Merge pull request #121 from quartje/master

Add error handling and the ability to change currencies for the getcrypto module

bumblebee/modules/getcrypto.py

@@ -10,6 +10,7 @@ Parameters:
     * getcrypto.getbtc: 0 for not getting price of BTC, 1 for getting it (default).
     * getcrypto.geteth: 0 for not getting price of ETH, 1 for getting it (default).
     * getcrypto.getltc: 0 for not getting price of LTC, 1 for getting it (default).
+    * getcrypto.getcur: Set the currency to display the price in, usd is the default.
 """
 
 import requests
@@ -17,18 +18,23 @@ import time
 import bumblebee.input
 import bumblebee.output
 import bumblebee.engine
-
-def getfromkrak(coin):
+from requests.exceptions import RequestException
+def getfromkrak(coin,currency):
     if coin=='Btc':
-        epair = "xbtusd"
-        tickname = "XXBTZUSD"
+        epair = "xbt"+currency
+        tickname = "XXBTZ"+currency.upper()
     if coin=='Eth':
-        epair = "ethusd"
-        tickname = "XETHZUSD"
+        epair = "eth"+currency
+        tickname = "XETHZ"+currency.upper()
     if coin=='Ltc':
-        epair = "ltcusd"
-        tickname = "XLTCZUSD"
-    krakenget = requests.get('https://api.kraken.com/0/public/Ticker?pair='+epair).json()
+        epair = "ltc"+currency
+        tickname = "XLTCZ"+currency.upper()
+    try:
+        krakenget = requests.get('https://api.kraken.com/0/public/Ticker?pair='+epair).json()
+    except RequestException:
+        return "No connection"
+    except Exception:
+        return "No connection"
     kethusdask = float(krakenget['result'][tickname]['a'][0])
     kethusdbid = float(krakenget['result'][tickname]['b'][0])
     return coin+": "+str((kethusdask+kethusdbid)/2)[0:6]
@@ -45,6 +51,7 @@ class Module(bumblebee.engine.Module):
         self._getbtc = int(self.parameter("getbtc", "1"))
         self._geteth = int(self.parameter("geteth", "1"))
         self._getltc = int(self.parameter("getltc", "1"))
+        self._getcur = self.parameter("getcur", "usd")
         engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
             cmd="xdg-open https://cryptowat.ch/")
 
@@ -54,13 +61,14 @@ class Module(bumblebee.engine.Module):
     def update(self, widgets):
         if self._nextcheck < int(time.time()):
             self._nextcheck = int(time.time()) + self._interval
+            currency = self._getcur
             btcprice, ethprice, ltcprice = "", "", ""
             if self._getbtc==1:
-                btcprice= getfromkrak('Btc')
+                btcprice= getfromkrak('Btc',currency)
             if self._geteth==1:
-                ethprice=getfromkrak('Eth')
+                ethprice=getfromkrak('Eth',currency)
             if self._getltc==1:
-                ltcprice=getfromkrak('Ltc')
+                ltcprice=getfromkrak('Ltc',currency)
             self._curprice = btcprice+" "*(self._getbtc*self._geteth)+ethprice+" "*(self._getltc*max(self._getbtc, self._geteth))+ltcprice
 
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