3638aa2420
Use generic interval mechanism in most of the modules that use slow updates. Only exception: getcrypto, as the interval is specified in seconds there and I want to retain backwards-compatibility. fixes #220
68 lines
2.4 KiB
Python
68 lines
2.4 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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* currency.sourceformat: String format for source formatting; Defaults to "{}: {}" and has two variables,
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the base symbol and the rate list
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* currency.destinationdelimiter: Delimiter used for separating individual rates (defaults to "|")
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Note: source and destination names right now must correspond to the names used by the API of https://markets.ft.com
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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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try:
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import requests
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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"$", "JPY": u"¥"
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}
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API_URL = "https://markets.ft.com/data/currencies/ajax/conversion?baseCurrency={}&comparison={}"
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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(1)
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self._base = self.parameter("source", "GBP")
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self._symbols = self.parameter("destination", "USD,EUR").split(",")
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self._nextcheck = 0
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def price(self, widget):
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if len(self._data) == 0:
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return "?"
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rates = []
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for sym, rate in self._data:
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rates.append(u"{}{}".format(rate, SYMBOL[sym] if sym in SYMBOL else sym))
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basefmt = u"{}".format(self.parameter("sourceformat", "{}: {}"))
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ratefmt = u"{}".format(self.parameter("destinationdelimiter", "|"))
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return basefmt.format(SYMBOL[self._base] if self._base in SYMBOL else self._base, ratefmt.join(rates))
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def update(self, widgets):
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self._data = []
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for symbol in self._symbols:
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url = API_URL.format(self._base, symbol)
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try:
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response = requests.get(url).json()
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self._data.append((symbol, response['data']['exchangeRate']))
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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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