This is the only method I know of making a list of the same size with zeros. Just curious, is there another way?
line = [13,20,0,44]
result = []
for i in range(len(line)):
result.append(0)
print (result)
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german
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1and then there is the `result = [0 for _ in line]` method. But why do you want to do that? You do not have to initialize `list`s in Python – Ma0 Oct 18 '17 at 09:28
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1[0] * len(line) – Abdul Niyas P M Oct 18 '17 at 09:29
1 Answers
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Python 2 & 3
out = [0 for _ in line]
-- OR --
out = [0] * len(line)
Daniel Trugman
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@vaultah Agreed, in this case that is shorter, but this pattern has some perils like in `[X()] * 10` where `X` is a mutable type, when all list elements will reference the same object unlike using the first idiom `[X() for _ in range(...)]` – user2390182 Oct 18 '17 at 09:33
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1@vaultah True, I still think it's noteworthy for beginners that the two patterns are not equivalent. – user2390182 Oct 18 '17 at 09:37