1.7 Extras

Here are some ideas for you to add to this project.

1.7.1 Static analysis - mypy, flake8

There are several common static analysis tools that are as essential as automated testing:

• mypy checks type annotations to be sure the functions and classes will interact properly.

• flake8 does other syntax checks to make sure the code avoids some of the more common Python mistakes.

• black can be used to check the formatting to make sure it follows the recommended style. The black application can also be used to reformat a new file.

• isort can be used to put a long collection of import statements into a consistent order.

Once the application passes the functional tests in the *.feature files, these additional non-functional tests can be applied. These additional tests are often helpful for spotting more nuanced problems that can make a program difficult to adapt or maintain.

1.7.2 CLI features

The command-language interface permits a single option, the --who option, to provide a...