Add script to determine node client versions across the network.

Co-authored-by: KPrasch <kieranprasch@gmail.com>

scripts/network_client_versions.py

@@ -0,0 +1,49 @@
+import asyncio
+from collections import Counter
+from contextlib import suppress
+
+import aiohttp
+import requests
+
+TIMEOUT = 5
+template = "https://{host}/status?json=true"
+
+requests.packages.urllib3.disable_warnings()
+
+
+async def fetch(session, url):
+    with suppress(Exception):
+        async with session.get(url, ssl=False, timeout=TIMEOUT) as response:
+            response = await response.json()
+            return response["version"]
+    return "unknown"
+
+
+async def main():
+
+    url = template.format(host="mainnet.nucypher.network:9151")
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url, ssl=False, timeout=TIMEOUT) as response:
+            status_data = await response.json()
+
+        nodes = status_data.get("known_nodes", [])
+        total_nodes = len(nodes)
+        print(f"Number of nodes: {total_nodes}")
+
+        tasks = set()
+        for node in nodes:
+            url = template.format(host=node["rest_url"])
+            tasks.add(fetch(session, url))
+
+        results = Counter()
+        for task in asyncio.as_completed(tasks):
+            if task:
+                result = await task
+                results[result] += 1
+
+        items = sorted(results.items(), key=lambda result: result[1], reverse=True)
+        for version, count in items:
+            print(f"Version {version}: {count} nodes ({count*100/total_nodes:.1f}%)")
+
+
+asyncio.run(main())