gistfile1.py

#!/usr/bin/env python

import zipfile
from lxml import etree

def fb_info(fb):
    xml = etree.XML(fb)
    NODE = lambda n:xml.xpath('/fb:FictionBook/fb:description/fb:title-info/fb:'+n, namespaces={'fb':'http://www.gribuser.ru/xml/fictionbook/2.0'}) 
    T = lambda n:n[0].text if len(n)>0 else ''
    return {
        'title': T(NODE('book-title')),
        'genres': [g.text for g in NODE('genre') if g.text != None],
        'author': (T(NODE('author/fb:first-name')), T(NODE('author/fb:last-name'))),
    }

def read_zip(fn):
    zip = zipfile.ZipFile(fn)
    l = []
    for n in [i.filename for i in zip.infolist()]:
        fb = zip.read(n)
        print "%s..." % (n,)
        l.append(fb_info(fb))
    return l

def calculate(func, fn, z):
    print "%s..." % (fn,)
    d = z.read(fn)
    return func(d)

def read_zip_mp(fn):
    import multiprocessing
    zip = zipfile.ZipFile(fn)
    l = []
    wk = [(fb_info, i.filename, zip) for i in zip.infolist()]
    pool = multiprocessing.Pool(4)
    results = [pool.apply(calculate, t) for t in wk]
    print results
    return l