On Fri, Nov 28, 2003 at 06:24:30PM -0500, Raymond Hettinger wrote:
...
> students.sort(key=extract('grade')) # key=lambda r:r.grade
> students.sort(key=extract(2)) # key=lambda r:[2]
Why should the extract function interpret a string argument as getattr
and an int argument as getitem?
I find the explicit version more readable:
students.sort(key=attrgetter('grade')) # key=lambda r:r.grade
students.sort(key=itemgetter(2)) # key=lambda r:[2]
students.sort(key=itemgetter('grade')) # key=lambda r:r['grade']
Oren
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