In Python, you can read multiple values from a single line of input using the input() function combined with string splitting and type conversion.
This is a common interview question and very useful for handling space-separated or comma-separated user input.
Let’s go step by step 👇
🔹 1. Basic Input Reminder
The input() function reads input as a string from the user.
data = input("Enter something: ")
print(data)Example Input:
Hello WorldOutput:
Hello World✅ Everything entered by the user is treated as a single string.
🔹 2. Reading Multiple Values in One Line (Using split())
The split() method separates a string into parts based on spaces (or another delimiter).
🧩 Example:
a, b = input("Enter two values: ").split()
print("Value of a:", a)
print("Value of b:", b)Input:
10 20Output:
Value of a: 10
Value of b: 20✅ split() divides the input string by spaces and assigns the parts to variables.
🔹 3. Reading More Than Two Values
If you don’t know how many inputs will be given, you can read all values into a list.
values = input("Enter multiple numbers: ").split()
print(values)Input:
1 2 3 4 5Output:
['1', '2', '3', '4', '5']✅ All elements are stored as strings in a list.
🔹 4. Converting Input to Integers (Using map())
If you want numeric input (like integers or floats), you must convert the strings.
numbers = list(map(int, input("Enter numbers: ").split()))
print(numbers)Input:
10 20 30 40Output:
[10, 20, 30, 40]✅ map(int, ...) converts each string to an integer.
✅ list() stores them in a list.
🔹 5. Reading Comma-Separated Values
You can also split by a custom delimiter, e.g., a comma (,).
numbers = list(map(int, input("Enter numbers separated by commas: ").split(',')))
print(numbers)Input:
10,20,30,40Output:
[10, 20, 30, 40]✅ split(',') splits the string at commas instead of spaces.
🔹 6. Reading and Unpacking Dynamic Inputs
You can unpack input values directly into multiple variables if you know the count.
x, y, z = map(int, input("Enter three numbers: ").split())
print(x, y, z)Input:
5 10 15Output:
5 10 15✅ Each space-separated number is mapped to a variable.
🔹 7. Reading Float Values
You can use float instead of int when reading decimal numbers.
a, b, c = map(float, input("Enter three float values: ").split())
print(a, b, c)Input:
1.2 3.4 5.6Output:
1.2 3.4 5.6✅ Works exactly like integers but allows decimal input.
🔹 8. Using List Comprehension (Alternative to map())
You can also use list comprehension to achieve the same result.
numbers = [int(x) for x in input("Enter numbers: ").split()]
print(numbers)Input:
5 10 15Output:
[5, 10, 15]✅ Equivalent to using map(int, ...), but more readable for some developers.
🔹 9. Example: Reading a Matrix (2D Input)
For multiple lines of multiple values:
rows = 3
matrix = [list(map(int, input(f"Enter row {i+1}: ").split())) for i in range(rows)]
print(matrix)Input:
1 2 3
4 5 6
7 8 9Output:
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]✅ Reads multiple lines of numbers and builds a 2D list.
🧾 Summary Table
| Task | Example Code | Output |
|---|---|---|
| Read two space-separated values | a, b = input().split() | a, b as strings |
| Read multiple integers | list(map(int, input().split())) | [10, 20, 30] |
| Read comma-separated values | list(map(int, input().split(','))) | [10, 20, 30] |
| Read floats | list(map(float, input().split())) | [1.2, 3.4] |
| Read fixed number of values | x, y, z = map(int, input().split()) | x, y, z as integers |
| Read multiple lines (2D list) | [list(map(int, input().split())) for _ in range(n)] | [[...], [...]] |
✅ In short:
You can read multiple values from a single input in Python using:
a, b = input().split() numbers = list(map(int, input().split()))
split()→ splits input into partsmap()→ converts input to desired typelist()→ stores all values
🧩 Final Example
# Read 3 integers in one line
x, y, z = map(int, input("Enter 3 numbers: ").split())
print(f"Their sum is: {x + y + z}")Input:
5 10 15Output:
Their sum is: 30✅ In summary:
Python makes it easy to handle multiple inputs in one line using a combination ofinput() + split() + map() — clean, simple, and powerful.