Library for Display missing

[torstenandrecht]

when I execute python all-in-one.py I get the following error message:

Traceback (most recent call last):
File "/home/andrecht/enviroplus-python/examples/all-in-one.py", line 20, in
from PIL import Image, ImageDraw, ImageFont
ModuleNotFoundError: No module named 'PIL'

Solution:
pip install Pillow

Source:
https://stackoverflow.com/questions/8863917/importerror-no-module-named-pil

[slokhorst]

Same issue here. I also had to apt install libopenblas0 on Raspberry Pi OS Lite Bookwork 32-bit to get the display to work.

[arijitsadhu]

pip install Pillow failed to build the wheel, giving the error:
"RequiredDependencyException:
The headers or library files could not be found for jpeg,
a required dependency when compiling Pillow from source."

So following the link installed directly from apt:
sudo apt install python3-pil

[gilbertfrancois]

I saw the same issue. The easiest way to fix it is to install both numpy and pillow system wide with apt. Then the required C libraries are included and the 2 python packages are also available in the virtual environment.

sudo apt install python3-numpy python3-pil

However, in my case, the display still stays blank, without returning an error. I'll make a new issue for that.