Day 7: Mini Project — Let's Build Something Real!

Remember What You Learned?

Variables store things. Input asks the user. Conditions make decisions. Loops repeat stuff. Today we mix ALL of them like ingredients in a recipe!

Think of It Like a Robot Friend

Imagine a robot at your school gate. It asks every student their name, says hello, and gives a special message to the class monitor. It does this for every student without getting tired. That robot is just input + variable + if + loop working together!

Let's Build It Step by Step

Step 1 — Just input and print:

name = input("Your name: ")
print("Hello", name)

Step 2 — Add a condition:

name = input("Your name: ")

if name == "Rohith":
    print("Welcome back boss!")
else:
    print("Hello", name)

Step 3 — Add a loop so it works for 3 students:

for i in range(3):
    name = input("Your name: ")

    if name == "Rohith":
        print("Welcome back boss!")
    else:
        print("Hello", name)

See how we built it piece by piece? That's exactly how real developers code!

Real World Connection

When you log into Instagram it asks your username (input), stores it (variable), checks if it matches (condition), then shows your personal feed (output). You just built that exact same logic!

Full Project: Score Checker

for i in range(3):
    name = input("Player name: ")
    score = int(input("Your score: "))

    if score >= 90:
        print(name, "Grade A!")
    elif score >= 70:
        print(name, "Grade B!")
    else:
        print(name, "keep practicing!")

    print("---")

All 6 concepts in 10 lines. This is literally how every school grading app works!

Common Mistakes

Using = instead of == inside if.

if name = "Rohith":   # WRONG
if name == "Rohith":  # CORRECT

Wrong indentation inside the loop.

for i in range(3):
name = input()       # WRONG — not indented!

for i in range(3):
    name = input()   # CORRECT

Mini Challenge

Quick Quiz

Q: Which concept stores the user's name after they type it? A: Variables! name = input("Name: ")

Q: = vs == — which goes inside an if statement? A: == always! = stores, == compares.

Q: What repeats the whole program for 3 students? A: A loop! for i in range(3)

Key Takeaways