/usr/lib/python3/dist-packages/geopy/geocoders/yandex.py is in python3-geopy 1.11.0+ds1-1.
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:class:`Yandex` geocoder.
"""
from geopy.compat import urlencode
from geopy.geocoders.base import Geocoder, DEFAULT_TIMEOUT
from geopy.location import Location
from geopy.exc import (
GeocoderServiceError,
GeocoderParseError
)
from geopy.util import logger
__all__ = ("Yandex", )
class Yandex(Geocoder): # pylint: disable=W0223
"""
Yandex geocoder, documentation at:
http://api.yandex.com/maps/doc/geocoder/desc/concepts/input_params.xml
"""
def __init__(
self,
api_key=None,
lang=None,
timeout=DEFAULT_TIMEOUT,
proxies=None,
user_agent=None,
):
"""
Create a Yandex-based geocoder.
.. versionadded:: 1.5.0
:param string api_key: Yandex API key (not obligatory)
http://api.yandex.ru/maps/form.xml
:param string lang: response locale, the following locales are
supported: "ru_RU" (default), "uk_UA", "be_BY", "en_US", "tr_TR"
:param int timeout: Time, in seconds, to wait for the geocoding service
to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
exception.
:param dict proxies: If specified, routes this geocoder's requests
through the specified proxy. E.g., {"https": "192.0.2.0"}. For
more information, see documentation on
:class:`urllib2.ProxyHandler`.
"""
super(Yandex, self).__init__(
scheme='http', timeout=timeout, proxies=proxies, user_agent=user_agent
)
self.api_key = api_key
self.lang = lang
self.api = 'http://geocode-maps.yandex.ru/1.x/'
def geocode(self, query, exactly_one=True, timeout=None): # pylint: disable=W0221
"""
Geocode a location query.
:param string query: The address or query you wish to geocode.
:param bool exactly_one: Return one result or a list of results, if
available.
:param int timeout: Time, in seconds, to wait for the geocoding service
to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
exception. Set this only if you wish to override, on this call
only, the value set during the geocoder's initialization.
"""
params = {
'geocode': query,
'format': 'json'
}
if not self.api_key is None:
params['key'] = self.api_key
if not self.lang is None:
params['lang'] = self.lang
if exactly_one is True:
params['results'] = 1
url = "?".join((self.api, urlencode(params)))
logger.debug("%s.geocode: %s", self.__class__.__name__, url)
return self._parse_json(
self._call_geocoder(url, timeout=timeout),
exactly_one,
)
def reverse(
self,
query,
exactly_one=False,
timeout=None,
):
"""
Given a point, find an address.
:param string query: The coordinates for which you wish to obtain the
closest human-readable addresses.
:type query: :class:`geopy.point.Point`, list or tuple of (latitude,
longitude), or string as "%(latitude)s, %(longitude)s"
:param boolean exactly_one: Return one result or a list of results, if
available.
:param int timeout: Time, in seconds, to wait for the geocoding service
to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
exception.
"""
try:
lat, lng = [
x.strip() for x in
self._coerce_point_to_string(query).split(',')
]
except ValueError:
raise ValueError("Must be a coordinate pair or Point")
params = {
'geocode': '{0},{1}'.format(lng, lat),
'format': 'json'
}
if self.api_key is not None:
params['key'] = self.api_key
if self.lang is not None:
params['lang'] = self.lang
url = "?".join((self.api, urlencode(params)))
logger.debug("%s.reverse: %s", self.__class__.__name__, url)
return self._parse_json(
self._call_geocoder(url, timeout=timeout),
exactly_one
)
def _parse_json(self, doc, exactly_one):
"""
Parse JSON response body.
"""
if doc.get('error'):
raise GeocoderServiceError(doc['error']['message'])
try:
places = doc['response']['GeoObjectCollection']['featureMember']
except KeyError:
raise GeocoderParseError('Failed to parse server response')
def parse_code(place):
"""
Parse each record.
"""
try:
place = place['GeoObject']
except KeyError:
raise GeocoderParseError('Failed to parse server response')
longitude, latitude = [
float(_) for _ in place['Point']['pos'].split(' ')
]
location = place.get('description')
return Location(location, (latitude, longitude), place)
if exactly_one:
try:
return parse_code(places[0])
except IndexError:
return None
else:
return [parse_code(place) for place in places]
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