Python for-loop without index and item

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余生分开走
余生分开走 2021-01-03 19:27

Is it possible in python to have a for-loop without index and item? I have something like the following:

list_1 = []
for i in range(5):
    list_1.append(3)
         


        
2条回答
  •  -上瘾入骨i
    2021-01-03 20:11

    While @toine is completly right about using _, you could also refine this by means of a list comprehension:

    list_1 = [3 for _ in range(5)]
    

    This avoids the ITM ("initialize, than modify") anti-pattern.

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