the answer is to pickle first. "dsavitsk" <dsavitsk at e-coli.net> wrote in message news:X0sm8.575$d7.169869 at newssrv26.news.prodigy.com... > when writing and reading from a pipe, is it okay to do something like ... > > >>> t = (0, 1, 2, 3) > >>> r = win32pipe.CallNamedPipe(pipename, t, 512, 0) > > of should i pickle t first? > > -d > >