The error you're seeing suggests that the `ANTIALIAS` attribute is not being recognized in `PIL.Image`. This could be due to incorrect import statement, or there might be a problem in your Pillow library installation. First, make sure you are importing the module correctly at the top of your Python file: ```python from PIL import Image ``` Then you should be able to use `Image.ANTIALIAS`. Your resize command should look something like this: ```python img_rescaled = img.resize((width*2, height*2), Image.ANTIALIAS) ``` If the error still persists, you might need to check your installation of the Pillow library. You can do this by testing a few import and attribute checks in Python terminal: ```python import PIL print(PIL.__version__) from PIL import Image print(dir(Image)) ``` The first command will print the version of Pillow you're using, and the second will print all the attributes and methods under `Image`. `ANTIALIAS` should be listed there. If `ANTIALIAS` is not listed, you should consider re-installing Pillow. You can use the following command for uninstallation and reinstallation: ```bash pip uninstall pillow pip install pillow ``` Remember, it's crucial that Python and libraries are up-to-date for everything to work as expected.