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# -*- coding: utf-8 -*-
"""Python wrapper for geoname web APIs
created 20/03/2006 By Nicolas Laurance
This module allows you to access geoname's web APIs,
and get the results programmatically.
Described here:
http://www.geonames.org/export/
def postalCodeSearch(postalcode, placename='', country=COUNTRY, maxRows='10', http_proxy=None):
def postalCodeLookupJSON(postalcode, placename='', country=COUNTRY, maxRows='10',gcallback='', http_proxy=None):
def findNearbyPostalCodes(postalcode, placename='', country=COUNTRY, radius='5', maxRows='10',lat=None,lng=None, http_proxy=None):
def postalCodeCountryInfo(http_proxy=None):
def search(placename='', country=COUNTRY, maxRows='10', style='SHORT',lang=LANG, fclass=None, http_proxy=None):
def findNearbyPlaceName(lat,lng, http_proxy=None):
Sample usage:
>>> import geoname
>>> result=geoname.postalCodeSearch('35580','guichen','fr','10')
>>> result.totalResultsCount.PCDATA
u'1'
>>> result.code[0].lat.PCDATA
u'47.9666667'
>>> result.code[0].lng.PCDATA
u'-1.8'
"""
__author__ = "Nicolas Laurance (nlaurance@zindep.com)"
__version__ = "2.0"
__cvsversion__ = "$Revision: 2.0 $"[11:-2]
__date__ = "$Date: 2003/06/20 22:40:53 $"[7:-2]
__copyright__ = "Copyright (c) 2006 Nicolas Laurance"
__license__ = "Python"
import gnosis.xml.objectify as objectify
import os, sys, urllib, re
try:
import timeoutsocket # http://www.timo-tasi.org/python/timeoutsocket.py
timeoutsocket.setDefaultSocketTimeout(120)
except ImportError:
pass
HTTP_PROXY = None
DEBUG = 0
COUNTRY = 'FR'
LANG ='fr'
# don't touch the rest of these constants
class GeonameError(Exception): pass
## administrative functions
def version():
print """PyGeoname %(__version__)s
%(__copyright__)s
released %(__date__)s
""" % globals()
def setProxy(http_proxy):
"""set HTTP proxy"""
global HTTP_PROXY
HTTP_PROXY = http_proxy
def getProxy(http_proxy = None):
"""get HTTP proxy"""
return http_proxy or HTTP_PROXY
def getProxies(http_proxy = None):
http_proxy = getProxy(http_proxy)
if http_proxy:
proxies = {"http": http_proxy}
else:
proxies = None
return proxies
def _contentsOf(dirname, filename):
filename = os.path.join(dirname, filename)
if not os.path.exists(filename): return None
fsock = open(filename)
contents = fsock.read()
fsock.close()
return contents
def _getScriptDir():
if __name__ == '__main__':
return os.path.abspath(os.path.dirname(sys.argv[0]))
else:
return os.path.abspath(os.path.dirname(sys.modules[__name__].__file__))
class Bag: pass
_intFields = ('totalResultsCount')
_dateFields = ()
_listFields = ('code','geoname','country',)
_floatFields = ('lat','lng','distance')
def unmarshal(element):
#import pdb;pdb.set_trace()
xml_obj = objectify.XML_Objectify(element)
rc = xml_obj.make_instance()
return rc
def _do(url, http_proxy):
proxies = getProxies(http_proxy)
u = urllib.FancyURLopener(proxies)
usock = u.open(url)
rawdata = usock.read()
if DEBUG: print rawdata
usock.close()
data = unmarshal(rawdata)
return data
## main functions
def _buildfindNearbyPostalCodes(postalcode, placename, country, radius, maxRows ):
placename=urllib.quote(placename)
searchUrl = "http://ws.geonames.org/findNearbyPostalCodes?postalcode=%(postalcode)s&placename=%(placename)s&country=%(country)s&radius=%(radius)s&maxRows=%(maxRows)s" % vars()
return searchUrl
def _buildpostalCodeLookupJSON(postalcode,placename,country,maxRows,gcallback):
placename=urllib.quote(placename)
searchUrl = "http://ws.geonames.org/postalCodeLookupJSON?postalcode=%(postalcode)s&placename=%(placename)s&country=%(country)s&maxRows=%(maxRows)s&callback=%(gcallback)s" % vars()
return searchUrl
def _buildfindNearbyPostalCodesLL(lat,lng,radius,maxRows):
searchUrl = "http://ws.geonames.org/findNearbyPostalCodes?lat=%(lat)s&lng=%(lng)s&radius=%(radius)s&maxRows=%(maxRows)s" % vars()
return searchUrl
def _buildfindCountrySubdivision(lat,lng):
searchUrl = "http://ws.geonames.org/countrySubdivision?lat=%(lat)s&lng=%(lng)s" % vars()
return searchUrl
def _buildfindNearbyPlaceName(lat,lng):
searchUrl = "http://ws.geonames.org/findNearbyPlaceName?lat=%(lat)s&lng=%(lng)s" % vars()
return searchUrl
def _buildpostalCodeSearch(postalcode, placename, country, maxRows ):
placename=urllib.quote(placename)
searchUrl = "http://ws.geonames.org/postalCodeSearch?postalcode=%(postalcode)s&placename=%(placename)s&country=%(country)s&maxRows=%(maxRows)s" % vars()
return searchUrl
def _buildsearch(placename, country, maxRows,style,lang, fclass):
placename=urllib.quote(placename)
if fclass:
urlfclass=''
for fc in fclass:
urlfclass+=urllib.quote("&fclass=%s" % fc)
searchUrl = "http://ws.geonames.org/search?q=%(placename)s&country=%(country)s&maxRows=%(maxRows)s&lang=%(lang)s&style=%(style)s&fclass=%(fclass)s" % vars()
return searchUrl
def postalCodeSearch(postalcode, placename='', country=COUNTRY, maxRows='10', http_proxy=None):
"""
http://ws.geonames.org/postalCodeSearch?postalcode=35580&maxRows=10&country=fr
Url : ws.geonames.org/postalCodeSearch?
