# -*- coding: utf-8 -*-
# Copyright (c) 2013 Jendrik Poloczek
# Copyright (c) 2013 Tao Sauvage
# Copyright (c) 2014 Aborilov Pavel
# Copyright (c) 2014 Sean Vig
# Copyright (c) 2014-2015 Tycho Andersen
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from . import base
from .generic_poll_text import GenPollUrl
import locale
[docs]class BitcoinTicker(GenPollUrl):
"""
A bitcoin ticker widget, data provided by the btc-e.com API. Defaults to
displaying currency in whatever the current locale is. Examples:
::
# display the average price of bitcoin in local currency
widget.BitcoinTicker(format="BTC: {avg}")
# display the average price of litecoin in local currency
widget.BitcoinTicker(format="LTC: {avg}", source_currency='ltc')
# display the average price of litecoin in bitcoin
widget.BitcoinTicker(format="BTC: ฿{avg}", source_currency='ltc', currency='btc', round=False)
"""
QUERY_URL = "https://btc-e.com/api/2/%s_%s/ticker"
orientations = base.ORIENTATION_HORIZONTAL
defaults = [
('currency', locale.localeconv()['int_curr_symbol'].strip(),
'The currency the value that bitcoin is displayed in'),
('source_currency', 'btc',
'The source currency to convert from'),
('round', True, 'whether or not to use locale.currency to round the values'),
('format', 'BTC Buy: {buy}, Sell: {sell}',
'Display format, allows buy, sell, high, low, avg, '
'vol, vol_cur, last, variables.'),
]
def __init__(self, **config):
GenPollUrl.__init__(self, **config)
self.add_defaults(BitcoinTicker.defaults)
@property
def url(self):
return self.QUERY_URL % (self.source_currency.lower(), self.currency.lower())
def parse(self, body):
formatted = {}
if 'error' in body and body['error'] == "invalid pair":
locale.setlocale(locale.LC_MONETARY, "en_US.UTF-8")
self.currency = locale.localeconv()['int_curr_symbol'].strip()
body = self.fetch(self.url)
for k, v in body['ticker'].items():
formatted[k] = v
if self.round:
formatted[k] = locale.currency(v)
return self.format.format(**formatted)