renumbering chapters >= 19

21-async/domains/asyncio/domaincheck.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+import asyncio
+import sys
+from keyword import kwlist
+
+from domainlib import multi_probe
+
+
+async def main(tld: str) -> None:
+    tld = tld.strip('.')
+    names = (kw for kw in kwlist if len(kw) <= 4)  # <1>
+    domains = (f'{name}.{tld}'.lower() for name in names)  # <2>
+    print('FOUND\t\tNOT FOUND')  # <3>
+    print('=====\t\t=========')
+    async for domain, found in multi_probe(domains):  # <4>
+        indent = '' if found else '\t\t'  # <5>
+        print(f'{indent}{domain}')
+
+
+if __name__ == '__main__':
+    if len(sys.argv) == 2:
+        asyncio.run(main(sys.argv[1]))  # <6>
+    else:
+        print('Please provide a TLD.', f'Example: {sys.argv[0]} COM.BR')