Python Interview Questions
roy at panix.com
Mon Nov 19 15:30:54 CET 2012
In article <50a9e5cf$0$21863$c3e8da3$76491128 at news.astraweb.com>,
Steven D'Aprano <steve+comp.lang.python at pearwood.info> wrote:
> I see. It wasn't clear from your earlier description that the items had
> been post-processed from collections of raw log lines to fixed records.
Well, I did provide the code that does this.
> But it doesn't actually change my analysis any. See below.
> By the way, based on the sample data you show, your script is possibly
> broken. You don't record either the line number that raises, or the
> exception raised, so your script doesn't differentiate between different
> errors that happen to occur with similar stack traces.
You really might want to read the code I provided. Here's the reference
The "header" referred to does indeed contain the exception raised. And
the line numbers are included. Here's a typical output stanza:
2012-11-19T00:00:15+00:00 web5 ËË2012-11-19 00:00:15,831 :
songza-api IGPhwNU2SJ691cx8 4C0ABFA9-50A974E7-384995 W6D-HSO
220.127.116.11 songza.django.middleware ERROR process_exception() Path =
u'/api/1/station/1459775/next', Exception =
ValueError(u"<SequentialSongPicker: <Station 1459775: u'Old School
105.3'>>: no song ids for mp3",)
> I say "possibly" broken because I don't know what your requirements are.
Our requirements are to scan the logs of a production site and filter
down the gobs and gobs of output (we produced 70 GB of log files
yesterday) into something small enough that a human can see what the
most common failures were. The tool I wrote does that.
The rest of this conversation is just silly. It's turning into getting
hit on the head lessons.
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