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This example is provided by Kari Hoijarvi from WUSTL.

Download IronPython from http://www.codeplex.com/Wiki/View.aspx?ProjectName=IronPython

Save the following code into a file called sos2.py

to run the code:

  ipy
  >>>import sos2
  >>>sos2.test()

The sos2.py file:

import clr;
import System
clr.AddReferenceByPartialName("System.Data")
clr.AddReferenceByPartialName("System.Web")
clr.AddReferenceByPartialName("System.Xml")
from System import *
from System.IO import *
from System.Net import *
from System.Net.Sockets import *
from System.Text import *
from System.Xml import *

def test():
    query = Encoding.UTF8.GetBytes(
"""<?xml version="1.0" encoding="UTF-8"?>
<GetObservation xmlns="http://www.opengeospatial.net/sos"
    xmlns:gml="http://www.opengis.net/gml"
    xmlns:ogc="http://www.opengis.net/ogc"
    xmlns:ows="http://www.opengeospatial.net/ows"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.opengeospatial.net/sos 
http://mars.uni-muenster.de/swerep/trunk/sos/0.0.31/sosGetObservation.xsd"
    service="SOS" version="0.0.31">
   <offering>EO1H0410342004085110PY</offering>
<observedProperty>urn:ogc:def:phenomenon:OGC:1.0.30:hyperion_B021</observedProperty>

<observedProperty>urn:ogc:def:phenomenon:OGC:1.0.30:hyperion_B051</observedProperty>
   <resultFormat>application/zip</resultFormat>
</GetObservation>
""")
    req = HttpWebRequest.Create("http://test.geobliki.com/sos")
    req.Method = "POST"
    req.Credentials = NetworkCredential("some", "user")
    req.ContentType = "text/xml; charset=\"UTF-8\"";
    req.ContentLength = query.Length
    req.UserAgent = "IronPython"
    reqstm = req.GetRequestStream()
    reqstm.Write(query, 0, query.Length);
    rsp = req.GetResponse();
    try:
        print "============ begin headers =================="
        for h in rsp.Headers:
            print h + ": " + rsp.Headers[h]
        print "============ end headers =================="
        print "============ begin response =================="
        print ""
        print StreamReader(rsp.GetResponseStream()).ReadToEnd()
        print ""
        print "============ end of response =================="
    finally:
        print "closing response"
        rsp.Close()