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Date: Wed, 20 May 2015 11:12:11 -0500
From: Tim Chase <python.list@tim.thechases.com>
To: python-list@python.org
Subject: Re: Best approach to create humongous amount of files
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Xref: csiph.com comp.lang.python:90965

On 2015-05-20 17:59, Peter Otten wrote:
> Tim Chase wrote:
> >   wordlist[:] = [ # just lowercase all-alpha words
> >     word
> >     for word in wordlist
> >     if word.isalpha() and word.islower()
> >     ]
> 
> Just a quick reminder: if the data is user-provided you have to
> sanitize it:

Thus my sanitizing to isalpha()+islower() words in my sample.

> I expect that performance will be dominated by I/O; if that's
> correct the extra work of serializing the JSON should not do much
> harm.

I seem to recall that there was a change-over, that an older JSON
library was particularly slow, but that a later replacement sped that
up immensely.  So performance may depend heavily on which version
you're running.

[to the OP] But yes, if you're trusting unsanitized data, Peter's
suggestion would be the way to go.

-tkc