This is the solution to leetcode problem 19 remove nth node from end of list in python

remove_nth_node_from_end_of_list.py

@@ -0,0 +1,21 @@
+class Solution:
+    def removeNthFromEnd(self, head: Optional[ListNode], n: int) -> Optional[ListNode]:
+
+        dummy = ListNode(0, head)
+        left = dummy
+        right = head
+
+        while n > 0 and right:
+            right = right.next
+            n -= 1
+
+        while right is not None:
+            left = left.next
+            right = right.next
+
+
+        # deletion code
+
+        left.next = left.next.next
+
+        return dummy.next