Added Dynamic Stack using Python (jainaman224#249)

* Added Dynnamic Stack using Python

* .pyc removed

Author: Nabarun Pal

Dynamic_Stack_Arrays/Dynamic_Stack.py

@@ -0,0 +1,48 @@
+class Dynamic_Stack:
+	capacity = 0
+	stack = []
+
+	def __init__(self, capacity):
+		self.capacity = capacity
+		self.stack = []
+
+	def isFull(self):
+		return len(self.stack) == self.capacity
+
+	def isEmpty(self):
+		return len(self.stack) == 0
+
+	def push(self, element):
+		if(self.isFull()):
+			return
+		else:
+			self.stack.append(element)
+
+	def pop(self):
+		if(self.isEmpty()):
+			return -1
+		else:
+			temp = self.stack[-1]
+			self.stack[:-2]
+			return temp
+
+	def peek(self):
+		if(self.isEmpty()):
+			return -1
+		else:
+			return self.stack[-1]
+
+# Example
+a = Dynamic_Stack(4)
+
+print(a.isEmpty())
+a.push(1)
+print(a.isEmpty())
+a.push(2)
+a.push(3)
+print(a.isFull())
+a.push(4)
+print(a.isFull())
+print(a.peek())
+print(a.pop())
+print(a.peek())