Why does bufsize=1 not work in subprocess.Popen ?
- From: "I. Myself" <No.Spam@xxxxxxxxx>
- Date: Sat, 29 Apr 2006 21:44:21 GMT
I read in the docs that "bufsize=1" causes line buffering. (for subprocess.Popen)
The following tiny program launches an executable file and then receives its output. That works, but I want to
receive each line as it is ouput, not all of the lines at termination, which is what is happening.
-------------------------------------------------------
from subprocess import Popen, PIPE
from os import remove, sep
p = Popen("." + sep + "myprogram", stdout=PIPE, bufsize=1)
while(1):
line = p.stdout.readline() # get next line
print line,
if line.count("terminator"):
break
------------------------------------------------------
How can I get line buffering?
Mitchell Timin
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