Project: Simple Weather App with OpenWeatherMap API

Let’s create a project for building a simple weather app using Python and the OpenWeatherMap API to fetch current weather data.

1. Project Setup:

• Create a new Python project or script.
• Install necessary libraries:

pip install requests

2. OpenWeatherMap API Key:

• Obtain an API key from OpenWeatherMap by creating an account on their website.

3. Weather App:

• Use the OpenWeatherMap API to fetch current weather data:

import requests

def get_weather(api_key, city):
    base_url = "http://api.openweathermap.org/data/2.5/weather"
    params = {
        'q': city,
        'appid': api_key,
        'units': 'metric',  # Use 'imperial' for Fahrenheit
    }

    # Send a GET request to the OpenWeatherMap API
    response = requests.get(base_url, params=params)

    # Check if the request was successful
    if response.status_code == 200:
        weather_data = response.json()

        # Extract relevant information
        temperature = weather_data['main']['temp']
        description = weather_data['weather'][0]['description']

        return f"The current weather in {city} is {temperature}°C with {description}."
    else:
        print(f"Failed to retrieve weather data. Status code: {response.status_code}")
        return None

# Example usage
api_key = 'your_openweathermap_api_key'
city = input("Enter a city name: ")
weather_result = get_weather(api_key, city)

if weather_result:
    print(weather_result)

4. User Interaction:

• Allow the user to input a city name and fetch the current weather:

def get_weather_and_display(api_key, user_city):
    weather_result = get_weather(api_key, user_city)

    if weather_result:
        print(weather_result)

# User interaction loop
while True:
    user_city = input("\nEnter a city name for weather information (or 'exit' to end):\n")
    
    # Exit the loop if the user types 'exit'
    if user_city.lower() == 'exit':
        break

    get_weather_and_display(api_key, user_city)

5. Project Conclusion:

• Summarize the project’s goals, outcomes, and potential improvements.
• Include any insights gained from building a simple weather app using the OpenWeatherMap API.

This project provides a basic example of using the OpenWeatherMap API to fetch current weather data for a specified city. You can expand the project by adding more features such as extended weather forecasts, graphical representations, or integrating with additional APIs for more comprehensive weather information.