File Metrics for Python

This document outlines the definition of file metrics for Python.

complexity

The "complexity" metric counts:

if and elif statements
ternary operators
for, for...else, while and while...else loops
case labels in match-statements and their guards, but not case _:
except clauses in try-statements
logical binary operations and and or
everything counted for the "functions" metric

It does not count:

function calls, e.g. map() built-in function

functions

The "functions" metric counts:

general functions
method definitions in classes incl. static methods, class methods and constructors
lambda functions

It does not count:

function definitions in exec() function calls

classes

The "classes" metric counts:

class definitions using class-keyword

lines_of_code, comment_lines, real_lines_of_code and keywords_in_comments