[modules/getcrypto] Deal with kraken service downtime

see #222

bumblebee/engine.py

@@ -40,6 +40,7 @@ class Module(object):
         self.id = self.name
         self._next = int(time.time())
         self._default_interval = 0
+        self.success = True
 
         self._configFile = None
         for cfg in [os.path.expanduser("~/.bumblebee-status.conf"), os.path.expanduser("~/.config/bumblebee-status.conf")]:
@@ -80,7 +81,12 @@ class Module(object):
     def update_wrapper(self, widgets):
         if self._next > int(time.time()):
             return
-        self.update(self._widgets)
+        try:
+            self.update(self._widgets)
+            self.success = True
+        except Exception as e:
+            log.error("failed to update module {}: {}".format(self.name, str(e)))
+            self.success = False
         self._next += int(self.parameter("interval", self._default_interval))*60
 
     def interval(self, intvl):

bumblebee/modules/getcrypto.py

@@ -34,6 +34,8 @@ def getfromkrak(coin, currency):
         krakenget = requests.get('https://api.kraken.com/0/public/Ticker?pair='+epair).json()
     except (RequestException, Exception):
         return "No connection"
+    if not 'result' in krakenget:
+        return "No data"
     kethusdask = float(krakenget['result'][tickname]['a'][0])
     kethusdbid = float(krakenget['result'][tickname]['b'][0])
     return coin+": "+str((kethusdask+kethusdbid)/2)[0:6]

bumblebee/output.py

@@ -117,7 +117,7 @@ class I3BarOutput(object):
             })
         width = self._theme.minwidth(widget)
         self._widgets.append({
-            u"full_text": full_text,
+            u"full_text": full_text
             "color": self._theme.fg(widget),
             "background": self._theme.bg(widget),
             "separator_block_width": self._theme.separator_block_width(widget),