Source code for

# Copyright(C) 2010-2016 Romain Bignon
# This file is part of woob.
# woob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# woob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with woob. If not, see <>.

from decimal import Decimal

from woob.capabilities.base import (
    BaseObject, StringField, DecimalField, Currency,
from import DateField

__all__ = [
    'Rate', 'CapCurrencyRate',

[docs]class Rate(BaseObject, Currency): """ Currency exchange rate. """ currency_from = StringField('The currency to which exchange rates are relative to') currency_to = StringField('The currency is converted to') value = DecimalField('Exchange rate') datetime = DateField('Collection date and time') def __repr__(self): return "<%s from=%r to=%r value=%r>" % ( type(self).__name__, self.currency_from, self.currency_to, self.value, )
[docs] def convert(self, amount): if isinstance(amount, float): amount = Decimal(str(amount)) return amount * self.value
[docs]class CapCurrencyRate(Capability): """ Capability of bank websites to get currency exchange rates. """
[docs] def iter_currencies(self): """ Iter available currencies. :rtype: iter[:class:`Currency`] """ raise NotImplementedError()
[docs] def get_rate(self, currency_from, currency_to): """ Get exchange rate. :param currency_from: currency to which exchange rate is relative to :type currency_from: :class:`Currency` :param currency_to: currency is converted to :type currency_to: :class`Currency` :rtype: :class:`Rate` """ raise NotImplementedError()