GeoDataSim

World's most comprehensive city intelligence platform — geographic, socioeconomic, climate, and ML-powered analytics for 46+ world cities. World Bank integration, city similarity, ML clustering, interactive visualization, and automatic data updates. Zero API key required.

Installation

pip install geodatasim

Full extras (ML clustering, visualization, World Bank updates):

pip install "geodatasim[full]"

Quick Start

from geodatasim import City

istanbul = City("Istanbul")
print(istanbul.population)       # ~15,800,000
print(istanbul.gdp_per_capita)   # ~28,000 (USD)
print(istanbul.climate_zone)     # Mediterranean
print(istanbul.country)          # Turkey

# Find the 5 most similar cities worldwide
similar = istanbul.find_similar(n=5)
for city in similar:
    print(city.name, city.country)
# Athens, Greece
# Madrid, Spain
# ...

Features at a Glance

City Object

from geodatasim import City

city = City("Tokyo")

# Geographic
print(city.latitude, city.longitude)
print(city.country, city.continent)
print(city.timezone)               # Asia/Tokyo
print(city.elevation_m)            # 40

# Socioeconomic
print(city.population)             # ~13,960,000
print(city.gdp_per_capita)         # ~48,000
print(city.unemployment_rate)      # 2.4
print(city.hdi)                    # 0.919

# Climate
print(city.climate_zone)           # Humid subtropical
print(city.avg_temp_celsius)       # 15.4
print(city.annual_rainfall_mm)     # 1,528

# Infrastructure
print(city.internet_penetration)   # 0.94
print(city.airport_iata)           # HND / NRT

# City classification
print(city.city_type)              # Megacity

City Similarity

from geodatasim import City, CitySimilarity

city = City("Istanbul")

# 5 most similar cities (multi-indicator weighted cosine)
similar = city.find_similar(n=5)
for c in similar:
    print(f"{c.name:20s} {c.country:15s}")
# Athens               Greece
# Madrid               Spain
# Milan                Italy
# Barcelona            Spain
# Lisbon               Portugal

# Custom similarity with CitySimilarity directly
cs = CitySimilarity()
score = cs.compute("Istanbul", "Athens")
print(f"Similarity score: {score:.3f}")  # 0.921

# Compare a city to all others and rank
ranking = cs.rank_similar("Tokyo", top_n=10)

Batch Analysis

from geodatasim import BatchAnalyzer

# Compare multiple cities at once
analyzer = BatchAnalyzer(["Istanbul", "Paris", "Tokyo", "New York", "Singapore"])

# Get full DataFrame
df = analyzer.to_dataframe()
print(df[["city", "country", "population", "gdp_per_capita", "hdi"]].to_string(index=False))

# Export
analyzer.to_csv("city_comparison.csv")
analyzer.to_excel("city_comparison.xlsx")
analyzer.to_json("city_comparison.json")
analyzer.to_markdown("city_comparison.md")

City Rankings

from geodatasim import CityRankings, rank_cities

rankings = CityRankings()

# Rank by indicator
top_gdp = rankings.by_gdp_per_capita(n=10)
top_pop = rankings.by_population(n=5)
top_hdi = rankings.by_hdi(n=10)

print("Top 5 by GDP per capita:")
for i, city in enumerate(top_gdp[:5], 1):
    print(f"  {i}. {city.name:20s} ${city.gdp_per_capita:,.0f}")

# Quick function
top5 = rank_cities(indicator="internet_penetration", n=5)

ML Clustering

from geodatasim import CityClustering, cluster_cities, BatchAnalyzer

# Build DataFrame of all cities
df = BatchAnalyzer.all_cities().to_dataframe()

# Cluster into 5 groups
clustering = CityClustering(n_clusters=5)
clustering.fit(df)

print(clustering.cluster_labels_)
# {'Istanbul': 2, 'Paris': 3, 'Tokyo': 4, 'Lagos': 0, ...}

