CODEWITHSUNDEEP
pythonpython-3.x
Srinabh
Srinabh

Reputation: 400

Taking 3 inputs in the same line in Python 3.5

I was trying to take 3 integer inputs on the same line using split, but it throws an error

int() argument must be a string, a bytes-like object or a number, not 'list'

Here is my code

  n,a,k = int(input().split())

Upvotes: 3

Views: 3287

Answers (5)

hygull
hygull

Reputation: 8740

You can also accomplish the same using the below procedural approach even if your input contains alphabets with at least 3 numbers or more.

If you will enter a string with less than 3 numbers also, function wil take care of it and return 0 for the corresponding variables. Examples are included at very bottom. Please have a look.

import re

def get_inputs(n=3):
    inp = input('Enter a sentence with at least 3 numbers included: ').strip()
    arr =  re.sub(r'[^0-9]+', ' ', inp).strip().split()

    if len(arr) < n:
        for i in range(n):
            try:
                arr[i]
            except IndexError as e:
                arr.append(0)

    n, a, k, *rest = list(map(int, arr))

    return (n, a, k, rest)

# Start
if __name__ == "__main__":
    # Get 3 numbers
    out1 = get_inputs() 
    n, a, k, rest = out1

    print('n =', n)
    print('a =', a)
    print('k =', k)
    print('rest = ', rest)

Output

rishi@Rishidev MINGW64 /c/Rishikesh67/Projects/Working/hygull.github.io/codes/python3.6 (master)
$ python get_numbers.py
Enter a sentence with at least 3 numbers included: Hello, I like 65, 45 and 90 ok.
n = 65
a = 45
k = 90
rest =  []


rishi@Rishidev MINGW64 /c/Rishikesh67/Projects/Working/hygull.github.io/codes/python3.6 (master)
$ python get_numbers.py
Enter a sentence with at least 3 numbers included: 12, 23 and 67 are nice but 34 and 23 also.
n = 12
a = 23
k = 67
rest =  [34, 23]


rishi@Rishidev MINGW64 /c/Rishikesh67/Projects/Working/hygull.github.io/codes/python3.6 (master)
$ python get_numbers.py
Enter a sentence with at least 3 numbers included: 12 34 56
n = 12
a = 34
k = 56
rest =  []


rishi@Rishidev MINGW64 /c/Rishikesh67/Projects/Working/hygull.github.io/codes/python3.6 (master)
$ python get_numbers.py
Enter a sentence with at least 3 numbers included: 45 12    34   21 12 hello 99
n = 45
a = 12
k = 34
rest =  [21, 12, 99]


rishi@Rishidev MINGW64 /c/Rishikesh67/Projects/Working/hygull.github.io/codes/python3.6 (master)
$ python 1.py
Enter a sentence with at least 3 numbers included: Now 67 is best for me.
n = 67
a = 0
k = 0
rest =  []

Upvotes: 0

tafaust
tafaust

Reputation: 1518

You may want to use map like so :

n,a,k = map(int, input().split())

as the split function returns a list and not a str. map applies the int function to every element (str) of the list.

Upvotes: 1

U13-Forward
U13-Forward

Reputation: 71570

OR:

import ast
n,a,k = ast.literal_eval(','.join(input().split()))
print(n,a,k,sep='\n')

Example Output:

1 2 3
1
2
3

Upvotes: 0

cdarke
cdarke

Reputation: 44344

Since others have given a map solution, here is one using a simple list comprehension:

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

Does it have an advantage over map()? Not really, but some prefer this approach.

Upvotes: 1

fukatani
fukatani

Reputation: 190

Please try

n,a,k = map(int, input().split())

int can receive one string only.

Upvotes: 3

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