Python: get datetime for '3 years ago today'?
<p>This must be a duplicate (and documented), but I can't find the answer via Google.</p>

<p>In Python, how do I get a datetime object for '3 years ago today'?</p>

<p>Thanks!</p>

<p>UPDATE: FWIW, I don't care hugely about accuracy... i.e. it's Feb 29th today, I don't care whether I'm given Feb 28th or March 1st in my answer. Concision is more important than configurability, in this case.</p>
