pycharm installation using pyQt5

1. Create a project

2. Install the pyqt5 library

3. Configure PyCharm external tools

打开File->settings->Tools->External Tools

1. Configure QtDesigner

程序：D:\python3.7\Lib\site-packages\qt5_applications\Qt\bin\designer.exe//安装包的时候回自动下载，直接在包文件夹中找
工作目录：$FileDir$

2. Configure PyUic

程序：D:\python3.7\python.exe//工具自己配置填写
实参：-m PyQt5.uic.pyuic $FileName$ -o $FileNameWithoutExtension$.py
工作目录：$FileDir$

3. Click Apply

4. Use tools

1. Open designer

Tools->External Tools->QtDesigner

2. Place controls

Save it and an untitled.ui file will be generated in the project

3. Generate py file

At this time, you need to convert the untitled.ui file to a .py file, which is convenient for pycharm to view. Right-click and select External Tools, select pyuic, and convert it. After conversion, you can see untitled.py on the left

4. Display the generated py file

The generated file cannot be displayed and needs to be called

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName("gridLayout")
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.widget = QtWidgets.QWidget(self.centralwidget)
        self.widget.setObjectName("widget")
        self.horizontalLayout.addWidget(self.widget)
        self.widget_2 = QtWidgets.QWidget(self.centralwidget)
        self.widget_2.setObjectName("widget_2")
        self.comboBox = QtWidgets.QComboBox(self.widget_2)
        self.comboBox.setGeometry(QtCore.QRect(330, 30, 171, 22))
        self.comboBox.setObjectName("comboBox")
        self.comboBox_2 = QtWidgets.QComboBox(self.widget_2)
        self.comboBox_2.setGeometry(QtCore.QRect(330, 60, 171, 22))
        self.comboBox_2.setObjectName("comboBox_2")
        self.comboBox_3 = QtWidgets.QComboBox(self.widget_2)
        self.comboBox_3.setGeometry(QtCore.QRect(330, 90, 171, 22))
        self.comboBox_3.setObjectName("comboBox_3")
        self.label = QtWidgets.QLabel(self.widget_2)
        self.label.setGeometry(QtCore.QRect(260, 40, 54, 12))
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.widget_2)
        self.label_2.setGeometry(QtCore.QRect(260, 70, 54, 12))
        self.label_2.setObjectName("label_2")
        self.label_3 = QtWidgets.QLabel(self.widget_2)
        self.label_3.setGeometry(QtCore.QRect(260, 100, 54, 12))
        self.label_3.setObjectName("label_3")
        self.horizontalLayout.addWidget(self.widget_2)
        self.horizontalLayout.setStretch(0, 1)
        self.horizontalLayout.setStretch(1, 2)
        self.gridLayout.addLayout(self.horizontalLayout, 0, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label.setText(_translate("MainWindow", "TextLabel"))
        self.label_2.setText(_translate("MainWindow", "TextLabel"))
        self.label_3.setText(_translate("MainWindow", "TextLabel"))

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    mainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()  # 这个是类名，名字根据自定义的情况变化
    ui.setupUi(mainWindow)
    mainWindow.show()
    sys.exit(app.exec_())

5. Effect display