Python-сообщество

import pysvn
import datetime
from time import sleep
from multiprocessing import Process, Queue, Manager
from threading import Thread


class ExportSVN(object):

    def __init__(self, url):
        self.client = pysvn.Client()
        self.url = url
        self.qq = Queue()
        self.revision = None

    def do_export(self):
        print "Exporting {url}".format(url=self.url)
        self.client.callback_notify = self.notify_export
        revision = self.client.export(self.url, r'D:\tezt', force=True).number
        self.revision = revision
        #print "\nExported at {rev}".format(rev=revision)
        
    def notify_export(self, event_dict):  
        data = "{action} -> {path}".format(action=event_dict.get('action'), path=event_dict.get('path'))    
        self.qq.put(data)        
        #print data    
        
    def infinit_gena(self):    
        print " *** thread gena started ***"
        
        t = Thread(target=self.do_export,)
        t.start()
        
        while True:        
            sleep(0.1)
            data = self.qq.get()
            yield data            
            if not t.isAlive(): 
                yield self.revision
                break        

if __name__ == '__main__':
    
    svnex = ExportSVN("svn://vault/folder")
    
    
    for line in svnex.infinit_gena():
        print '{line}'.format(line=line)

    raw_input("\nPress any key to continue")

from multiprocessing import Queue, Process
import random
from time import sleep


qq = Queue()

def fill_the_qq():
    for x in xrange(10):
        print "putting {x} item to queue...".format(x=x)
        qq.put(x)
        sleep(0.3)
    qq.put('STOP')

def generator_func():    
    print("*** generator_func started ***")    
    while True:
        item = qq.get()
        if item == 'STOP':
            print "empty :("
            break
        yield item

"""
def generator_func():    
    print("*** generator_func started ***")    
    while not qq.empty():
        item = qq.get()
        yield item
    else:
        print "empty :("
"""    

if __name__ == '__main__':
    
    p = Process(target=fill_the_qq)
    p.start()
    #p.join()
    
    print("loop started")
    for line in generator_func():
        print line
    print("loop ended")
    
    raw_input("Press any key to continue\n")

[guest@localhost tests]$ python t.py
loop started
*** generator_func started ***
putting 0 item to queue...
0
putting 1 item to queue...
1
putting 2 item to queue...
2
putting 3 item to queue...
3
putting 4 item to queue...
4
putting 5 item to queue...
5
putting 6 item to queue...
6
putting 7 item to queue...
7
putting 8 item to queue...
8
putting 9 item to queue...
9
empty :(
loop ended
Press any key to continue

[guest@localhost tests]$