On Thu, Sep 26, 2013 at 12:11 PM, Watson, Paul <pwatson@phs.org> wrote:
difflib appears to be very well laid out and utilizes well-known algorithms.

The only difficulty is that it only works when everything is in memory. Is there any ongoing effort to allow it to work on larger files?

Not that I know of; you can try searching bugs.python.org, though, to verify.
 
Would it be better to integrate larger dataset sizes into difflib or to create something new such as bigdifflib?

This would be overkill for a new module. Patches are welcome if you would like to propose a solution for the pre-existing difflib module.

-Brett
 

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