# coding: utf-8


import os.path

m_dir2 = r'C:\Users\holodnuk\Desktop\Challenges'
m_dir = r'C:\Users\holodnuk\Desktop'
m_exe = '.deb'

def have_ext(elem, ext='.deb'):
    """
    Test if file retain to extension chosen type
    :param elem:
    :param ext:
    :return:
    """
    if elem.find(ext) > 0:
        return True

def summon_path(tup):
    l_deb = list()
    l_file = tup[2]
    for i in range(len(l_file)):
        if have_ext(l_file[i]):
            ss = str(tup[0])+'\\' + str(tup[2][i])
            l_deb.append(ss)
    return l_deb

def cycle():
    l = list()
    l_res = list()
    for pack in (os.walk(m_dir, topdown=True)):
        # print(pack)
        l.append(pack)
    for i in range(len(l)):
        ll = summon_path(l[i])
        for j in range(len(ll)):
            l_res.append(ll[j])
    return l_res


if __name__ == '__main__':
    l_res = cycle()
    print(l_res)