Add historical data for BitcoinAverage (via CSV)

plugins/exchange_rate.py

@@ -8,6 +8,7 @@ import sys
 from threading import Thread
 import time
 import traceback
+import csv
 from decimal import Decimal
 from functools import partial
 
@@ -43,6 +44,13 @@ class ExchangeBase(PrintError):
                                     headers={'User-Agent' : 'Electrum'})
         return response.json()
 
+    def get_csv(self, site, get_string):
+        url = "".join([self.protocol(), '://', site, get_string])
+        response = requests.request('GET', url,
+                                    headers={'User-Agent' : 'Electrum'})
+        reader = csv.DictReader(response.content.split('\n'))
+        return list(reader)
+
     def name(self):
         return self.__class__.__name__
 
@@ -90,6 +98,17 @@ class BitcoinAverage(ExchangeBase):
         return dict([(r, Decimal(json[r]['last']))
                      for r in json if r != 'timestamp'])
 
+    def history_ccys(self):
+        return ['AUD', 'BRL', 'CAD', 'CHF', 'CNY', 'EUR', 'GBP', 'IDR', 'ILS',
+                'MXN', 'NOK', 'NZD', 'PLN', 'RON', 'RUB', 'SEK', 'SGD', 'USD',
+                'ZAR']
+
+    def historical_rates(self, ccy):
+        history = self.get_csv('api.bitcoinaverage.com',
+                               "/history/%s/per_day_all_time_history.csv" % ccy)
+        return dict([(h['datetime'][:10], h['average'])
+                     for h in history])
+
 class BitcoinVenezuela(ExchangeBase):
     def get_rates(self, ccy):
         json = self.get_json('api.bitcoinvenezuela.com', '/')