March 2019
Beginner
490 pages
12h 40m
English
book
Learning Python Networking - Second Edition
by José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
Content preview from Learning Python Networking - Second Edition
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Utilities in Tornado for asynchronous network operations
The tornado.netutil module includes several functions that are quite useful for both clients and servers. The use of some of these functions are commented as follows:
>>> from tornado import netutil>>> sockets = netutil.bind_sockets(8080)>>> sockets[<socket.socket fd=1108, family=AddressFamily.AF_INET6, type=SocketKind.SOCK_STREAM, proto=0, laddr=('::', 8080, 0, 0)>, <socket.socket fd=1112, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('0.0.0.0', 8080)>]>>> netutil.is_valid_ip('127.0.0.1')True>>> netutil.is_valid_ip('::1')True>>> netutil.is_valid_ip('::11111')False>>> dnsResolver = netutil.Resolver()>>> dnsResolver<tornado.netutil.DefaultExecutorResolver ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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