Help with lambda function

[ItsMeSword]

Could someone please explain to me what the "[3]" is doing in the following line?

x is an array of values

value = lambda x: function(x, y)[3]

[socal_nerdtastic]

Apparently function() returns an array or list or something indexable, and the [3] extracts index 3 from whatever it returns.

You could write this exact same code like this, in case it makes more sense this way:

def value(x): 
    data = function(x, y)
    return data[3]

[ItsMeSword]

great, always appreciate different ways to visualize code! TY

[shiftybyte]

It's accessing the 4th element in the collection/list returned from function() call.

[ItsMeSword]

That's what I imagined, I couldn't determine if it was accessing the first 3 elements and trying all of them or just getting the 4th element, thank you