How to print text to the output window immediately

[S. Wolff]

I would like to run an experiment on screen 2 and view some logging information with subject responses on screen 1 simultaneously.
Using "print" commands I get all output at the end of the experiment.
Even with

from psychopy import logging
logging.console.setLevel(logging.WARNING)
[]
logging.log(level=logging.WARN, msg='test')
logging.flush()

no output appears until the end.
How can I print text to the output window immediately?
I am using PsychoPy 1.80.01 on a laptop with Windows 7.

Thanks in advance,
Stephan

[S. Wolff]

Hi Samarth,

thanks, it works. I can use  the coder view as workaround.

Starting from builder the output window doesn´t show any log during a run even with "sys.stdout.flush()"

Stephan
 
Samarth Varma wrote:

Hi Stephan,

Not sure if it helps but - If I run the code from the coder view, I can see the output (of embedded print commands) as the code runs. 

I'm on 1.79.

Samarth

[Jeremy Gray]

Hi Stephan,

The following will print text to the output window console immediately; it does not also log the message. Watch out for timing issues because printing can be slow if there's a lot of lines to print:

import sys

print "message"

sys.stdout.flush()  # ensure that the message appears now, regardless of print buffering

--Jeremy

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[Samarth Varma]

Hi Stephan,

Not sure if it helps but - If I run the code from the coder view, I can see the output (of embedded print commands) as the code runs. 

I'm on 1.79.

Samarth

[John Allen]

Replying to this old thread as it comes up above Discourse.psychopy.org in google - 

you don't actually need to flush the print buffer - all you need to do is move the mouse cursor over one of the other psychopy windows (either the builder/coder one or the Runner one) as this triggers PP to update the stdout view

cheers,

John