Miki Tebeka <[email protected]> added the comment:
Hmmm, too much time has passed and my 1bit memory has overflowed since :)
IIRC it has to do with the fact that not all nodes in BeautifulSoup has a
"name" attribute. I wanted to count how may "tr" there were, so
len(filter(lambda n: n == "tr", map(attrgetter("name"), soup)))
was what I wanted to do, but I got AttributeError.
The natural way to me would be
len(filter(lambda n: n == "tr", map(attrgetter("name", ""), soup)))
but instead I had to do
len(filter(lambda n: n == "tr", map(lambda n: gettattr(n, "name", ""),
soup)))
Another thing I can think of is for usage in count/max ... when some of the
objects don't have the attribute you're looking for and it's by design
(bad one
maybe).
You'd like to be able to do:
max(map(itemgetter("time", 0)), articles)
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<http://bugs.python.org/issue4124>
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