Merge branch 'AntouanK-modules/fx-currency'

bumblebee/modules/currency.py

@@ -0,0 +1,59 @@
+# -*- coding: UTF-8 -*-
+# pylint: disable=C0111,R0903
+
+"""Displays currency exchange rates. Currently, displays currency between GBP and USD/EUR only.
+
+Requires the following python packages:
+    * requests
+
+Parameters:
+    * currency.interval: Interval in minutes between updates, default is 1.
+
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+import json
+import time
+try:
+    import requests
+    from requests.exceptions import RequestException
+except ImportError:
+    pass
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        super(Module, self).__init__(engine, config,
+            bumblebee.output.Widget(full_text=self.price)
+        )
+        self._price = "-"
+        self._interval = int(self.parameter("interval", "1"))
+        self._nextcheck = 0
+        self._valid = False
+
+    def price(self, widget):
+        if not self._valid:
+            return u"?"
+        return self._price
+
+    def update(self, widgets):
+        timestamp = int(time.time())
+        if self._nextcheck < int(time.time()):
+            try:
+                self._nextcheck = int(time.time()) + self._interval*60
+                price_url = "http://api.fixer.io/latest?symbols=USD,EUR&base=GBP" 
+                try:
+                    price_json = json.loads( requests.get(price_url).text )
+                    gbpeur = str(price_json['rates']['EUR'])
+                    gbpusd = str(price_json['rates']['USD'])
+                except ValueError:
+                    gbpeur = "-"
+                    gbpusd = "-"
+
+                self._price = u"£/€ " + gbpeur + u" | £/$ " + gbpusd
+                self._valid = True
+            except RequestException:
+                self._price = u"£/€ - | £/$ -"
+                self._valid = True
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
+