so much in advance!

Solution

Since you also need the string to be passed to a function in another file, here is how a bare-bones application would be:

MyApp.py:

import sys
from PyQt5.QtWidgets import QApplication, QPushButton, QWidget, QLineEdit
# For passing the string to some function in another file:
from StringStorage import storeString

class App(QWidget):

    def __init__(self):
        super().__init__()
        self.title = 'Test'
        self.left = 10
        self.top = 10
        self.width = 400
        self.height = 500
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        # Create textbox
        self.textbox = QLineEdit(self)
        self.textbox.move(20, 100)
        self.textbox.resize(280,40)

        # Create a button in the window
        self.button = QPushButton('Run', self)
        self.button.move(300, 99)

        # When the 'clicked' signal of the button is emitted, call some function (which acts as a slot):
        self.button.clicked.connect(self.onButtonClicked)

        self.show()

    # Function to pass the entered string along to the function from another file
    def onButtonClicked(self):
        storeString(self.textbox.text())

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

StringStorage.py:

# The text is to be stored in this string
x = ''

def storeString(inString):
    global x
    x = inString
    # Do something with the string
    print(inString)
    return

Answered By - mahesh