Disable output buffering

by

From Magnus Lycka answer on a mailing list:

You can skip buffering for a whole
python process using “python -u”
(or#!/usr/bin/env python -u etc) or by
setting the environment variable
PYTHONUNBUFFERED.

You could also replace sys.stdout with
some other stream like wrapper which
does a flush after every call.

class Unbuffered(object):
   def __init__(self, stream):
       self.stream = stream
   def write(self, data):
       self.stream.write(data)
       self.stream.flush()
   def writelines(self, datas):
       self.stream.writelines(datas)
       self.stream.flush()
   def __getattr__(self, attr):
       return getattr(self.stream, attr)

import sys
sys.stdout = Unbuffered(sys.stdout)
print 'Hello'

More Related Contents:

  1. Redirect stdout to a file in Python?
  2. Can I redirect the stdout into some sort of string buffer?
  3. How to set sys.stdout encoding in Python 3?
  4. How to capture stdout output from a Python function call?
  5. Capture stdout from a script?
  6. catching stdout in realtime from subprocess
  7. logger configuration to log to file and print to stdout
  8. Silence the stdout of a function in Python without trashing sys.stdout and restoring each function call
  9. Displaying subprocess output to stdout and redirecting it
  10. The difference between sys.stdout.write and print?
  11. Redirecting stdout and stderr to a PyQt4 QTextEdit from a secondary thread
  12. Python: How to get stdout after running os.system? [duplicate]
  13. How to disable logging on the standard error stream?
  14. subprocess readline hangs waiting for EOF
  15. Python read from subprocess stdout and stderr separately while preserving order
  16. How to redirect stdout and stderr to logger in Python
  17. Python 2.x – Write binary output to stdout?
  18. Print to the same line and not a new line?
  19. Suppress stdout / stderr print from Python functions
  20. Running powershell script within python script, how to make python print the powershell output while it is running
  21. Get output from a Paramiko SSH exec_command continuously
  22. How to redirect stdout to a Tkinter Text widget
  23. Integer File Descriptor “0” in open()
  24. How can I print multiple things on the same line, one at a time?
  25. remove last STDOUT line in Python
  26. Piping output of subprocess.Popen to files
  27. “subprocess.Popen” – checking for success and errors
  28. How can I capture the stdout output of a child process?
  29. How to make print() output UTF-8 in Python 3.0?
  30. Python subprocess output to stdout

Leave a Comment