QObject类型判定

import sys
from PySide2 import QtWidgets as qtw
from PySide2 import QtCore as qtc

app = qtw.QApplication()

obj = qtc.QObject()
widget = qtw.QWidget()
btn = qtw.QPushButton()
label = qtw.QLabel()

items = [obj, widget, btn, label]

for item in items:

    print('============================')
    # 判断对象是否为控件（widget）类型
    print('是否为控件：', item.isWidgetType())
    # inherits包含了直接继承和间接继承
    # inherts接收的参数为类名，如下所示：
    print('是否继承自QWidget：', item.inherits('QWidget'))
    print('是否继承自QPushButton：', item.inherits('QPushButton'))
    print('============================')

sys.exit(app.exec_())