What is the 'pythonic' equivalent to the 'fold' function from functional programming?

What is the most idiomatic way to achieve something like the following, in Haskell:

foldl (+) 0 [1,2,3,4,5]
 --> 15
 

Or its equivalent in Ruby:

[1,2,3,4,5].inject(0) {|m,x| m + x}
 #> 15
 

Obviously, Python provides the 'reduce' function, which is an implementation of fold, exactly as above, however, I was told that the 'pythonic' way of programming was to avoid lambda terms and higher-order functions, preferring list-comprehensions where possible. Therefore, is there a preferred way of folding a list, or list-like structure in Python that isn't the reduce function, or is reduce the idiomatic way of achieving this?

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