def get_currency(cls, currency_name):
try:
with request.urlopen(cls.Constants.base_url +
currency_name) as response:
data = response.read().decode()
json_data = json.loads(data)
return Currency(json_data)
except Exception as error:
return None
def get_currency(cls, initial_currency_name, final_currency_name):
try:
with request.urlopen(cls.Constants.base_url + initial_currency_name) as response:
data = response.read().decode()
json_data = json.loads(data)
return Currency(final_currency_name, json_data)
except URLError:
return None
def get_currency(cls, currency_name):
try:
with request.urlopen(cls.Constants.base_url +
currency_name) as response:
data = response.read().decode()
data_dictionary = json.loads(data)
return Currency(data_dictionary)
except Exception:
print(
'The calculator is not going to work, invalid URL inserted or non-available currency.'
)
class MainApp():
def __init__(self):
self.__master = MainView(convert_handler=self.__convert)
def run(self):
self.__currency = Currency("USD", 18.90)
self.__master.mainloop()
def __convert(self, from_currency, to_currency, ammount):
result = self.__currency.get_convertion(to_currency, ammount)
self.__master.update_result(result)
def run(self):
self.__currency = Currency("USD", 18.90)
self.__master.mainloop()