pygeocode 0.0.5

pygeocode -- Wrapper for several public geocoding APIs

Description

pygeocode leverages multiple public geocoding APIs including Google’s Geocoding API and Yahoo’s Place Finder. Having several APIs available is specially useful when the user has reached one API’s rate limit or when an API returns ambiguous results, or no results at all.

Installation

Install using pip:

pip install pyusps

or easy_install:

easy_install pyusps

Examples

Using Google’s Geocoding API:

from pygeocode import geocoder

address = '1600 Amphitheatre Pkwy, Mountain View, CA'
res = geocoder.geocode_google(address)
print res['lat'], res['lng']

Using Yahoo’s Place Finder API:

from pygeocode import geocoder

app_id = <you_app_id>
address = '1600 Amphitheatre Pkwy, Mountain View, CA'
res = geocoder.geocode_yahoo(address, app_id)
print res['lat'], res['lng']

Full example:

import optparse
import functools
import logging

from pygeocode import geocoder

log = logging.getLogger(__name__)

def main(address, appid=None):
    yahoo_geocoder = functools.partial(
        geocoder.geocode_yahoo,
        appid=appid,
        )
    geocoders = [yahoo_geocoder, geocoder.geocode_google]
    for geocoder_ in geocoders:
        try:
            res = geocoder_(address)
        except geocoder.GeocoderError, e:
            log.error(str(e))
        else:
            return res

if __name__ == '__main__':
    parser = optparse.OptionParser(
        usage='%prog ADDRESS [OPTS]',
        )
    parser.add_option(
        '--yahoo-appid',
        help='The Yahoo Application ID to be used in the API call',
        )
    parser.add_option(
        '-v', '--verbose',
        help='Verbose mode [default %default]',
        action="store_true", dest="verbose"
        )
    parser.set_defaults(
        verbose=False,
        )

    options, args = parser.parse_args()
    try:
        (address,) = args
    except ValueError:
        parser.error('Wrong number of arguments.')

    logging.basicConfig(
        level=logging.DEBUG if options.verbose else logging.INFO,
        format='%(asctime)s.%(msecs)03d %(name)s: %(levelname)s: %(message)s',
        datefmt='%Y-%m-%dT%H:%M:%S',
        )

    res = main(address, appid=options.yahoo_appid)

    if res:
        out = '"{address}" is at coordinates {lat},{lng}'.format(
            address=address,
            lat=res['lat'],
            lng=res['lng'],
            )
    else:
        out = 'No results found for "{address}"'.format(
            address=address,
            )

    print out

Developing

External dependencies

• python-dev

• python-setuptools

• python-virtualenv

Setup

To start developing run the following commands from the project’s base directory. You can download the source from https://github.com/thelinuxkid/pygeocode:

# I like to install the virtual environment in a hidden repo.
virtualenv .virtual
# I leave the magic to Ruby developers (.virtual/bin/activate)
.virtual/bin/python setup.py develop
# At this point, pygeocode will already be in easy-install.pth.
# So, pip will not attempt to download it
.virtual/bin/pip install pygeocode[test]

If you like to use ipython you can install it with the dev requirement:

.virtual/bin/pip install pygeocode[dev]

Testing

To run the unit-tests run the following command from the project’s base directory:

.virtual/bin/nosetests