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I'm having a hard time with the final written exercise. I've read about list comprehensions, but something isn't clicking for me. Any help is appreciated.
 one year ago
 one year ago
I'm having a hard time with the final written exercise. I've read about list comprehensions, but something isn't clicking for me. Any help is appreciated.
 one year ago
 one year ago

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snarkBest ResponseYou've already chosen the best response.3
they are just another way of producing a new list. if a = [1,2,3,4,5,6,7,8], we could produce a list of the squared elements of a: sqrs = [] # an empty list for x in a: # for each element of a b.append(x*x) # add x*x to the list b list comprehensions just give you a more concise mechanism to do it: b = [ x*x for x in a] # b is the same list as produced above. if we have some function def def f(x): return x*x*x + 17 we can produce a list of f(i) for each i in a b = [f(i) for i in a] which is the list [f(1),f(2)...f(8)] we can even add a condition: b = [x for x in a if x % 2 == 0] this is the same as: b = [] for x in a: if x % 2 == 0: b.append(x) a list comprehension is only a shorter (different) way of doing it, despite the name, nothing really new. play with a few in idle. a = [1,2,3,4], b = [x/2 for x in a], and print b. I hope I haven't made things worse...
 one year ago

andrew.m.higgsBest ResponseYou've already chosen the best response.0
Very nice concise answer. Thank you for asking the question Susan. That gave snark the opportunity to answer.
 one year ago

susanjrobertsonBest ResponseYou've already chosen the best response.0
Thanks so much  I think I'm getting it :)
 one year ago

ScreechBest ResponseYou've already chosen the best response.0
Thank you for bringing it up. I was struggling as well and was unfamiliar with list comprehensions. I'll study up.
 one year ago
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