可以创建多个线程来处理python中的多个任务吗？

Question

可以创建一个线程来保持队列中填充源文件text.txt中的行，以及当tagreset值等于tagdict的大小时，同时将结果写入输出文件tagfile.csv ？

tagdict = {}
tagreset = 10

with open('text.txt') as f:
    for line in f:
        if (len(tagdict) == tagreset):
            tagfile = open("tagfile.csv","a")
            for key in tagdict:
                tagstring = ':' + (int(tagdict[key])-1) + '"\n"' + key + '","' + tagdict[key]
                tagfile.write(tagstring)
                tagfile.close()
                tagdict = {}
        q.put(line)

def worker(queue):
    mutex.acquire()
    try:
        queue_full = True
        while queue_full:
        try:
            for match in re.finditer('\<tag\>(.*?)\<\/tag\>',line):
                try:
                    tagdict[match.group(0)] = match.start()
                except:
                    print "no title matches found"
        except Queue.Empty:
            queue_full = False
    finally:
        mutex.release()
thread_count = 5
for i in range(thread_count):
    t = Thread(target=worker, args = (q,))
    t.start()