Basic Input and Output in Python 🖥️

Python provides simple ways to display output to users and take input from them using print() and input() functions.

1️⃣ Output: print() Function 🖨️

The print() function is used to display messages, numbers, and variables.

🔹 Printing Strings

print("Hello, World!")
print("Python is awesome!")
Output:

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Hello, World!
Python is awesome!
🔹 Printing Variables


name = "Alice"
age = 25
print(name) # Output: Alice
print(age) # Output: 25
🔹 Printing Multiple Values

Use commas , to print multiple values.



name = "Bob"
age = 30
print("Name:", name, "Age:", age)
Output:



Name: Bob Age: 30

🔹 Using sep and end Parameters
sep (separator) defines what separates values.
end defines what comes at the end of the output (default is newline \n).


print("Python", "Java", "C++", sep=" | ") # Custom separator
print("Hello", end=" ")
print("World!") # No new line between prints

Output:



Python | Java | C++
Hello World!


2️⃣ Input: input() Function ⌨️

The input() function allows users to enter data.

🔹 Basic Input


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



Enter your name: Alice
Hello, Alice


🔹 Taking Numeric Input
By default, input() returns a string, so you need to convert it using int() or float().



age = input("Enter your age: ") # This stores age as a string
print(type(age)) # Output:


🔹 Converting Input to Integer or Float


age = int(input("Enter your age: ")) # Converts input to an integer
height = float(input("Enter your height in meters: ")) # Converts to float
print("Age:", age, "Height:", height)
Example Interaction:



Enter your age: 25
Enter your height in meters: 1.75
Age: 25 Height: 1.75


3️⃣ Combining Input and Output



name = input("Enter your name: ")
age = int(input("Enter your age: "))
print(f"Hello, {name}! You are {age} years old.") # f-string formatting

Example Interaction:



Enter your name: John
Enter your age: 30
Hello, John! You are 30 years old.

    Date: 2025-03-22 00:00:00.000000