| from tornado.ioloop import IOLoop | |
| from tornado.netutil import ThreadedResolver | |
| # When this module is imported, it runs getaddrinfo on a thread. Since | |
| # the hostname is unicode, getaddrinfo attempts to import encodings.idna | |
| # but blocks on the import lock. Verify that ThreadedResolver avoids | |
| # this deadlock. | |
| resolver = ThreadedResolver() | |
| IOLoop.current().run_sync(lambda: resolver.resolve("localhost", 80)) | |