chore(Python): added reverse linked list (#487)

algorithms/Python/README.md

@@ -11,6 +11,7 @@
 
 1. [Doubly](linked_lists/doubly.py)
 2. [Singly](linked_lists/singly.py)
+3. [Reverse List](linked_lists/reverse-linkedlist.py)
 
 ## Multiplication
 

algorithms/Python/linked_lists/reverse-linkedlist.py

@@ -0,0 +1,51 @@
+# reverse a given linkedlist
+
+class Node:
+  # Constructor to initialize the node object
+    def __init__(self, data=0, next=None):
+        self.data = data
+        self.next = next
+
+
+class LinkedList:
+    # Constructor to initialize head
+    def __init__(self) -> None:
+        self.head = None
+
+     # Function to insert a new node at the beginning
+    def push(self, data):
+        node = Node(data)
+        node.next = self.head
+        self.head = node
+
+     # Function to print the list from beginning
+    def printList(self):
+        temp = self.head
+        while temp:
+            print(temp.data, end=" ")
+            temp = temp.next
+
+    # Function to reverse the list
+    def reverse(self):
+        dummy = None
+        cur = self.head
+        while cur:
+            nextTemp = cur.next
+            cur.next = dummy
+            dummy = cur
+            cur = nextTemp
+        self.head = dummy
+
+
+if __name__ == '__main__':
+    ll = LinkedList()
+    ll.push(1)
+    ll.push(2)
+    ll.push(3)
+    ll.push(4)
+    ll.push(5)
+    print("Before Reverse")
+    ll.printList()
+    ll.reverse()  # reversing
+    print("\nAfter Reversing")
+    ll.printList()