os.link makes a copy, not a link

[Dan M]

I'm a little bit confused. According to the sources I've looked at on the
net, 
    os.link('file1', 'file2')
should make a hard link from file1 to file2. But what I'm finding is that
it's actually making a copy. Am I forgetting a step or something?

Python 2.3.4 running on CentOS 4.3