Parameters : postalcode ,placename,maxRows,country
<geonames>
<totalResultsCount>7</totalResultsCount>
-
<code>
<postalcode>35580</postalcode>
<name>St Senoux</name>
<countryCode>FR</countryCode>
<lat>47.9</lat>
<lng>-1.7833333</lng>
</code>
"""
url = _buildpostalCodeSearch(postalcode,placename,country,maxRows)
if DEBUG: print url
return _do(url,http_proxy)
def postalCodeLookupJSON(postalcode, placename='', country=COUNTRY, maxRows='10',gcallback='', http_proxy=None):
"""
Webservice Type : REST /JSON
Url : ws.geonames.org/postalCodeLookupJSON?
Parameters : postalcode,country ,maxRows (default = 20),callback
Result : returns a list of places for the given postalcode in JSON format
"""
url = _buildpostalCodeLookupJSON(postalcode,placename,country,maxRows,gcallback)
# print url
proxies = getProxies(http_proxy)
u = urllib.FancyURLopener(proxies)
usock = u.open(url)
rawdata = usock.read()
if DEBUG: print rawdata
usock.close()
return eval(rawdata[:-3])
def findNearbyPostalCodes(postalcode, placename='', country=COUNTRY, radius='5', maxRows='10',lat=None,lng=None, http_proxy=None):
"""
Find nearby postal codes / reverse geocoding
This service comes in two flavors. You can either pass the lat/long or a postalcode/placename.
Webservice Type : REST
Url : ws.geonames.org/findNearbyPostalCodes?
Parameters :
lat,lng, radius (in km), maxRows (default = 5),country (default = all countries)
or
postalcode,country, radius (in Km), maxRows (default = 5)
Result : returns a list of postalcodes and places for the lat/lng query as xml document
Example:
http://ws.geonames.org/findNearbyPostalCodes?postalcode=35580&placename=guichen&country=FR&radius=5
<geonames>
-
<code>
<postalcode>35580</postalcode>
<name>Guichen</name>
<countryCode>FR</countryCode>
<lat>47.9666667</lat>
<lng>-1.8</lng>
<distance>0.0</distance>
</code>
"""
if lat and lng :
url = _buildfindNearbyPostalCodesLL(lat,lng,radius,maxRows)
else:
url = _buildfindNearbyPostalCodes(postalcode,placename,country,radius,maxRows)
if DEBUG: print url
# import pdb;pdb.set_trace()
return _do(url,http_proxy).code
def postalCodeCountryInfo(http_proxy=None):
"""
http://ws.geonames.org/postalCodeCountryInfo?
<country>
<countryCode>FR</countryCode>
<countryName>France</countryName>
<numPostalCodes>39163</numPostalCodes>
<minPostalCode>01000</minPostalCode>
<maxPostalCode>98000</maxPostalCode>
</country>
"""
return _do("http://ws.geonames.org/postalCodeCountryInfo?",http_proxy).country
def search(placename='', country=COUNTRY, maxRows='10', style='SHORT',lang=LANG, fclass=None, http_proxy=None):
"""
Url : ws.geonames.org/search?
Parameters : q : place name (urlencoded utf8)
maxRows : maximal number of rows returned (default = 100)
country : iso country code, two characters (default = all countries)
fclass : featureclass(es) (default= all feature classes); this parameter may occur more then once, example: fclass=P&fclass=A
style : SHORT,MEDIUM,LONG (default = MEDIUM), verbosity of returned xml document
lang : ISO 2-letter language code. (default = en), countryName will be returned in the specified language.
http://ws.geonames.org/search?q=guichen&maxRows=10&style=SHORT&lang=fr&country=fr
<geonames>
<totalResultsCount>3</totalResultsCount>
-
<geoname>
<name>Laill�</name>
<lat>47.9833333</lat>
<lng>-1.7166667</lng>
</geoname>
"""
url = _buildsearch(placename, country, maxRows,style,lang, fclass)
if DEBUG: print url
return _do(url,http_proxy)
def findNearbyPlaceName(lat,lng, http_proxy=None):
"""
Webservice Type : REST
Url : ws.geonames.org/findNearbyPlaceName?
Parameters : lat,lng
Result : returns the closest populated place for the lat/lng query as xml document
Example:
http://ws.geonames.org/findNearbyPlaceName?lat=47.3&lng=9
"""
url = _buildfindNearbyPlaceName(lat,lng)
if DEBUG: print url
return _do(url,http_proxy)
def findCountrySubdivision(lat,lng, http_proxy=None):
"""
Webservice Type : REST
Url : ws.geonames.org/findNearbyPlaceName?
Parameters : lat,lng
Result : returns the closest populated place for the lat/lng query as xml document
Example:
http://ws.geonames.org/findNearbyPlaceName?lat=47.3&lng=9
"""
url = _buildfindCountrySubdivision(lat,lng)
if DEBUG: print url
return _do(url,http_proxy)
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