Welcome to Python Street

Variables are labeled containers that store information. Pop a value into a box and watch it light up.

Functions are reusable instructions. Press a button to activate a worker robot.

def deliver(package):
    return f"{package} delivered!"

def make_pizza():
    return "🍕 hot pizza ready!"

Lists store multiple items in order. Load and unload your delivery truck.

tasks = ["travel", "hotel", "budget"]

Dictionaries connect a label to its value. Tap a key to open its drawer.

worker = {
  "name": "Planner",
  "tool": "Maps"
}

Classes are blueprints used to stamp out objects. Press the blueprint to mint workers.

class Agent:
    def __init__(self, role):
        self.role = "Planner"

    def work(self):
        return "Building a city route"

Imports let you load extra tools into your program. Pick a module to see what it unlocks.

import math

math.sqrt(16)   # 4.0
math.pi         # 3.14159
math.floor(2.9) # 2

Python can read, write, and append files on disk. Pick a mode to see how it works.

# Read entire file
with open("log.txt", "r") as f:
    content = f.read()

# Read line by line
with open("log.txt", "r") as f:
    for line in f:
        print(line.strip())

# Read all lines into a list
with open("log.txt", "r") as f:
    lines = f.readlines()

Loops repeat actions automatically. Hit play and watch packages roll.

tasks = ["map", "ticket", "hotel", "snack"]

for item in tasks:
    deliver(item)

Tap a mission card when you understand the idea — collect the badges.

Python code is just instructions that power AI City. Hover the lines to feel each piece.

city_name = "AI City"

def welcome_city(name):
    print(f"Welcome to {name}!")

welcome_city(city_name)

These are the last Python pieces you will hit immediately in real AI code: conditionals, loop control, error handling, and packages with JSON data.

score = 82

if score >= 90:
    level = "excellent"
elif score >= 70:
    level = "good"
else:
    level = "needs work"

print(level)

Combine the four ingredients to power Python Street and stabilize AI City.