def test_list_currencies():
assert isinstance(list_currencies(), set)
assert list_currencies().issuperset(['BAD', 'BAM', 'KRO'])
assert isinstance(list_currencies(locale='fr'), set)
assert list_currencies('fr').issuperset(['BAD', 'BAM', 'KRO'])
with pytest.raises(ValueError) as excinfo:
list_currencies('yo!')
assert excinfo.value.args[0] == "expected only letters, got 'yo!'"
assert list_currencies(locale='pa_Arab') == set(['PKR', 'INR', 'EUR'])
assert list_currencies(locale='kok') == set([])
assert len(list_currencies()) == 296
def test_list_currencies():
assert isinstance(list_currencies(), set)
assert list_currencies().issuperset(['BAD', 'BAM', 'KRO'])
assert isinstance(list_currencies(locale='fr'), set)
assert list_currencies('fr').issuperset(['BAD', 'BAM', 'KRO'])
with pytest.raises(ValueError) as excinfo:
list_currencies('yo!')
assert excinfo.value.args[0] == "expected only letters, got 'yo!'"
assert list_currencies(locale='pa_Arab') == set(['PKR', 'INR', 'EUR'])
assert list_currencies(locale='kok') == set([])
assert len(list_currencies()) == 296
from babel.numbers import list_currencies CURRENCY_CHOICES = [(CURRENCY, CURRENCY) for CURRENCY in list_currencies()]
def __init__(self, master):
self.master = master
#title
master.title("Foreign Exchange Converter")
#initialize numbers
self.total = 0.0
self.entered_number = 0.0
self.amount = 0.0
self.enable_operations = False
#convert currency from
self.label1 = Label(master, text="Convert Currency From")
#drop-down menu
self.tkvar_1 = StringVar(master)
self.tkvar_1.set("CAD")
self.menu_1 = OptionMenu(master, self.tkvar_1,
*sorted(list_currencies()))
#convert to
self.label2 = Label(master, text="To")
#drop-down menu
self.tkvar_2 = StringVar(master)
self.tkvar_2.set("CAD")
self.menu_2 = OptionMenu(master, self.tkvar_2,
*sorted(list_currencies()))
#confirm(disable menu)
self.confirm_button = Button(master,
text="confirm",
command=lambda: self.confirm())
#Amount of money(input text)
#input must be valid numbers(int/double with two decimal places)
self.label3 = Label(master, text="Amount to convert")
vcmd = master.register(self.validate)
self.entry = Entry(master,
validate="key",
validatecommand=(vcmd, '%P'))
#update a section summary
#Add/Subtract Button(menu disabled) & Reset(menu active, everything=0)
self.add_button = Button(master,
text="+",
command=lambda: self.update("add"))
self.subtract_button = Button(master,
text="-",
command=lambda: self.update("subtract"))
self.reset_button = Button(master,
text="Reset",
command=lambda: self.update("reset"))
#update to total
#check if valid(unit of currency must align)
#do the addition/subtraction
#Total
self.label4 = Label(master, text="Total:")
self.total_label_text = IntVar()
self.total_label_text.set(self.total)
self.total_label = Label(master, textvariable=self.total_label_text)
self.from_label_text = StringVar()
self.from_label_text.set(self.tkvar_1.get())
self.from_label = Label(master, textvariable=self.from_label_text)
#Calculated result
self.eq_label = Label(master, text="≈")
self.amount_label_text = IntVar()
self.amount_label_text.set(self.amount)
self.amount_label = Label(master, textvariable=self.amount_label_text)
self.to_label_text = StringVar()
self.to_label_text.set(self.tkvar_2.get())
self.to_label = Label(master, textvariable=self.to_label_text)
# LAYOUT
#convert currency from #menu_1
self.label1.grid(row=1, column=2, sticky=E)
self.menu_1.grid(row=1, column=4, sticky=W)
#to #menu_2
self.label2.grid(row=2, column=2, sticky=E)
self.menu_2.grid(row=2, column=4, sticky=W)
#confirm button
self.confirm_button.grid(row=2, column=5, sticky=W)
#Amount to convert
self.label3.grid(row=3, column=2, columnspan=1, sticky=E)
self.entry.grid(row=3, column=4, columnspan=2, sticky=W)
#Add, Subtract, Reset
self.add_button.grid(row=4, column=2)
self.subtract_button.grid(row=4, column=3)
self.reset_button.grid(row=4, column=5, sticky=W)
#total
self.label4.grid(row=5, column=2, sticky=W + E)
self.total_label.grid(row=5, column=4, sticky=E)
self.from_label.grid(row=5, column=5, sticky=W)
self.eq_label.grid(row=6, column=3, sticky=W)
self.amount_label.grid(row=6, column=4, sticky=E)
self.to_label.grid(row=6, column=5, sticky=W)