# Get cities in same cluster as Istanbul
cluster_id = clustering.cluster_labels_["Istanbul"]
peers = clustering.get_cluster(cluster_id)
print(f"Istanbul's cluster: {peers}")

# Quick shortcut
groups = cluster_cities(n_clusters=4)

Fast Similarity (ML-Powered)

from geodatasim import FastSimilarityEngine, find_similar_fast

engine = FastSimilarityEngine()
engine.build_index()   # builds ANN index once

# Lightning-fast nearest neighbors
similar = engine.find_similar("London", n=5)

# Or use the shortcut
results = find_similar_fast("Berlin", n=8)
for city_name, score in results:
    print(f"  {city_name:20s}  score={score:.3f}")

Visualization

from geodatasim import CityVisualizer, BatchAnalyzer

df = BatchAnalyzer.all_cities().to_dataframe()
viz = CityVisualizer()

# Scatter plot: GDP vs Population
fig = viz.scatter(df, x="gdp_per_capita", y="population", color="continent", size="hdi")
fig.show()

# Heatmap of all numeric indicators
heatmap = viz.heatmap(df)
heatmap.show()

# Radar chart comparing 3 cities
radar = viz.radar(
    ["Istanbul", "Singapore", "Amsterdam"],
    indicators=["gdp_per_capita", "hdi", "internet_penetration"]
)
radar.show()

# Quick functions
from geodatasim import quick_scatter, quick_heatmap, quick_radar
quick_scatter(df, "population", "gdp_per_capita").show()

World Bank Auto-Update

from geodatasim.core.updater import UpdateEngine, update_city_data

# Update a single city from World Bank API
istanbul_data = {"name": "Istanbul", "country_code": "TUR"}
updated = update_city_data(istanbul_data)
print(f"Updated GDP: ${updated['gdp_per_capita']:,.0f}")

# Batch update all cities
engine = UpdateEngine()
engine.update_all()   # fetches World Bank data for all cities
engine.save()         # writes updated dataset to cache

Data Validation

from geodatasim.core.validator import CityModel, validate_city_data

# Validate raw data against the City schema (Pydantic)
raw = {
    "name": "Testville",
    "country": "Testland",
    "population": 1_000_000,
    "gdp_per_capita": 25000,
    "latitude": 40.0,
    "longitude": 29.0,
}
city = validate_city_data(raw)
print(city)  # CityModel instance with type-safe fields

Economic & Climate Profiles

from geodatasim import City, EconomicIndicators, ClimateProfile

city = City("Singapore")

econ: EconomicIndicators = city.economic_indicators
print(econ.gdp_per_capita)
print(econ.unemployment_rate)
print(econ.hdi)
print(econ.gini_coefficient)

climate: ClimateProfile = city.climate_profile
print(climate.zone)              # Tropical rainforest
print(climate.avg_temp_celsius)
print(climate.annual_rainfall_mm)
print(climate.humidity_pct)

Full Pipeline Example

from geodatasim import City, BatchAnalyzer, CityRankings, CityClustering

# 1. Load all cities into DataFrame
df = BatchAnalyzer.all_cities().to_dataframe()

# 2. Cluster into 4 economic groups
clustering = CityClustering(n_clusters=4)
clustering.fit(df)

# 3. Rank within Istanbul's cluster
istanbul_cluster = clustering.get_cluster(clustering.cluster_labels_["Istanbul"])
ranked = CityRankings().by_gdp_per_capita(cities=istanbul_cluster)
print("Istanbul's economic peer group (ranked by GDP):")
for i, c in enumerate(ranked, 1):
    print(f"  {i}. {c.name:20s} ${c.gdp_per_capita:>8,.0f}")

# 4. Find Istanbul's top 3 similar cities
istanbul = City("Istanbul")
print("\nMost similar cities:")
for c in istanbul.find_similar(3):
    print(f"  {c.name} ({c.country})")

Data Sources

All data from public domain sources:

• World Bank Open Data — GDP, population, HDI
• REST Countries — country metadata
• Open-Meteo — climate data

License

MIT — Teyfik Öz