Add celestial_events_calendar.py for issue sumanth-0#618

aniruddhaadak80 · web-flow · commit 2e2200514ce8 · 2025-10-11T12:26:31.000+05:30
diff --git a/snippets/celestial_events_calendar/celestial_events_calendar.py b/snippets/celestial_events_calendar/celestial_events_calendar.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+"""
+Celestial Events Calendar
+Displays upcoming celestial events from a static dataset
+Created for issue #618
+"""
+
+from datetime import datetime, timedelta
+
+def get_celestial_events():
+    """Returns a list of celestial events with dates and details"""
+    events = [
+        {"date": "2025-10-25", "type": "Eclipse", "name": "Partial Solar Eclipse", 
+         "description": "Visible in North America", "visibility": "Regional"},
+        {"date": "2025-11-17", "type": "Meteor Shower", "name": "Leonids Meteor Shower", 
+         "description": "Peak viewing after midnight", "visibility": "Global"},
+        {"date": "2025-12-15", "type": "Meteor Shower", "name": "Geminids Meteor Shower", 
+         "description": "Best meteor shower of the year", "visibility": "Global"},
+        {"date": "2026-01-04", "type": "Meteor Shower", "name": "Quadrantids Meteor Shower", 
+         "description": "Active from late December to mid-January", "visibility": "Northern Hemisphere"},
+        {"date": "2026-02-17", "type": "Eclipse", "name": "Total Lunar Eclipse", 
+         "description": "Visible from Americas, Europe, and Africa", "visibility": "Multi-continental"},
+        {"date": "2026-03-20", "type": "Alignment", "name": "Spring Equinox", 
+         "description": "Equal day and night", "visibility": "Global"},
+        {"date": "2026-04-22", "type": "Meteor Shower", "name": "Lyrids Meteor Shower", 
+         "description": "One of the oldest known meteor showers", "visibility": "Global"},
+        {"date": "2026-05-06", "type": "Meteor Shower", "name": "Eta Aquarids Meteor Shower", 
+         "description": "Debris from Halley's Comet", "visibility": "Southern Hemisphere"},
+        {"date": "2026-06-21", "type": "Alignment", "name": "Summer Solstice", 
+         "description": "Longest day of the year in Northern Hemisphere", "visibility": "Global"},
+        {"date": "2026-08-12", "type": "Eclipse", "name": "Total Solar Eclipse", 
+         "description": "Path of totality crosses Greenland, Iceland, and Spain", "visibility": "Regional"},
+        {"date": "2026-08-13", "type": "Meteor Shower", "name": "Perseids Meteor Shower", 
+         "description": "Most popular meteor shower of the year", "visibility": "Global"},
+        {"date": "2026-09-22", "type": "Alignment", "name": "Autumn Equinox", 
+         "description": "Equal day and night", "visibility": "Global"},
+    ]
+    return events
+
+def filter_events_by_type(events, event_type=None):
+    """Filter events by type"""
+    if event_type:
+        return [e for e in events if e["type"].lower() == event_type.lower()]
+    return events
+
+def filter_events_by_date_range(events, start_date=None, end_date=None):
+    """Filter events within a date range"""
+    filtered = []
+    for event in events:
+        event_date = datetime.strptime(event["date"], "%Y-%m-%d")
+        if start_date and event_date < start_date:
+            continue
+        if end_date and event_date > end_date:
+            continue
+        filtered.append(event)
+    return filtered
+
+def display_events(events):
+    """Display celestial events in a formatted manner"""
+    if not events:
+        print("No events found matching your criteria.")
+        return
+    
+    print("\n" + "="*60)
+    print("UPCOMING CELESTIAL EVENTS".center(60))
+    print("="*60 + "\n")
+    
+    for event in events:
+        print(f"Date: {event['date']}")
+        print(f"Type: {event['type']}")
+        print(f"Event: {event['name']}")
+        print(f"Details: {event['description']}")
+        print(f"Visibility: {event['visibility']}")
+        print("-" * 60)
+
+def main():
+    """Main function to run the celestial events calendar"""
+    events = get_celestial_events()
+    
+    # Filter for upcoming events (from today onwards)
+    today = datetime.now()
+    upcoming_events = filter_events_by_date_range(events, start_date=today)
+    
+    print("\nWelcome to the Celestial Events Calendar!")
+    print(f"Current Date: {today.strftime('%Y-%m-%d')}\n")
+    
+    # Display all upcoming events
+    display_events(upcoming_events)
+    
+    # Example: Display only meteor showers
+    print("\n\nUPCOMING METEOR SHOWERS:")
+    meteor_showers = filter_events_by_type(upcoming_events, "Meteor Shower")
+    display_events(meteor_showers)
+
+if __name__ == "__main__":
+    main()
