1. Environment

Win10 (64bit), python 3.6.7, VS code 1.46.1 (installed with Anaconda). It is assumed that the basic environment is set up and tested.

 

2. Download pyqt5

Run the following statement in Anaconda Prompt

pip install pyqt5-tools -i https://pypi.douban.com/simple/

After the installation is complete, the following interface is displayed

Do not run in cmd, otherwise you need to configure environment variables yourself

-i https://pypi.douban.com/simple/ is to change the source, the original download address downloads super slow.

pyqt5 is a dependency of pyqt5-tools, so there is no need to install it separately with pip pyqt5.

3. Install the PYQT Integration extension in VS Code

Open VS Code, find PYQT Integration in Extensions and install it

4. Configure PYQT Integration in VS Code

After the installation is complete, right-click and select Extension Settings, and set the path of pyuic5.exe and designer.exe. The path in the screenshot is for reference.

5. Create UI in Designer

Create a new blank .py file (named main.py for the convenience of subsequent description), right-click and select New Form to invoke the designer designer. Create a new Main Window. Drag and drop the Label control, write Hello World and save it (named as main.ui for subsequent descriptions). It needs to be in the same directory as main.py.

        

6. Compile main.ui in VS Code

Go back to VS Code and find that there is more main.ui file in the working directory, right click and select PYQT: Compile Form to generate Ui_main.py file. (If there is no designer, this file is the interface file that requires pure handwriting). Here we only need to care about the class name.

    

7. Testing

Go back to the blank file main.py at the beginning, write the following code and run it. When the following interface appears, the construction is complete. Pay attention to the file name and class name in the red box. To

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow

import Ui_main

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

 

appendix:

Step 5 If the following error occurs when opening the Designer:

This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. 

It can be solved as follows:

Copy all the files in the following directory (theoretically there should be 4)

Replace and paste into the following directory