~lines 940 of babel/messages/frontend.py

  extracted = extract_from_dir(dirname, method_map, options_map,
                                         keywords, options.comment_tags,
                                         callback=callback,
                                         strip_comment_tags=
                                            options.strip_comment_tags)
            # I'm hoping to see which takes more time, extracting or writing, in sum.
            # If writing dominates, parallelizing doesn't help. If they're equal, we
            # could see some gains on that half of the process. I'm hoping extracting
            # takes longer so we can have big gains.
            import time
            single_write = time.time()
            total_time_extracting = 0
            total_time_writing = 0
            for filename, lineno, message, comments, context in extracted:
                single_extract = time.time()
                # print "Single extract took: "
                # print single_extract - single_write
                total_time_extracting += single_extract - single_write
                filepath = os.path.normpath(os.path.join(dirname, filename))
                catalog.add(message, None, [(filepath, lineno)],
                            auto_comments=comments, context=context)
                single_write = time.time()
                # print "Single catalog add took: "
                # print single_write - single_extract
                total_time_writing += single_write - single_extract

        print "Total time extracting: "
        print total_time_extracting

        print "Total time writing: "
        print total_time_writing