def __init__(self):
self.rates_file = os.path.join(settings.BASE_DIR,
settings.CURRENCY_RATES_FILE)
try:
with open(self.rates_file, 'rb') as f:
self.rates = pickle.load(f)
except FileNotFoundError:
print(
'Warning. Probably the first run because rates.txt file does not exist.'
)
xrates.install('money.exchange.SimpleBackend')
self.update_status = 'not updated'
self.last_modified = ''
def test_multiple_xrates(self):
xrates.install('money.exchange.SimpleBackend')
self.assertTrue(xrates)
xrates.base = 'XXX'
xrates.setrate('AAA', Decimal('2'))
from money.exchange import ExchangeRates
another = ExchangeRates()
another.install('money.exchange.SimpleBackend')
self.assertTrue(another)
another.base = 'XXX'
another.setrate('AAA', Decimal('100'))
self.assertEqual(xrates.rate('AAA'), Decimal('2'))
self.assertEqual(another.rate('AAA'), Decimal('100'))
def test_multiple_xrates(self):
xrates.install('money.exchange.SimpleBackend')
self.assertTrue(xrates)
xrates.base = 'XXX'
xrates.setrate('AAA', Decimal('2'))
from money.exchange import ExchangeRates
another = ExchangeRates()
another.install('money.exchange.SimpleBackend')
self.assertTrue(another)
another.base = 'XXX'
another.setrate('AAA', Decimal('100'))
self.assertEqual(xrates.rate('AAA'), Decimal('2'))
self.assertEqual(another.rate('AAA'), Decimal('100'))
def test_multiple_xrates(self):
xrates.install("money.exchange.SimpleBackend")
self.assertTrue(xrates)
xrates.base = "XXX"
xrates.setrate("AAA", Decimal("2"))
from money.exchange import ExchangeRates
another = ExchangeRates()
another.install("money.exchange.SimpleBackend")
self.assertTrue(another)
another.base = "XXX"
another.setrate("AAA", Decimal("100"))
self.assertEqual(xrates.rate("AAA"), Decimal("2"))
self.assertEqual(another.rate("AAA"), Decimal("100"))
def setup_xrates(base, rates):
"""
If using the Python money package, this will set up the xrates exchange
rate data.
:param base:
The string currency code to use as the base
:param rates:
A dict with keys that are string currency codes and values that are
a Decimal of the exchange rate for that currency.
"""
xrates.install('money.exchange.SimpleBackend')
xrates.base = base
for code, value in rates.items():
xrates.setrate(code, value)
def __init__(self):
self.currencies = ["JPY", "EUR", "CAD", "CNY", "GBP"]
self.rates = [
Decimal("122.690"),
Decimal("0.92823"),
Decimal("1.32925"),
Decimal("6.37419"),
Decimal("0.65742"),
]
xrates.install("money.exchange.SimpleBackend")
xrates.base = "USD"
for i in range(len(self.currencies)):
xrates.setrate(self.currencies[i], self.rates[i])
def setup_xrates(base, rates):
"""
If using the Python money package, this will set up the xrates exchange
rate data.
:param base:
The string currency code to use as the base
:param rates:
A dict with keys that are string currency codes and values that are
a Decimal of the exchange rate for that currency.
"""
xrates.install('money.exchange.SimpleBackend')
xrates.base = base
for code, value in rates.items():
xrates.setrate(code, value)
def setUp(self):
xrates.install('money.exchange.SimpleBackend')
def test_unregister(self):
xrates.install("money.exchange.SimpleBackend")
self.assertEqual(xrates.backend_name, "SimpleBackend")
xrates.uninstall()
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
def test_register_instance(self):
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
xrates.install(SimpleBackend())
self.assertEqual(xrates.backend_name, "SimpleBackend")
def test_unavailable_rate_conversion_error(self):
xrates.install("money.exchange.SimpleBackend")
with self.assertRaises(ExchangeRateNotFound):
self.MoneyClass("2", "AAA").to("BBB")
def setUp(self):
xrates.install("money.exchange.SimpleBackend")
def test_unavailable_rate_conversion_error(self):
xrates.install('money.exchange.SimpleBackend')
with self.assertRaises(ExchangeRateNotFound):
self.MoneyClass('2', 'AAA').to('BBB')
def setUpClass(cls):
xrates.install('money.exchange.SimpleBackend')
xrates.base = 'XXX'
xrates.setrate('AAA', Decimal('2'))
xrates.setrate('BBB', Decimal('8'))
def test_unregister(self):
xrates.install('money.exchange.SimpleBackend')
self.assertEqual(xrates.backend_name, 'SimpleBackend')
xrates.uninstall()
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
def test_register_instance(self):
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
xrates.install(SimpleBackend())
self.assertEqual(xrates.backend_name, 'SimpleBackend')
def test_unavailable_rate_conversion_error(self):
xrates.install('money.exchange.SimpleBackend')
with self.assertRaises(ExchangeRateNotFound):
self.MoneyClass('2', 'AAA').to('BBB')
def test_base_not_set_warning(self):
xrates.uninstall()
xrates.install('money.exchange.SimpleBackend')
with self.assertRaises(Warning):
xrates.setrate('AAA', Decimal('2'))
def setUpClass(cls):
xrates.install('money.exchange.SimpleBackend')
xrates.base = 'XXX'
xrates.setrate('AAA', Decimal('2'))
xrates.setrate('BBB', Decimal('8'))
from money import XMoney
from money import xrates
import decimal
import pandas as pd
# install abstract base class
xrates.install('money.exchange.SimpleBackend')
#set US Dollar as the currency the others will be converted to
xrates.base = 'USD'
# set the exchange rate for EUR to USD
xrates.setrate('EUR', decimal.Decimal('0.9'))
# set the exchange rate for GBP to USD
xrates.setrate('GBP', decimal.Decimal('0.8'))
# data frame - uses Pandas' Extension Array Interface
df = pd.DataFrame({"money": MoneyArray(['GBP 100', 'EUR 300'], 'USD')})
print("The table with the currencies:\n", df)
# the data frame table is accessed via the row, ie 0 is row 1 & 1 is row 2.
# the subtraction method needs accessed through XMoney, a money subclass. Then it's converted to USD
difference = (df['money'][0].__sub__(df['money'][1])).to('USD')
print("\nDifference between GBP 100 & EUR 300, in USD:\n", difference)
from money import XMoney, xrates, Money
from decimal import Decimal
#Exchange rates current as of June 8th, 2016
xrates.install('money.exchange.SimpleBackend')
xrates.base = 'USD'
rates = {'EUR': 0.88}
for k, v in rates.iteritems():
xrates.setrate(k, Decimal(v))
def money_converter(amount):
"""Returns value in USD
"""
if amount == None:
return None
if amount[0] == '$':
return int(round(float(amount[1:].replace(',', ''))))
if amount[0] == '\xe2': #Euro
return int(round(float(str(Money(amount[3:].replace(',', ''), 'EUR').to('USD')).replace(',', '')[4:])))
return None
def __init__(self):
"""
Returns a new instance of the Rates and register this as the new
default for currency conversion for *all* calculations.
"""
xrates.install(self)
def test_register_class(self):
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
xrates.install(SimpleBackend)
self.assertEqual(xrates.backend_name, 'SimpleBackend')
def test_register(self):
self.assertFalse(xrates)
self.assertIsNone(xrates.backend_name)
xrates.install('money.exchange.SimpleBackend')
self.assertEqual(xrates.backend_name, 'SimpleBackend')