20 Mini Projects in Python with Source Code

def todo_list():
    tasks = []

    while True:
        task = input("Enter a task (or 'quit' to stop): ")
        if task.lower() == 'quit':
            break
        tasks.append(task)

    print("Your To-Do List:")
    for i, task in enumerate(tasks, 1):
        print(f"{i}. {task}")

todo_list()

import random

def hangman():
    words = ['python', 'java', 'swift', 'javascript']
    word = random.choice(words)
    guessed = "_" * len(word)
    word = list(word)
    guessed = list(guessed)
    attempts = 6
    guessed_letters = []

    while attempts > 0:
        print(' '.join(guessed))
        guess = input("Guess a letter: ").lower()
        if guess in guessed_letters:
            print("You already guessed that letter.")
        elif guess in word:
            for i, letter in enumerate(word):
                if letter == guess:
                    guessed[i] = guess
            if "_" not in guessed:
                print("Congratulations! You won!")
                break
        else:
            attempts -= 1
            print(f"Wrong guess. You have {attempts} attempts left.")
        guessed_letters.append(guess)

    if attempts == 0:
        print(f"You lost! The word was {''.join(word)}.")

hangman()

def currency_converter():
    rate = float(input("Enter the exchange rate from USD to EUR: "))
    dollars = float(input("Enter amount in USD: "))
    euros = dollars * rate
    print(f"{dollars} USD is equal to {euros} EUR")

currency_converter()

contacts = {}

def add_contact(name, phone):
    contacts[name] = phone

def view_contacts():
    for name, phone in contacts.items():
        print(f"{name}: {phone}")

while True:
    choice = input("1. Add Contact 2. View Contacts 3. Quit: ")
    if choice == '1':
        name = input("Enter name: ")
        phone = input("Enter phone number: ")
        add_contact(name, phone)
    elif choice == '2':
        view_contacts()
    elif choice == '3':
        break
    else:
        print("Invalid choice!")

import time

def alarm_clock():
    alarm_time = input("Enter the time to set the alarm (HH:MM): ")
    print(f"Alarm set for {alarm_time}")
    while True:
        current_time = time.strftime("%H:%M")
        if current_time == alarm_time:
            print("Wake up!")
            break
        time.sleep(1)

alarm_clock()

def chatbot():
    print("Hi! I'm a simple chatbot. Type 'quit' to exit.")
    while True:
        user_input = input("You: ")
        if user_input.lower() == 'quit':
            print("Goodbye!")
            break
        else:
            print(f"Bot: You said '{user_input}'")

chatbot()

import random
import string

def password_generator(length):
    characters = string.ascii_letters + string.digits + string.punctuation
    password = ''.join(random.choice(characters) for _ in range(length))
    return password

length = int(input("Enter the length of the password: "))
print(f"Generated Password: {password_generator(length)}")

def print_board(board):
    for row in board:
        print(" | ".join(row))
        print("-" * 5)

def check_winner(board, mark):
    for row in board:
        if all(s == mark for s in row):
            return True
    for col in range(3):
        if all(row[col] == mark for row in board):
            return True
    if all(board[i][i] == mark for i in range(3)) or all(board[i][2 - i] == mark for i in range(3)):
        return True
    return False

def tic_tac_toe():
    board = [[' ' for _ in range(3)]]
    current_player = "X"
    for _ in range(9):
        print_board(board)
        row, col = map(int, input(f"Player {current_player}, enter row and column: ").split())
        if board[row][col] == ' ':
            board[row][col] = current_player
            if check_winner(board, current_player):
                print_board(board)
                print(f"Player {current_player} wins!")
                return
            current_player = "O" if current_player == "X" else "X"
        else:
            print("Cell is already taken. Try again.")
    print_board(board)
    print("It's a tie!")

tic_tac_toe()

import requests

def get_weather(city):
    api_key = 'your_api_key'
    base_url = f"http://api.openweathermap.org/data/2.5/weather?q={city}&appid={api_key}&units=metric"
    response = requests.get(base_url)
    data = response.json()
    if data['cod'] == 200:
        main = data['main']
        weather = data['weather'][0]
        print(f"City: {city}")
        print(f"Temperature: {main['temp']}°C")
        print(f"Weather: {weather['description']}")
    else:
        print("City not found.")

city = input("Enter city name: ")
get_weather(city)

questions = {
    "What is the capital of France?": "Paris",
    "What is 2 + 2?": "4",
    "What is the color of the sky?": "Blue"
}

def quiz_game():
    score = 0
    for question, answer in questions.items():
        user_answer = input(question + " ")
        if user_answer.lower() == answer.lower():
            score += 1
    print(f"Your score is {score}/{len(questions)}")

quiz_game()

import random

def rps_game():
    choices = ["rock", "paper", "scissors"]
    computer_choice = random.choice(choices)
    user_choice = input("Choose rock, paper, or scissors: ").lower()
    if user_choice == computer_choice:
        print("It's a tie!")
    elif (user_choice == "rock" and computer_choice == "scissors") or \
         (user_choice == "paper" and computer_choice == "rock") or \
         (user_choice == "scissors" and computer_choice == "paper"):
        print("You win!")
    else:
        print("You lose!")
    print(f"Computer chose: {computer_choice}")

rps_game()

def binary_search(arr, x):
    low, high = 0, len(arr) - 1
    while low <= high:
        mid = (low + high) // 2
        if arr[mid] == x:
            return mid
        elif arr[mid] < x:
            low = mid + 1
        else:
            high = mid - 1
    return -1

arr = [2, 3, 4, 10, 40]
x = int(input("Enter the number to search: "))
result = binary_search(arr, x)
if result != -1:
    print(f"Element is present at index {result}")
else:
    print("Element is not present in array")

import requests

def shorten_url(long_url):
    api_url = "https://api.shrtco.de/v2/shorten"
    params = {"url": long_url}
    response = requests.post(api_url, params=params)
    data = response.json()
    if data['ok']:
        return data['result']['short_link']
    else:
        return "Error: Unable to shorten the URL"

long_url = input("Enter the URL to shorten: ")
short_url = shorten_url(long_url)
print(f"Shortened URL: {short_url}")

import markdown

def markdown_to_html(md_text):
    html = markdown.markdown(md_text)
    return html

md_text = """
# Heading

This is a paragraph with **bold** text and *italic* text.

- List item 1
- List item 2
"""
html = markdown_to_html(md_text)
print(html)

from PIL import Image

def resize_image(input_path, output_path, size):
    with Image.open(input_path) as img:
        img = img.resize(size, Image.ANTIALIAS)
        img.save(output_path)

input_path = 'input.jpg'
output_path = 'output.jpg'
size = (800, 600)
resize_image(input_path, output_path, size)
print("Image resized successfully!")

import json
import csv

def json_to_csv(json_file, csv_file):
    with open(json_file, 'r') as jfile:
        data = json.load(jfile)

    with open(csv_file, 'w', newline='') as cfile:
        writer = csv.writer(cfile)
        header = data[0].keys()
        writer.writerow(header)
        for row in data:
            writer.writerow(row.values())

json_file = 'data.json'
csv_file = 'data.csv'
json_to_csv(json_file, csv_file)
print("JSON data converted to CSV successfully!")