Error running python basic_pipelines/detection.py on RPi 5

[dancemanUK]

(venv_hailo_rpi5_examples) (base) pi@raspberrypi:/Downloads/hailo-rpi5-examples $ python basic_pipelines/detection.py
Traceback (most recent call last):
File "/home/pi/Downloads/hailo-rpi5-examples/basic_pipelines/detection.py", line 1, in
import gi
ModuleNotFoundError: No module named 'gi'
(venv_hailo_rpi5_examples) (base) pi@raspberrypi:/Downloads/hailo-rpi5-examples $ python --version
Python 3.11.9

[vikashgraja]

Run this command in the terminal
sudo apt-get install graphviz libgraphviz-dev
Then try again