[pypy-issue] [issue1579] Potential speedup reading large file into a dict

[lesshaste]

lesshaste <drraph at gmail.com> added the comment:

My fake data isn't very good as it gives you one value per key. Here is a 
slightly better attempt.

perl -E 'say int rand 1e7, $", int rand 1e4 for 1 .. 1e7' > largefile.txt

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status: unread -> chatting

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