ch22: examples

22-asyncio/domains/probe.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+import asyncio
+import sys
+from keyword import kwlist
+
+from netaddr import multi_probe
+
+
+async def main(tld: str) -> None:
+    names = (f'{w}.{tld}'.lower() for w in kwlist if len(w) <= 4)
+    async for name, found in multi_probe(sorted(names)):
+        mark = '.' if found else '?\t\t'
+        print(f'{mark} {name}')
+
+
+if __name__ == '__main__':
+    if len(sys.argv) == 2:
+        asyncio.run(main(sys.argv[1]))
+    else:
+        print('Please provide a TLD.', f'Example: {sys.argv[0]} COM.BR')