Hi, Chris & Marko
Thanks for your reply.
I find the reason why my time.sleep take longer time.
In my script, I use wxPython to build up my GUI, and I open another thread to
do network communications.
It turned out that if you create a wx.Frame & make it show up, then your
time.sleep may sleep longer time than expected.
I will dig deeper for the root cause. Anyway, it's interesting.
Here is a sample code that can reproduce this issue, you need to wait for it to
run for a while.
t = time.time()
print "Actually sleep:", time.time() - t
t1 = threading.Thread(target=sleep)
frame = wx.Frame(None, title="test")