Daedalus

import urllib, httplib, sys

def main():
    query=urllib.urlencode({'q':sys.argv[1]})

    start='<h2 class=r style="font-size:138%"><b>'
    end='</b>'

    google=httplib.HTTPConnection("www.google.com")
    google.request("GET","/search?"+query)
    search=google.getresponse()
    data=search.read()

    if data.find(start)==-1: print "Google Calculator results not found."
    else:
        begin=data.index(start)
        result=data[begin+len(start):begin+data[begin:].index(end)]
        result = result.replace("<font size=-2> </font>",",").replace(" &#215; 10<sup>","E").replace("</sup>","")
        return result
if __name__ == "__main__":
    print main()