What is your experience in testing Python programs in terms of duration and volume?

In my experience testing software in Python, project durations ranged from a few weeks to several months. The tested code volumes included both small scripts (up to a few hundred lines) and larger modules and services (several thousand lines of code).

I have written unit tests using unittest and pytest, as well as performed integration testing. In some projects, I automated testing using CI/CD systems, which allowed tests to run on each commit and ensured code stability.