PySide6直接载入UI文件实现界面和代码分离

 直接载入，无需再生成相应的py文件。

 参考：Using .ui files from Designer or QtCreator with QUiLoader and pyside6-uic — Qt for Python

入口文件 simpleApp.py 

from MainWindow import Window
from PySide6.QtWidgets import QApplication
from PySide6.QtGui import QIcon

if __name__ == '__main__':
    app = QApplication([])
    app.setWindowIcon(QIcon("logo.png"))    # 添加图标
    w = Window()
    w.ui.show()
    #w.win.show()
    app.exec()

界面控件属性设置文件 MainWindow.py

import sys
from PySide6.QtGui import QScreen
from PySide6.QtCore import QFile
from PySide6.QtUiTools import QUiLoader
from PySide6.QtWidgets import QApplication, QButtonGroup, QLabel, QMessageBox

class Window:
    def __init__(self):
        super(Window, self).__init__()
        # 从ui文件中加载UI定义
        qfile = QFile("mainPage.ui")
        qfile.open(QFile.ReadOnly)
        qfile.close()
        # 从UI定义中动态创建一个相应的窗口对象
        self.ui = QUiLoader().load(qfile)
        
        if not self.ui:
            print(QUiLoader().errorString())
            sys.exit(-1)

        self.center()

        # 信号处理
        self.ui.pushButton.clicked.connect(self.btnClick)
        # self.button.clicked.connect(self.btnClick)

    def btnClick(self):
        info = self.ui.textEdit.toPlainText()   # 获取文本信息
        # info = self.textEdit.toPlainText()
        print(info)
        # self.appLabel = QLabel()
        # self.appLabel.setAlignment(Qt.AlignCenter)
        # self.appLabel.alignment = Qt.AlignCenter
        # self.appLabel.setText(info)
        # self.appLabel.setWindowTitle(info)
        # self.appLabel.setGeometry(300, 300, 250, 175)
        # self.ui.setWindowTitle(info)
        # # 显示这个Label
        # self.appLabel.show()
        self.msgbox = QMessageBox()
        msgBox = self.msgbox
        msgBox.setText(info)
        # msgBox.setStandardButtons(QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel)
        # msgBox.setDefaultButton(QMessageBox.Save)
        msgBox.setStandardButtons(QMessageBox.Ok | QMessageBox.Discard | QMessageBox.Cancel)
        msgBox.setIcon(QMessageBox.Information)
        msgBox.setDetailedText("Information:"
        "
sdfsdfaaa"
        "
Testsertsetsetse")
        msgBox.setInformativeText("sdfsdfasssssss")
        # msgBox.show()

        # MessageBox = QMessageBox()
        # Ret = MessageBox.question(self.ui, "标题", "内容")     #Critical对话框
        # print(Ret)
        
        self.msgbox2 = QMessageBox()
        msgBox2 = self.msgbox2
        connectButton = msgBox2.addButton("Connect", QMessageBox.ActionRole)
        disconnectButton = msgBox2.addButton("DisConnect", QMessageBox.ActionRole)
        
        msgBox.setText(info)
        msgBox2.setIcon(QMessageBox.Information)
        msgBox2.exec()
        if msgBox2.clickedButton() == connectButton:
            self.ui.textEdit.append("Connect clicked!")
            print("Connect pass")
        elif msgBox2.clickedButton() == disconnectButton:
            self.ui.textEdit.append("DisConnect clicked!")
            print("DisConnect pass")


    def center(self):
        #Get Screen geometry
        SrcSize = QScreen.availableGeometry(QApplication.primaryScreen())
        #Set X Position Center
        frmX = (SrcSize.width() - self.ui.width())/2
        #Set Y Position Center
        frmY = (SrcSize.height() - self.ui.height())/2
        #Set Form's Center Location
        self.ui.move(frmX, frmY)

