xiangmeng4geo/geocoder

:earth_asia: Python Geocoder

Python Geocoder

Simple and consistent geocoding library written in Python.

Many online providers such as Google & Bing have geocoding services, these providers do not include Python libraries and have different JSON responses between each other.

It can be very difficult sometimes to parse a particular geocoding provider since each one of them have their own JSON schema.

Here is a typical example of retrieving a Lat & Lng from Google using Python, things shouldn't be this hard.

>>> import requests
>>> url = 'https://maps.googleapis.com/maps/api/geocode/json'
>>> params = {'sensor': 'false', 'address': 'Mountain View, CA'}
>>> r = requests.get(url, params=params)
>>> results = r.json()['results']
>>> location = results[0]['geometry']['location']
>>> location['lat'], location['lng']
(37.3860517, -122.0838511)

Now lets use Geocoder to do the same task

>>> import geocoder
>>> g = geocoder.google('Mountain View, CA')
>>> g.latlng
(37.3860517, -122.0838511)

A Work is In Progress to support multiple results

>>> import geocoder
>>> g = geocoder.geonames('Mountain View, CA', maxRows=5)
>>> print(len(g))
5
>>> for result in g:
...   print(result.address, result.latlng)
...
Mountain View ['37.38605', '-122.08385']
Mountain View Elementary School ['34.0271', '-117.59116']
Best Western Plus Mountainview Inn and Suites ['51.79516', '-114.62793']
Best Western Mountainview Inn ['49.3338', '-123.1446']
Mountain View Post Office ['37.393', '-122.07774']

More details are available in the documentation

Documentation

geocoder.readthedocs.org

API Overview

Many properties are available once the geocoder object is created.

Forward

>>> import geocoder
>>> g = geocoder.google('Mountain View, CA')
>>> g.geojson
>>> g.json
>>> g.wkt
>>> g.osm

WIP SideNote / multiple results**

For the providers currently supporting multiple results (see table below), the geojson property called on g will not apply to the best match but to all results. See documentation for more details on this.

Reverse

>>> g = geocoder.google([45.15, -75.14], method='reverse')
>>> g.city
>>> g.state
>>> g.state_long
>>> g.country
>>> g.country_long

House Addresses

>>> g = geocoder.google("453 Booth Street, Ottawa ON")
>>> g.housenumber
>>> g.postal
>>> g.street
>>> g.street_long

IP Addresses

>>> g = geocoder.ip('199.7.157.0')
>>> g = geocoder.ip('me')
>>> g.latlng
>>> g.city

Bounding Box

Accessing the JSON & GeoJSON attributes will be different

>>> g = geocoder.google("Ottawa")
>>> g.bbox
{"northeast": [45.53453, -75.2465979], "southwest": [44.962733, -76.3539158]}

>>> g.geojson['bbox']
[-76.3539158, 44.962733, -75.2465979, 45.53453]

>>> g.southwest
[44.962733, -76.3539158]

Command Line Interface

$ geocode "Ottawa, ON"  >> ottawa.geojson
$ geocode "Ottawa, ON" \
    --provide google \
    --out geojson \
    --method geocode

Providers

Provider	Optimal	Usage Policy	Mutiple results	Reverse	Proximity
ArcGIS	World		yes	yes
Baidu	China	API key		yes
Bing	World	API key	yes	yes
CanadaPost	Canada	API key
FreeGeoIP	World
Gaode	China	API key		yes
Geocoder.ca	CA & US	Rate Limit
GeocodeFarm	World	Policy		yes
GeoNames	World	Username	yes		yes
GeoOttawa	Ottawa
Google	World	Rate Limit, Policy	yes	yes	yes
HERE	World	API key		yes
IPInfo	World	Paid Plans
Mapbox	World	API key	yes	yes	yes
MapQuest	World	API key	yes	yes
Mapzen	World	API key		yes
MaxMind	World
OpenCage	World	API key		yes
OpenStreetMap	World	Policy	yes	yes
Tamu	US	API key
TomTom	World	API key
What3Words	World	API key	N.A	yes
Yahoo	World
Yandex	Russia			yes
TGOS	Taiwan

Installation

PyPi Install

To install Geocoder, simply:

$ pip install geocoder
...

GitHub Install

Installing the latest version from Github:

$ git clone https://github.com/DenisCarriere/geocoder
...
$ cd geocoder
$ python setup.py install
...

Snap Install

To install the stable geocoder snap in any of the supported Linux distros:

$ sudo snap install geocoder
...

If you want to help testing the latest changes from the master branch, you can install it from the edge channel:

$ sudo snap install geocoder --edge
...

The installed snap will be updated automatically every time a new version is pushed to the store.

Twitter

Speak up on Twitter @DenisCarriere and tell me how you use this Python Geocoder. New updates will be pushed to Twitter Hashtags #python.

Feedback

Please feel free to give any feedback on this module. If you find any bugs or any enhancements to recommend please send some of your comments/suggestions to the Github Issues Page.