fetch-my-weather 0.2.3

A beginner-friendly Python package for fetching weather data, designed for educational use.

fetch-my-weather

A beginner-friendly Python package for fetching weather data, designed for educational use.

Features

• 🌤️ Easy access to weather data from wttr.in
• 🌙 Moon phase information
• 🗺️ Location-based weather (cities, airports, coordinates)
• 🌍 Multiple language support
• 📊 Multiple output formats: JSON (with Pydantic models), raw JSON (dict), text and PNG
• 🏗️ Type-safe Pydantic models for JSON responses
• 🚀 Built-in caching to be nice to the wttr.in service
• 🧪 Mock mode for development and testing without API rate limits
• 🛡️ Beginner-friendly error handling (no exceptions)
• 📚 Designed for teaching Python and API interactions
• 🤖 LLM-ready with comprehensive LLM guide you can upload to AI assistants

Installation

pip install fetch-my-weather

Quick Start

import fetch_my_weather

# Get weather for your current location (based on IP) as JSON
current_weather = fetch_my_weather.get_weather()  # Default format is 'json'
print(f"Temperature: {current_weather['current_condition'][0]['temp_C']}°C")

# Get weather for Berlin in metric units as text
berlin_weather = fetch_my_weather.get_weather(location="Berlin", units="m", format="text")
print(berlin_weather)

# Get moon phase for a specific date
moon = fetch_my_weather.get_weather(is_moon=True, moon_date="2025-07-04")
print(moon)

Teaching Applications

fetch-my-weather is designed as a teaching tool for:

• Introducing API interactions in a beginner-friendly way
• Demonstrating HTTP requests without exception handling complexity
• Teaching caching concepts
• Working with different data formats (JSON, text and binary/PNG)
• Understanding URL construction and query parameters
• Processing and displaying weather data in applications
• Parsing and working with JSON data

Mini-Projects

The package includes a collection of ready-to-use mini-projects in the docs/mini-projects/ directory:

• Beginner projects: Weather dashboard, multi-city checker, image saver
• Intermediate projects: Weather-based recommendations, forecast tracking, wallpaper changer
• Advanced projects: Notification system, data analyzer, home automation, weather-based game

These projects provide practical examples and serve as great teaching resources or starting points for your own applications.

Usage Guide

Getting Weather Data

import fetch_my_weather

# JSON format (default) - current location with Pydantic model
weather = fetch_my_weather.get_weather()
# Access data using type-safe models with autocomplete
temp = weather.current_condition[0].temp_C
condition = weather.current_condition[0].weatherDesc[0].value

# Raw JSON format - returns a Python dictionary
raw_weather = fetch_my_weather.get_weather(format="raw_json")
# Access data using dictionary key/value access
temp = raw_weather["current_condition"][0]["temp_C"]
condition = raw_weather["current_condition"][0]["weatherDesc"][0]["value"]

# Text format - specific location
nyc_weather = fetch_my_weather.get_weather(location="New York", format="text")

# Airport code
lax_weather = fetch_my_weather.get_weather(location="lax")

# Geographic coordinates
coord_weather = fetch_my_weather.get_weather(location="48.8567,2.3508")

# Compact view (applies to text format)
compact_weather = fetch_my_weather.get_weather(view_options="0", format="text")

# Compact view + quiet (no city name in header)
compact_quiet = fetch_my_weather.get_weather(view_options="0q", format="text")

# Units: metric (default), USCS (u), or wind in m/s (M)
us_units = fetch_my_weather.get_weather(units="u")

# Different language
spanish = fetch_my_weather.get_weather(lang="es")

# Type annotations for better IDE support
from fetch_my_weather import WeatherResponse
weather_typed: WeatherResponse = fetch_my_weather.get_weather()

Getting Moon Phase Data

import fetch_my_weather

# Current moon phase
moon = fetch_my_weather.get_weather(is_moon=True)

# Moon phase for specific date
christmas_moon = fetch_my_weather.get_weather(is_moon=True, moon_date="2025-12-25")

# Moon with location hint (affects timing)
paris_moon = fetch_my_weather.get_weather(is_moon=True, moon_location_hint=",+Paris")

Getting PNG Weather Images

import fetch_my_weather

# Weather as PNG using format parameter (returns bytes)
london_png = fetch_my_weather.get_weather(location="London", format="png")

