As of right now socket.getaddrinfo() returns a sequence of 5-tuples reflecting family, type, protocol, canonname, and address of a socket:

>>> socket.getaddrinfo(None, 0)
[(10, 1, 6, '', ('::1', 0, 0, 0)), (10, 2, 17, '', ('::1', 0, 0, 0)), (10, 3, 0, '', ('::1', 0, 0, 0)), (2, 1, 6, '', ('127.0.0.1', 0)), (2, 2, 17, '', ('127.0.0.1', 0)), (2, 3, 0, '', ('127.0.0.1', 0))]

For readability it would be good if they were named tuples instead:

>>> socket.getaddrinfo(None, 0)[0]
addr_info(family=10, type=1, protocol=6, canonname='', address=('::1', 0, 0, 0))

Optionally, integers can be replaced by socket constant names:

>>> socket.getaddrinfo(None, 0)[0]
addr_info(family=socket.AF_INET6, type=socket.SOCK_STREAM, protocol=socket.IPPROTO_TCP, canonname='', address=('::1', 0, 0, 0))

Keep in mind this isn't an entirely backwards compatible change. See issue 8413, for example.

I think the part which could possibly a problem is addressed in http://hg.python.org/cpython/rev/384f73a104e9/.  Bearing in mind that direct usage for string interpolation is a pretty strange use for the result of getaddrinfo.

A reasonable request indeed.

Attached in a patch for this, I've also changed the version to 3.4 since this is a feature and therefore probably too late to go in 3.3.  Please let me know if anything is inadequate.

This one looks to be partly done due to #18720 and enums.

>>> for item in socket.getaddrinfo(None, 0):
...     print(item)
... 
(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_DGRAM: 2>, 17, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_RAW: 3>, 0, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_DGRAM: 2>, 17, '', ('127.0.0.1', 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_RAW: 3>, 0, '', ('127.0.0.1', 0))

Is there a reason that Protocols weren't converted to be enums?  I added quick code to socket.py and it turned the above into:

(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_STREAM: 1>, <Protocol.IPPROTO_TCP: 6>, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_DGRAM: 2>, <Protocol.IPPROTO_UDP: 17>, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET6: 10>, <SocketKind.SOCK_RAW: 3>, <Protocol.IPPROTO_HOPOPTS: 0>, '', ('::1', 0, 0, 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, <Protocol.IPPROTO_TCP: 6>, '', ('127.0.0.1', 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_DGRAM: 2>, <Protocol.IPPROTO_UDP: 17>, '', ('127.0.0.1', 0))
(<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_RAW: 3>, <Protocol.IPPROTO_HOPOPTS: 0>, '', ('127.0.0.1', 0))

Would that be a responsible change to include?