print .blend filenames inside directory

directory_printer.py

import bpy
import os
from os.path import join



def source_list(path, filename_check=None):
    
    for dirpath, dirnames, filenames in os.walk(path):
        # skip '.svn'
        if dirpath.startswith("."):
            continue

        for filename in filenames:
            filepath = join(dirpath, filename)
            if filename_check is None or filename_check(filepath):
                yield filepath

path_to_files = bpy.utils.script_paths()[0]
DIR = join(path_to_files, 'addons_contrib', 'io_material_loader')

source_files = []
source_files.extend(source_list(DIR, filename_check=lambda f: f.endswith(".blend")))


print("-"*40)
for i, filepath in enumerate(source_files):
    
    # i want to print only the filename
    file_name = filepath.split(os.sep)[-1]
    print(file_name)

    #print("TEST:", filepath, i, "of", len(source_files))
    #with bpy.data.libraries.load(filepath) as (data_from, data_to):
    #    if data_from.masks:
    #        print("FOUND:", filepath)