Python 配置pyqt5开发环境

1.下载需要的pyqt包

这里是所依赖的包(包含了一些项目中其它的包),可以将下面的包复制到requirement.txt，最后使用pip打包安装这些库，具体方法可以参考Python环境离线下载安装。

altgraph==0.17.4
click==8.1.7
colorama==0.4.6
numpy==1.24.4
opencv-python==4.2.0.34
packaging==23.2
pefile==2023.2.7
Pillow==9.1.0
pyinstaller==5.10.1
pyinstaller-hooks-contrib==2023.10
PyQt5==5.15.0
PyQt5-sip==12.13.0
pyqt5-tools==5.15.0.1.7.3
pytesseract==0.3.9
python-dotenv==1.0.0
pywin32-ctypes==0.2.2
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2.配置qtdesigner.exe和pyuic5

在E:\GItCodes\PingTool\venv\Lib\site-packages\pyqt5_tools\Qt\bin找到designer.exe程序，这时候可能会遇到PyQt5: This application failed to start because it could not find or load the Qt platform plugin这个报错，参考该教程解决。
Program:E:\GItCodes\PingTool\venv\Lib\site-packages\pyqt5_tools\Qt\bin\designer.exe，每个电脑不一样，配置时需注意

Program:E:\GItCodes\PingTool\venv\Scripts\pyuic5.exe
Argument:$FileName$ -o $FileNameWithoutExtension$.py

如何使用生成的py文件

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QFileDialog
from main_ui import Ui_MainWindow


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.setWindowTitle('字符识别')
        self.ui.btnOpenFile.clicked.connect(self.open_file)

    def open_file(self):
        options = QFileDialog.Options()
        file_name, _ = QFileDialog.getOpenFileName(self, "Open File", "",
                                                   "All Files (*);;Text Files (*.txt);;Python Files (*.py)",
                                                   options=options)


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