Get uncompressed size of all zip files inside a directory

calc_uncomp_size.py

# encoding: utf-8
from __future__ import unicode_literals
import os
import zipfile


def is_zip_file(path):
    return os.path.isfile(path) and zipfile.is_zipfile(path)


def list_zip_files(dir_path):
    return filter(is_zip_file, os.listdir(dir_path))


def get_uncompressed_size(path):
    if os.path.isdir(path):
        return sum(map(get_uncompressed_size, list_zip_files(path)))

    archive = zipfile.ZipFile(path)
    return sum([info.file_size for info in archive.infolist()])


print get_uncompressed_size('.')