Finishes first version of Observer. To be modified to fir with Facemovie

.gitignore

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+*.pyc

Observable.py

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+#!/usr/bin/env python
+
+import Observer
+
+class Observable():
+	"""
+	"""
+
+	def __init__(self):
+		"""
+		"""
+		self.val = 1
+		self.obs_collection = []
+
+
+	def subscribe(self, observer):
+		"""
+		"""
+		try:
+			if not(observer in self.obs_collection):
+				self.obs_collection.append(observer)
+				print "%s added to collection" %(str(observer))
+			else:
+				print "%s already in collection" %(str(observer))
+
+		except TypeError:
+			print "Failed to add %s" %(str(observer))
+
+	def unsubscribe(self, observer):
+		"""
+		"""
+		try:
+			if observer in self.obs_collection:
+				self.obs_collection.remove(observer)
+				print "%s removed from collection" %(str(observer))
+			else:
+				print "%s not in collection" %(str(observer))
+
+		except TypeError:
+			print "Failed to remove %s" %(str(observer))
+
+	def notify(self, message):
+		"""
+		"""
+		for observer in self.obs_collection:
+			print "sent %s to %s" %(message, str(observer))
+			observer.update(message)
+
+
+	def set_val(self, val=1):
+		"""
+		"""
+		self.val += val
+		self.notify(str(self.val))

Observer.py

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+#!/usr/bin/env python
+
+class Observer():
+	"""
+	"""
+
+	def __init__(self, name="bob"):
+		"""
+		"""
+		self.name = name
+
+
+	def update(self, message):
+		"""
+		"""
+		if message is not None:
+			print "%s received %s" %(self.name, message)
+
+	def __str__(self):
+		return self.name

test.py

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+#!/usr/bin/env python
+
+from Observer import Observer
+from Observable import Observable
+
+a = Observer("riri")
+b = Observer("fifi")
+c = Observer("loulou")
+
+d = Observable()
+
+d.subscribe(a)
+d.subscribe(b)
+d.subscribe(b)
+d.subscribe(c)
+
+d.unsubscribe(b)
+
+d.set_val(3)
+d.set_val()