I've created a python3 application but I'm struggling with the concept of deployment. Namely: First developing inside a virtual python environment and secondly deploying on a target. What are the best practices to follow ? How do you manage extra packages ? Do you deploy on target inside a venv ? Please also add in some pro and cons (or broader explanation ) as I'm a beginner with python.

Python3.9: How do you deploy a python application on a specific target

I've created a python3 application but I'm struggling with the concept of deployment.

Namely: First developing inside a virtual python environment and secondly deploying on a target.

Please also add in some pro and cons (or broader explanation ) as I'm a beginner with python.