Start the thread

thread.start()

Running the Python Application

To run the Python application, follow these steps:

Ensure you have Python installed on your system. If not, download and install Python from here.
Install the required Python libraries by running the following command in your terminal or command prompt:
```
pip install tkinter pillow tkhtmlview
```
Save the Python code provided in a file with a .py extension, for example, drawing_app.py.
Run the Python file by executing the following command in your terminal or command prompt:
```
python drawing_app.py
```
The application window should now open, allowing you to interact with it.