title: Application performance metrics for Python
body: <p>We're writing a Python web-application, where we'd like to know general-ballpark-figures about what our users are doing.</p>
  
  <p>As an example, we have a bunch of legacy-modes for setting the used locale; url-parameter, using different cookies in different formats, <code>Accpet-Language</code>-headers &amp;c. We would really like to measure this in some way (but logging it is simply too much data).</p>
  
  <p>I've tried looking for libraries like <a href="https://github.com/mikejihbe/metrics" rel="nofollow">Metrics for Node.js</a>, but I can't seem to find anything for Python. Right now, I think we can make do with a bunch of UNIX-load-like counters. (But more is always better, right?)</p>
  
  <p>Have I missed some obvious library or some smart technique somewhere?</p>