I don't see any code being improved in this article. The author does the same thing I've noticed Clean Code adherents do: he focuses on the busywork of splitting functions into tiny pieces while missing the actual place that requires the most mental effort to understand and is the most likely to become a source of bugs. In this case, it's the complex boolean expression that relies on Python's operator precedence. It could be rewritten like so:
if (
(
has_passed_probation(employee)
and is_paid_monthly(employee)
and is_end_of_month
) or (
is_paid_weekly(employee)
and is_end_of_week
)
):
to make it clearer that the has_passed_probation check only applies in the monthly case.