界面UI文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>800</width>
    <height>600</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QGroupBox" name="groupBox">
    <property name="geometry">
     <rect>
      <x>40</x>
      <y>10</y>
      <width>431</width>
      <height>451</height>
     </rect>
    </property>
    <property name="title">
     <string>GroupBox</string>
    </property>
    <widget class="QRadioButton" name="radioButton">
     <property name="geometry">
      <rect>
       <x>40</x>
       <y>80</y>
       <width>95</width>
       <height>20</height>
      </rect>
     </property>
     <property name="text">
      <string>RadioButton</string>
     </property>
    </widget>
    <widget class="QCheckBox" name="checkBox">
     <property name="geometry">
      <rect>
       <x>40</x>
       <y>20</y>
       <width>81</width>
       <height>20</height>
      </rect>
     </property>
     <property name="text">
      <string>CheckBox</string>
     </property>
    </widget>
    <widget class="QTabWidget" name="tabWidget">
     <property name="geometry">
      <rect>
       <x>40</x>
       <y>110</y>
       <width>351</width>
       <height>261</height>
      </rect>
     </property>
     <property name="currentIndex">
      <number>0</number>
     </property>
     <widget class="QWidget" name="tab">
      <attribute name="title">
       <string>Tab 1</string>
      </attribute>
      <widget class="QTextEdit" name="textEdit">
       <property name="geometry">
        <rect>
         <x>10</x>
         <y>30</y>
         <width>331</width>
         <height>191</height>
        </rect>
       </property>
      </widget>
     </widget>
     <widget class="QWidget" name="tab_2">
      <attribute name="title">
       <string>Tab 2</string>
      </attribute>
     </widget>
    </widget>
    <widget class="QPushButton" name="pushButton">
     <property name="geometry">
      <rect>
       <x>330</x>
       <y>410</y>
       <width>93</width>
       <height>28</height>
      </rect>
     </property>
     <property name="text">
      <string>PushButton</string>
     </property>
    </widget>
    <widget class="QRadioButton" name="radioButton_2">
     <property name="geometry">
      <rect>
       <x>40</x>
       <y>50</y>
       <width>95</width>
       <height>20</height>
      </rect>
     </property>
     <property name="text">
      <string>RadioButton</string>
     </property>
    </widget>
   </widget>
   <widget class="QToolBox" name="toolBox">
    <property name="geometry">
     <rect>
      <x>480</x>
      <y>20</y>
      <width>291</width>
      <height>201</height>
     </rect>
    </property>
    <property name="currentIndex">
     <number>1</number>
    </property>
    <widget class="QWidget" name="page">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>0</y>
       <width>291</width>
       <height>141</height>
      </rect>
     </property>
     <attribute name="label">
      <string>Page 1</string>
     </attribute>
    </widget>
    <widget class="QWidget" name="page_2">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>0</y>
       <width>291</width>
       <height>141</height>
      </rect>
     </property>
     <attribute name="label">
      <string>Page 2</string>
     </attribute>
    </widget>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>800</width>
     <height>22</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuMenu">
    <property name="title">
     <string>File</string>
    </property>
    <addaction name="actionOpen"/>
    <addaction name="actionSave"/>
    <addaction name="actionClose"/>
   </widget>
   <widget class="QMenu" name="menuEdit">
    <property name="title">
     <string>Edit</string>
    </property>
    <addaction name="actionSettings"/>
    <addaction name="actionReload"/>
   </widget>
   <addaction name="menuMenu"/>
   <addaction name="menuEdit"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <action name="actionOpen">
   <property name="text">
    <string>Open</string>
   </property>
  </action>
  <action name="actionSave">
   <property name="text">
    <string>Save</string>
   </property>
  </action>
  <action name="actionClose">
   <property name="text">
    <string>Close</string>
   </property>
  </action>
  <action name="actionSettings">
   <property name="text">
    <string>Settings</string>
   </property>
  </action>
  <action name="actionReload">
   <property name="text">
    <string>Reload</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>

打包部署，将所有依赖的DLL文件整理到exe文件同一目录：

实现dll文件整理到distlib文件夹下（试了一下功能未实现，仅做记录，寻找解决方案，如有解决方案的朋友请不吝赐教）:

调用命令，结束后需要拷贝相应的UI文件到生成的目录：

以下文件用于扩展相关功能，但是入口文件中会用到，需要 更新 simpleApp.py：

from MainWindow import Window
from qt import QApplication, QIcon, _exec

if __name__ == '__main__':
    app = QApplication([])
    app.setWindowIcon(QIcon("logo.png"))    # 添加图标
    w = Window()
    w.ui.show()
    #w.win.show()
    _exec(app)

PyQt6和PySide6兼容设置 qt.py：

import sys

if 'PyQt6' in sys.modules:
    # PyQt6
    from PyQt6 import QtGui, QtWidgets, QtCore
    from PyQt6.QtCore import pyqtSignal as Signal, pyqtSlot as Slot


else:
    # PySide6
    from PySide6 import QtGui, QtWidgets, QtCore
    from PySide6.QtCore import Signal, Slot
    
    from PySide6.QtWidgets import QApplication
    from PySide6.QtGui import QIcon
    

def _enum(obj, name):
    parent, child = name.split('.')
    result = getattr(obj, child, False)
    if result:  # Found using short name only.
        return result

    obj = getattr(obj, parent)  # Get parent, then child.
    return getattr(obj, child)


def _exec(obj):
    if hasattr(obj, 'exec'):
        return obj.exec()
    else:
        return obj.exec_()