Re: multiprocessing module in async db query

Hi Philip, multiprocessing.Queue is used to transfer data between processes, how it could be helpful for solving my problem? Thanks! Sheng On Mar 8, 6:34 pm, Philip Semanchuk wrote: > On Mar 8, 2011, at 3:25 PM, Sheng wrote: > > > This looks like a tornado problem, but trust me,

multiprocessing module in async db query

This looks like a tornado problem, but trust me, it is almost all about the mechanism of multiprocessing module. I borrowed the idea from http://gist.github.com/312676 to implement an async db query web service using tornado. p = multiprocessing.Pool(4) class QueryHandler(tornado.web.RequestHandl

IDLE python shell freezes after running show() of matplotlib

I am having a weird problem on IDLE. After I plot something using show () of matplotlib, the python shell prompt in IDLE just freezes that I cannot enter anything and there is no new ">>>" prompt show up. I tried ctrl - C and it didn't work. I have to restart IDLE to use it again. My system is Ubu