Merge pull request #11 from eveem/master

Implemented stack in python.

other/Stack.py

@@ -0,0 +1,46 @@
+class Stack:
+	def __init__ (self):
+		self.items = list()
+
+	def push (self, item):
+		self.items.append (item)
+
+	def pop (self):
+		if len(self.items) > 0:
+			return self.items.pop()
+		return ('Stack is empty')
+
+	def isEmpty (self):
+		return self.items == list()
+
+	def size (self):
+		return len(self.items)
+
+	def peek (self):
+		return self.items[0]
+
+	def printStack (self):
+		print(self.items)
+
+if __name__ == '__main__':
+	my_stack = Stack()
+
+	my_stack.push(1)
+	my_stack.printStack()
+
+	my_stack.push(5)
+	my_stack.push(3)
+	my_stack.printStack()
+
+	print('Pop {} from stack'.format(my_stack.pop()))
+	my_stack.printStack()
+	print('Now stack size is {}'.format(my_stack.size()))
+
+	print('First element in stack is {}'.format(my_stack.peek()))
+	print('Pop {} from stack'.format(my_stack.pop()))
+	my_stack.printStack()
+	print('Pop {} from stack'.format(my_stack.pop()))
+	my_stack.printStack()
+	print('Now stack size is {}'.format(my_stack.size()))
+	print(my_stack.pop())
+