fcntl O_NDELAY constant not found in python 2.3 on linux

[Ryan Grow]

Hi,

I'm trying to use fcntl to set an existing file
descriptor to be nonblocking. This contrived example
exhibits the behavior of python that is preventing me
from doing this:

import os, fcntl, FCNTL

file = open("/tmp/testfd.txt", 'w')
fd = file.fileno()
fl = fcntl.fcntl(fd, FCNTL.F_GETFL)
fcntl.fcntl(fd, FCNTL.F_SETFL, fl | FCNTL.O_NDELAY)
print "Made it!"
When I run this in the following environment, it works
fine:

Linux Kernel 2.4.7-10
python 2.1.1
[rgrow@linux01 python]$ /usr/bin/python2.1
../testfcntl.py
Made it!

However, when I run this with either python 2.3.2 or
2.3.3, I get the following output:

[rgrow@linux01 python]$ python ./testfcntl.py

/usr/local/lib/python2.3/FCNTL.py:7:
DeprecationWarning: the FCNTL module is deprecated;
please use fcntl
DeprecationWarning)
Traceback (most recent call last):
File "./testfcntl.py", line 6, in ?
fcntl.fcntl(fd, FCNTL.F_SETFL, fl |
FCNTL.O_NDELAY)
AttributeError: 'module' object has no attribute
'O_NDELAY'
What is the correct way that I should be making this
kind of a call in 2.3 to both avoid the deprecation
warning as well as the attribute error?

Thanks,

Ryan


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