Added stack using Python 3.5

stack/stack.py

@@ -0,0 +1,44 @@
+# This is written in Python 3.5.2
+
+class Stack(object):
+
+	# l is a list/tuple which can be used for initialization of the stack.
+	# The value at the last index position is considered as the top of the stack.
+	def __init__(self, l = []):
+		self.stack = list(l)
+
+
+	# Inserting a new value at the top of the stack.
+	def push(self, x):
+		self.stack.append(x)
+		print(x, "pushed at the top of the stack.")
+
+
+	# Deleting the value at the top of the stack.
+	def pop(self):
+		if len(self.stack) == 0:
+			print("The stack is empty.")
+			return
+		temp = self.stack.pop()
+		print("The value found at the top of the stack is", temp)
+		return temp
+
+
+	# Returning the value at the top of the stack without deleting it.
+	def peek(self):
+		if len(self.stack) == 0:
+			print("The stack is empty.")
+			return
+		temp = self.stack[-1]
+		print("The value found at the top of the stack is", temp)
+		return temp
+
+
+	# Clearing the entire stack
+	def delete(self):
+		self.stack = []
+
+
+	# String representation of the stack class
+	def __str__(self):
+		return self.stack.__str__()