[Tutor] removing nodes using ElementTree

[Alan Gauld]

On 27/06/15 01:03, street.sweeper at mailworks.org wrote:

> I'm trying to merge and filter some xml.  This is working well, but I'm
> getting one node that's not in my list to include.

This may be similar to a recent post with similar issues.

> for rec in xmlet:
>      if rec.find('part').find('pid').text not in il:
>          xmlet.remove(rec)

You're removing records from the thing you are iterating over.
That's never a good idea, and often causes the next record to
be stepped over without being processed.

Try taking a copy before iterating and then modify the original.

for rec in xmlet[:]:    # slice creates a copy
     if rec....
        xmlet.remove(rec)

HTH
-- 
Alan G
Author of the Learn to Program web site
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