short script that uses Yahoo!'s Weather API to retrieve the weather conditions for the given location

yahooweather.rb

#!/usr/bin/env ruby
#---------------------------------
# Yahoo weather app using YQL/JSON
#---------------------------------
# based off of https://www.tropo.com/docs/scripting/t_ruby-yahooweather.htm
require 'rubygems'
require 'open-uri'
require 'json'

#Set the URI and our YQL select statement, then encode as a URI
yahoo_url = 'http://query.yahooapis.com/v1/public/yql?format=json&env=store://datatables.org/alltableswithkeys&q='
yql_statement = 'select * from weather.bylocation where location="' + ARGV.join(" ") + '"'

url = URI.encode(yahoo_url + yql_statement)

#Fetch the JSON from the YQL API and convert the resulting 
#JSON data to a Ruby hash
weather_data = JSON.parse(open(url).read)

#Get the relevant weather channel details and throw them into a hash
weather_results = weather_data["query"]["results"]["weather"]["rss"]["channel"]

#Print the results
#The sleep calls are present because some IRC clients will display messages by the timestamp received
#this causes the messages to look out of order
if weather_results["description"] != "Yahoo! Weather Error"
    puts "Yahoo! weather results for #{weather_results["location"]["city"]}, #{weather_results["location"]["country"]}"
    sleep 1
    puts "The temperature (including wind chill) is #{weather_results["wind"]["chill"]} degrees #{weather_results["units"]["temperature"]}, " + 
         "the wind speed is #{weather_results["wind"]["speed"]} #{weather_results["units"]["speed"]}" 
    sleep 1
    puts "The forecast is #{weather_results["item"]["forecast"][0]["text"]}, " +
         "with a high of #{weather_results["item"]["forecast"][0]["high"]} degrees #{weather_results["units"]["temperature"]}, " +
         "and a low of #{weather_results["item"]["forecast"][0]["low"]} degrees #{weather_results["units"]["temperature"]}."
else
    puts "Invalid Location or Location Not Found. Please try again."
end