[issue11802] filecmp.cmp needs a documented way to clear cache

Nadeem Vawda report at bugs.python.org
Tue Jun 7 02:30:19 CEST 2011


Nadeem Vawda <nadeem.vawda at gmail.com> added the comment:

> Also, I want to take a fresh look at the cache strategy (saving diffs
> of two files vs saving file contents individually) and think about
> whether than makes any sense at all for real world use cases
> (is there a common need to compare the same file pairs over and over
> again or is the typical use the comparison of many different file
> pairs).   There may even be a better way to approach the underlying
> problem using hashes of entire files (md5, sha1, etc).

I like that idea. A hash-based approach could speed up the detection of
non-equal files quite a bit.

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