Variables and Input Statement

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Learning outcomes

• use input() for user input
• convert input into required data type
• take multiple values in one line
• print clean output using formatting

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Basic input

name = input("Enter your name: ")
print("Hello", name)

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Numeric input with conversion

age = int(input("Enter age: "))
height = float(input("Enter height in meters: "))

• int() for integers
• float() for decimals

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Multiple inputs in one line

a, b = input("Enter two numbers: ").split()
a = int(a)
b = int(b)
print(a + b)

a, b = map(int, input("Enter two numbers: ").split())
print(a + b)

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Output formatting

name = "Dhruv"
marks = 87
print(f"{name} scored {marks} marks")

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Common mistakes

• forgetting type conversion after input()
• using + between string and integer
• expecting input() to return int automatically

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Exam-focused points

• default return type of input() is str
• type conversion functions: int(), float(), str()
• split() returns a list of strings

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Practice questions

1. Take length and breadth as input and print area.
2. Take 3 marks and print total and average.
3. Write program to input name, class, and roll number and print in one formatted line.