def update(self, *args, **kwargs):
"""
Updating that there was change
:rtype: void
"""
Observable.update_observers(self)
print(key,":",value)
class ObserverB(BaseClass):
'''A type of observerA class'''
def __init__(self):
'''Observer A constructor'''
def update(self, *args, **kwargs):
'''update callback which would be invoked'''
print("ObserverB update invoked")
for arg in args:
print(arg)
for key,value in kwargs.items():
print(key,":",value)
if __name__ == "__main__":
underObservation = Observable()
bot1 = ObserverA()
bot2 = ObserverB()
underObservation.register(bot1)
underObservation.register(bot2)
underObservation.update_observers(('SMA indicates SELL', 'Bollinger Resistance', 'SELL'), {"Lotsize": 37,
"TakeProfit": 300,
"SL": 50})
from Observable import Observable
from observer import Observer
class AmericanStockMarket(Observer):
def update(self, *args, **kwargs):
print("American stock market received: {0}\n{1}".format(args, kwargs))
class EuropeanStockMarket(Observer):
def update(self, *args, **kwargs):
print("European stock market received: {0}\n{1}".format(args, kwargs))
if __name__ == "__main__":
observable = Observable()
american_observer = AmericanStockMarket()
observable.register(american_observer)
european_observer = EuropeanStockMarket()
observable.register(european_observer)
observable.update_observers('Market Rally', something='Hello World')
