问题
Possible Duplicates:
How to flush output of Python print?
unbuffered stdout in python (as in python -u) from within the program
I have the following code to flushing out the output buffer.
print 'return 1'
sys.stdout.flush()
Can I setup the print function so that it automatically flushes the buffer when it's called?
回答1:
You can start python in unbuffered mode using the -u flag, e.g.
python -u script.py
or
#!/usr/bin/env python -u
as "shebang" header for your script.
来源：https://stackoverflow.com/questions/3895481/pythons-print-function-that-flushes-the-buffer-when-its-called