bf53c5912c
The "base" currency can now be configured using the parameter "source", and the "symbols" to be resolved can be configured using the parameter "destination", which is a comma-separated list. see #169
64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
# -*- coding: UTF-8 -*-
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# pylint: disable=C0111,R0903
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"""Displays currency exchange rates. Currently, displays currency between GBP and USD/EUR only.
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Requires the following python packages:
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* requests
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Parameters:
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* currency.interval: Interval in minutes between updates, default is 1.
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* currency.source: Source currency (defaults to "GBP")
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* currency.destination: Comma-separated list of destination currencies (defaults to "USD,EUR")
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Note: source and destination names right now must correspond to the names used by the API of http://fixer.io
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"""
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import bumblebee.input
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import bumblebee.output
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import bumblebee.engine
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import json
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import time
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try:
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import requests
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from requests.exceptions import RequestException
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except ImportError:
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pass
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SYMBOL = {
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"GBP": u"£", "EUR": u"€", "USD": u"$"
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}
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class Module(bumblebee.engine.Module):
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def __init__(self, engine, config):
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super(Module, self).__init__(engine, config,
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bumblebee.output.Widget(full_text=self.price)
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)
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self._data = {}
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self._interval = int(self.parameter("interval", 1))
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self._base = self.parameter("source", "GBP")
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self._symbols = self.parameter("destination", "USD,EUR")
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self._nextcheck = 0
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def price(self, widget):
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if self._data == {}:
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return "?"
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rates = []
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for sym in self._data["rates"]:
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rates.append(u"{}{}".format(self._data["rates"][sym], SYMBOL[sym] if sym in SYMBOL else sym))
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return u"{}: {}".format(SYMBOL[self._base] if self._base in SYMBOL else self._base, u"/".join(rates))
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def update(self, widgets):
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timestamp = int(time.time())
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if self._nextcheck < int(time.time()):
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self._data = {}
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self._nextcheck = int(time.time()) + self._interval*60
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url = "http://api.fixer.io/latest?symbols={}&base={}".format(self._symbols, self._base)
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try:
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self._data = json.loads(requests.get(url).text)
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except Exception:
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pass
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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