New submission from Luís Pedro Coelho:
from os import *
def Fork():
b = fork()
if b < 0:
raise Exception('fork() failed')
return b
r,w=pipe()
b = Fork()
if b == 0:
dup2(w,1)
close(w)
execlp('echo',\
'echo',\
'Hello world')
else:
for line in fdopen(r):
print 'Read %s' % line
I was expecting this code to print "Read Hello World". Instead, it
hangs forever.
Changing "for line in fdopen(r): print 'Read %s' % line"
to "line=read(r,100); print 'Read %s' % line" makes the program work
as expected. This is what I did on my actual production code, but it
seems funny behaviour on the part of fdopen.
I am running on Ubuntu on PowerPC.
----------
components: Library (Lib)
messages: 55829
nosy: [EMAIL PROTECTED]
severity: normal
status: open
title: fdopen does not work as expected
type: behavior
versions: Python 2.3, Python 2.4, Python 2.5
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1149>
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