Kevin Peterson <qh.res...@gmail.com> writes: > I want to use the stdout of child process as an input of another thread, but > some how I am not able to read the stdout. Using Popen I have created a > child process and stdout of it I have redirected to PIPE (because I don't > want that to be printed on with my main process). Now using this > statement,"Line=Proc.stdout.readline()" I want to read stdout of child > process and I have to do operation on that. but somehow i am not able to read > from stdout of child process. > > Following is the code snapshot - > > Proc = Popen(["python.exe","filename.py"],stdout=PIPE) > > while True: > Line = Proc.stdout.readline() > print Line > > Here, > Filename.py(Child process) is continuously printing "Hello World!!" in place > of reading stdout of child process.
Your description is not sufficiently clear: If "filename.py" is your child process, why should it read the stdout of the child process (i.e. itself). I suggest, you describe what "filename.py" (your child) does and what behavior you observe for the parent. -- https://mail.python.org/mailman/listinfo/python-list