The pytest framework is a standalone framework that comes as a separate library outside of standardized Python distribution. Before we can start writing tests using the pytest, we need to install pytest. Getting pytest installed is not a big task, and can be done easily by running the following command:

pip install pytest

Now, before we start writing tests for our application, let's first create a new directory named tests under our application directory and at the same level as where our run.py resides, to store these test cases by running the following command:

mkdir -p bugzot/tests

Now, it's time to write our first test with pytest.