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DDR
Asked: 2020-01-31 22:06:14 +0800 CST 2020-01-31 22:06:14 +0800 CST

Get list of integers using stdin.readline()

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I use this the following input to enter a list of numbers, for example this list: 1 2 3 4 5 6

a=stdin.readline().strip().split()

if I give print(a)it the show me ['1','2','3','4','5','6'], my question is if that input can be modified in such a way that it shows me the list of integers ( [1,2,3,4,5,6]) but not of strings, or is it simply not possible?

python

1 Answers

  1. Best Answer

    You must explicitly cast a int, for example using compressed lists:

    from sys import stdin

a = [int(n) for n in stdin.readline().strip().split()]

    Or using input():

    a = [int(n) for n in input().split()]

    Note that entering a value that cannot be converted to intwill result in an exception ( ValueError: invalid literal for int() with base 10), this includes substrings with the decimal point ('4.2', '7.25', etc). Whether to accept signed integers ('-3'. '-4', '+7', etc).

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