User Input and Type Conversion

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Learning Objectives

  • Capture user input with input()
  • Convert between data types
  • Handle basic input errors

Getting Input from the User

The input() function pauses your program and waits for the user to type something.

name = input("What is your name? ")
print(f"Hello, {name}!")

Converting Input to Numbers

input() always returns a string. Use int() or float() to convert it for math.

age = int(input("Enter your age: "))
print(f"Next year you will be {age + 1}")

Course Example: Binary Converter

A script that takes a decimal number and converts it to binary.

number = input("Convert to binary: ")

# convert to integer
integer = int(number)

# convert integer to binary
binary = bin(integer)

print(binary)

Course Example: Days Converter

Break a total number of days into years, weeks, and remaining days.

days = int(input("Number of days:"))

years = days // 365
weeks = (days % 365) // 7
days = days - ((years * 365) + (weeks * 7))

print("Years:", years)
print("Weeks:", weeks)
print("Days:", days)

📝 Exercise: Simple Calculator

Ask the user for two numbers and print their sum, difference, product, and quotient.

code.py
Output

            

        

    


    

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