title: Python: handling a large set of data. Scipy or Rpy? And how?
body: <p>In my python environment, the Rpy and Scipy packages are already installed. </p>
  
  <p>The problem I want to tackle is such:</p>
  
  <p>1) A huge set of financial data are stored in a text file. Loading into Excel is not possible</p>
  
  <p>2) I need to sum a certain fields and get the totals.</p>
  
  <p>3) I need to show the top 10 rows based on the totals.</p>
  
  <p>Which package (Scipy or Rpy) is best suited for this task? </p>
  
  <p>If so, could you provide me some pointers (e.g. documentation or online example) that can help me to implement a solution?</p>
  
  <p>Speed is a concern. Ideally scipy and Rpy can handle the large files when even when the files are so large that they cannot be fitted into memory</p>