import os


def list_all_files(path):
    file_list = []
    for item in os.walk(path):
        for file in item[2]:
            file_list.append(item[0] + file)
    return file_list


def scan_path_length(path, threshold=180):
    file_path_list = list_all_files(path)
    result_list = []
    for file in file_path_list:
        if len(file) >= threshold:
            result_list.append(file)
    return result_list


if __name__ == '__main__':
    path = r'H:\Mass Storage Drive\classified documents'
    target = scan_path_length(path)
    print('done')