How to make stdout works with Parallel Python?

Question

I'm wondering if it is possible to make stdout works with Parallel Python? It's really hard to debug without seeing any print-out.

For example, given the following code snippets:

import pp

def printit(s):
    print s

job_server = pp.Server()
for i in xrange(100):
    job_server.submit(printit, (i,))
job_server.wait()

There is not any print out. Any ideas?

score 1 · Accepted Answer · answered Mar 27 '14 at 16:04

1

Look into using the logging module. Set up your "parent" program to listen on a network port, and have your "jobs" send debug info (using logging) to that port. An example of how to set this up is given here: http://docs.python.org/2/howto/logging-cookbook.html#sending-and-receiving-logging-events-across-a-network

answered Mar 27 '14 at 16:04

bkanuka

Thank you. The similar answer was mentioned in http://stackoverflow.com/questions/15096090/python-separate-processes-logging-to-same-file. – Drake Guan Mar 29 '14 at 16:33

1 Answers1