Projects

CurrencyConverter.py

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+""" 
+----------------------------------------
+Currency Converter
+----------------------------------------
+This is a straightforward project with a simple GUI. 
+The name quite evidently describes the role of the 
+project is to convert currencies from one unit into another. 
+For example, converting Indian rupee to USD or euro. Tkinter, 
+the standard Python interface can be used to design and develop 
+this application. 
+----------------------------------------
+"""
+
+import urllib.request
+import json
+
+def currency_converter(currency_from, currency_to, currency_input):
+    yql_base_url = "https://query.yahooapis.com/v1/public/yql"
+    yql_query = 'select%20*%20from%20yahoo.finance.xchange%20where%20pair' \
+                '%20in%20("'+currency_from+currency_to+'")'
+    yql_query_url = yql_base_url + "?q=" + yql_query + "&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys"
+    try:
+        yql_response = urllib.request.urlopen(yql_query_url)
+        try:
+            json_string = str(yql_response.read())
+            json_string = json_string[2:]
+            json_string = json_string[:-1]
+            print(json_string)
+            yql_json = json.loads(json_string)
+            last_rate = yql_json['query']['results']['rate']['Rate']
+            currency_output = currency_input * float(last_rate)
+            return currency_output
+        except (ValueError, KeyError, TypeError):
+            print(yql_query_url)
+            return "JSON format error"
+    except IOError as e:
+        print(str(e))
+
+currency_input = 1
+
+# currency codes : http://en.wikipedia.org/wiki/ISO_4217
+
+currency_from = "USD"
+currency_to = "TRY"
+rate = currency_converter(currency_from, currency_to, currency_input)
+print(rate)