First-order hack at finding dead python code (unimported python files)

unimported.py

import os
import re
from pprint import pprint


def import_from_path(path):
    try:
        path, file_extension = path.split('.')
        _, karmic_path = path.split(os.getcwd())
        return re.sub('/', '.', karmic_path)
    except Exception as e:
        print(path)


def is_python_file(path):
    split = path.split('.')
    return len(split) == 2 and split[1] == 'py'


def collect_imports():
    imports = []
    for (dirpath, dirnames, filenames) in os.walk(os.getcwd()):
        _imports = [import_from_path(dirpath + '/' + filename)
                    for filename in filenames
                    if is_python_file(filename)]
        imports.extend(_imports)
    return imports


def collect_files():
    files = []
    for (dirpath, dirnames, filenames) in os.walk(os.getcwd()):
        _imports = [dirpath + '/' + filename
                    for filename in filenames
                    if is_python_file(filename)]
        files.extend(_imports)
    return files


def read_lines_in_project():
    lines = []
    for (dirpath, dirnames, filenames) in os.walk(os.getcwd()):
        for filename in filenames:
            if is_python_file(filename):
                with open(dirpath + '/' + filename, 'r') as f:
                    lines.extend(f.readlines())
    return lines


def unused_imports(imports, lines):
    imports = set(i for i in imports if type(i) == str)
    lines = set(l for l in lines if type(l) == str)
    unused_imports = imports.copy()
    for line in lines:
        for import_ in imports:
            if import_ in line:
                if import_ in unused_imports:
                    unused_imports.remove(import_)
    return unused_imports

def main():
    return unused_imports(collect_imports(), collect_files())

if __name__ == '__main__':
    pprint(sorted(main()))