您想使用Queue（现在是python 3的队列）类来设置一个队列，您的虚拟线程将使用函数填充该队列，而主线程会使用该队列。
import Queue
#somewhere accessible to both:
callback_queue = Queue.Queue()
def from_dummy_thread(func_to_call_from_main_thread):
callback_queue.put(func_to_call_from_main_thread)
def from_main_thread_blocking():
callback = callback_queue.get() #blocks until an item is available
callback()
def from_main_thread_nonblocking():
while True:
try:
callback = callback_queue.get(False) #doesn't block
except Queue.Empty: #raised when queue is empty
break
callback()
演示：
import threading
import time
def print_num(dummyid, n):
print "From %s: %d" % (dummyid, n)
def dummy_run(dummyid):
for i in xrange(5):
from_dummy_thread(lambda: print_num(dummyid, i))
time.sleep(0.5)
threading.Thread(target=dummy_run, args=("a",)).start()
threading.Thread(target=dummy_run, args=("b",)).start()
while True:
from_main_thread_blocking()
印刷品：
From a: 0
From b: 0
From a: 1
From b: 1
From b: 2
From a: 2
From b: 3
From a: 3
From b: 4
From a: 4
然后永远封锁
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