Yusuf Ning Yusuf Ning - 1 year ago 142
Python Question

using map function to square a list

I have a list which I want to square each of them.

this is what I have done

def square(x):
return x*x

numbers = [1,2,3,4,5,6]
squares = map(square, numbers)

squares_as_strings = str(squares)


but the answer is this

[,1,,, ,4,,, ,9,,, ,1,6,,, ,2,5,,, ,3,6,]

instead of


Answer Source

You map the square function, but you're not mapping the str function. Your squares_as_strings is one string, of the entire list.

Change str(squares) to map(str, squares).

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