Re: [ovirt-devel] execCmd() and storing stdout and stderr in log file

After https://gerrit.ovirt.org/#/c/46733/ you should be able to create the pipeline in python like this: v2v = Popen(["virt-v2v", ...], stdout=PIPE, stderr=STDOUT) tee = Popen(["tee", "-a", logfile], stdin=v2v.stdout, stdout=PIPE, stderr=PIPE) Now we can read output from tee.stdout, and when tee is finished, we can wait for v2v to get the exit code. Since all output would go to tee stdout and stderr may only contain tee usage errors, we don't need to use AsyncProc, making this code python 3 compatible.