ring formation and getting neighbour

(from slides)

voting.py

+import socket
+
+def form_ring(members):
+    sorted_binary_ring = sorted([socket.inet_aton(member) for member in members])
+    sorted_ip_ring = [socket.inet_ntoa(node) for node in sorted_binary_ring]
+    return sorted_ip_ring
+
+members = ['192.168.0.1', '130.234.204.2', '130.234.203.2', '130.234.204.1', '182.4.3.111']
+ring = form_ring(members)
+print(ring)
+
+
+def get_neighbour(ring, current_node_ip, direction='left'):
+    current_node_index = ring.index(current_node_ip) if current_node_ip in ring else -1
+    if current_node_index != -1:
+        if direction == 'left':
+            if current_node_index + 1 == len(ring):
+                return ring[0]
+            else:
+                return ring[current_node_index + 1]
+        else:
+            if current_node_index == 0:
+                return ring[len(ring) - 1]
+            else:
+                return ring[current_node_index - 1]
+    else:
+        return None
+neighbour = get_neighbour(ring, '130.234.204.2', 'rigth')
+print(neighbour)
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