# Save PNG to file
with open("london_weather.png", "wb") as f:
    f.write(london_png)

# PNG with options (transparency)
transparent_png = fetch_my_weather.get_weather(location="Tokyo", format="png", png_options="t")

# Legacy method (deprecated but still supported)
legacy_png = fetch_my_weather.get_weather(location="Paris", is_png=True)

Configuration Settings

import fetch_my_weather

# Change cache duration (in seconds, 0 to disable)
fetch_my_weather.set_cache_duration(1800)  # 30 minutes

# Clear the cache
fetch_my_weather.clear_cache()

# Set a custom user agent
fetch_my_weather.set_user_agent("My Weather App v1.0")

# Enable mock mode (for development and testing)
fetch_my_weather.set_mock_mode(True)  # Use mock data instead of real API calls

# Use mock mode for a single request
mock_weather = fetch_my_weather.get_weather(location="London", use_mock=True)

Error Handling

import fetch_my_weather

# fetch-my-weather never raises exceptions, it returns error messages as strings
result = fetch_my_weather.get_weather(location="NonExistentPlace12345")

# Check if result is an error message (JSON format will return dict when successful)
if isinstance(result, str) and result.startswith("Error:"):
    print(f"Something went wrong: {result}")
elif isinstance(result, dict):
    print("Weather data received successfully as JSON")
else:
    print("Weather data received successfully")

Pydantic Models

When using the JSON format (default), the package returns a structured WeatherResponse Pydantic model that contains:

• current_condition: Current weather data (temperature, humidity, etc.)
• nearest_area: Location information (city, country, coordinates)
• weather: Forecast data for multiple days
• request: Information about the API request

# Example of accessing model properties
weather = fetch_my_weather.get_weather(location="London")

# Current weather
current = weather.current_condition[0]
print(f"Temperature: {current.temp_C}°C")
print(f"Condition: {current.weatherDesc[0].value}")

# Location data  
location = weather.nearest_area[0]
print(f"Location: {location.areaName[0].value}, {location.country[0].value}")

# Forecast
for day in weather.weather:
    print(f"Date: {day.date}")
    print(f"Max temp: {day.maxtempC}°C, Min temp: {day.mintempC}°C")
    print(f"Sunrise: {day.astronomy[0].sunrise}, Sunset: {day.astronomy[0].sunset}")

Complete Parameter Reference

The get_weather() function accepts these parameters:

Parameter	Type	Description
location	str	Location identifier (city name, airport code, coordinates, etc.)
units	str	Units system: m (metric, default), u (US/imperial), M (wind in m/s)
view_options	str	Display options: 0-3 (forecast days), n (narrow), q (quiet), etc.
lang	str	Language code (e.g., en, fr, es, ru, zh-cn)
format	str	Output format: json (default, Pydantic model), raw_json (Python dict), text, or png
is_png	bool	If True, return PNG image as bytes instead of text (deprecated, use format="png")
png_options	str	PNG-specific options: p (padding), t (transparency), etc.
is_moon	bool	If True, show moon phase instead of weather
moon_date	str	Date for moon phase in YYYY-MM-DD format (with is_moon=True)
moon_location_hint	str	Location hint for moon phase (e.g., ,+US, ,+Paris)
use_mock	bool	If True, use mock data instead of making a real API request

Documentation

📚 Full documentation is now live at michael-borck.github.io/fetch-my-weather!

The documentation includes:

• 📘 Detailed user guide with examples
• 🛠️ Mini-projects for learning (beginner to advanced)
• 🎓 Teaching resources for educators
• 📋 Technical documentation for developers

AI Assistant Integration

🤖 This package includes an LLM guide specifically designed for AI assistants.

To use with AI assistants:

1. Download the LLM-GUIDE.md file
2. Upload it to your AI assistant (like Claude, ChatGPT, etc.)
3. The AI can now help you use the package more effectively

License

MIT License - see the LICENSE file for details.

Contributors

This project is maintained by Michael Borck with contributions from various individuals. See AUTHORS.md for a complete list of contributors.

Acknowledgments

This package is a wrapper around the amazing wttr.in service created by Igor Chubin. Please be respectful of the wttr.in service by not making too many requests.