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pythonclosurescython

pythonic way of composing itemgetter and attrgetter?

I've got some code I'm porting to Cython which had a line like

my_list.sort(key=lambda x: x.attr[item])

Is there a nice pythonic way of avoiding the closure with some combination of itemgetter and attrgetter?

Solution

  • The key is to use the package functional:

    from functional import compose
from operator import attrgetter, itemgetter
my_list.sort(key=compose(itemgetter(item), attrgetter('attr')))