如何将按钮移到pyqt5中的另一帧？

Question

There are two frames contain buttons.

When does click button in Left frame, clicked button move to right frame.

How to move button to another frame in pyqt?

def create_widget(self):

    left_frame = QFrame(self)
    left_frame.setFixedWidth(300)
    left_frame.setFixedHeight(400)
    left_frame.move(0, 0)


    for x in range(10):
        btn = QPushButton('button', left_frame)
        btn.setFixedWidth(50)
        btn.setFixedHeight(20)
        btn.move(5, 0+(30*x))
        btn.clicked.connect(self.click_btn_add)


    right_frame = QFrame(self)
    right_frame.setFixedWidth(300)
    right_frame.setFixedHeight(400)
    right_frame.move(400, 0)


def click_btn_add(self):
    # How to move button to another frame?

Answer 1

The position of a widget is relative to the parent, and that is clear since the buttons have as their parent a self.left_frame and their positions are relative to it. If you want it to move to the other QFrame you just have to set the other parent to the other QFrame with setParent() and make it visible with show() (when changing parent the widget is hidden). To obtain the button in the slot we will use sender() that returns the object that issued the signal, and in this case it is the button. In the following I will make that each time you press the button it will move to the other QFrame :

import sys

from PyQt5.QtWidgets import *

class Widget(QWidget):
    def __init__(self, *args, **kwargs):
        QWidget.__init__(self, *args, **kwargs)
        self.create_widget()

    def create_widget(self):
        self.left_frame = QFrame(self)
        self.left_frame.setFixedSize(300, 400)
        self.left_frame.move(0, 0)

        self.right_frame = QFrame(self)
        self.right_frame.setFixedSize(300, 400)
        self.right_frame.move(400, 0)

        for x in range(10):
            btn = QPushButton('button', self.left_frame)
            btn.setFixedSize(50, 20)
            btn.move(5, 30*x)
            btn.clicked.connect(self.click_btn_add)

    def click_btn_add(self):
        btn = self.sender()
        new_parent = self.right_frame if btn.parent() == self.left_frame else self.left_frame
        btn.setParent(new_parent)
        btn.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = Widget()
    w.show()
    sys.exit(app.exec_())