Can I do a reduce on a list comprehension into two lists, based on two values?
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Published on 2010-12-27T15:28:38Z
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2010/12/27
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python
|python-2.5
I've got the following code.
sum_review = reduce(add,[book['rw'] for book in books])
sum_rating = reduce(add,[book['rg'] for book in books])
items = len(books)
avg_review = sum_review/items
avg_rating = sum_rating/items
What I'd like is this.
sum_review,sum_rating = reduce(add,([book['rw'],[book['rg']) for book in books])
items = len(books)
avg_review = sum_review/items
avg_rating = sum_rating/items
Obviously this doesn't work. How can I solve this redundancy, without a regular loop?
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