Antoine Pitrou <pit...@free.fr> added the comment:

Suggestions:

- do it on BufferedReader, rather than TextIOWrapper: if you want full-speed 
scanning of log files, you probably want to open them in binary mode

- rather than implementing a full-blown iterator, you can start with simple 
primitives: e.g. a method called readprevline() (or even scan_back() if you 
want to make the stop character(s) configurable)

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue1677872>
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