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On Unix, it supports IP (Internet Protocol) and Unix domain sockets.
On other systems, it only supports IP. Functions specific for a
socket are available as methods of the socket object.
Functions:
socket() -- create a new socket object
socketpair() -- create a pair of new socket objects [*]
fromfd() -- create a socket object from an open file descriptor [*]
gethostname() -- return the current hostname
gethostbyname() -- map a hostname to its IP number
gethostbyaddr() -- map an IP number or hostname to DNS info
getservbyname() -- map a service name and a protocol name to a port number
getprotobyname() -- map a protocol name (e.g. 'tcp') to a number
ntohs(), ntohl() -- convert 16, 32 bit int from network to host byte order
htons(), htonl() -- convert 16, 32 bit int from host to network byte order
inet_aton() -- convert IP addr string (123.45.67.89) to 32-bit packed format
inet_ntoa() -- convert 32-bit packed format IP to string (123.45.67.89)
socket.getdefaulttimeout() -- get the default timeout value
socket.setdefaulttimeout() -- set the default timeout value
create_connection() -- connects to an address, with an optional timeout and
optional source address.
[*] not available on all platforms!
Special objects:
SocketType -- type object for socket objects
error -- exception raised for I/O errors
has_ipv6 -- boolean value indicating if IPv6 is supported
Integer constants:
AF_INET, AF_UNIX -- socket domains (first argument to socket() call)
SOCK_STREAM, SOCK_DGRAM, SOCK_RAW -- socket types (second argument)
Many other constants may be defined; these may be used in calls to
the setsockopt() and getsockopt() methods.
i N( u *u EBADFi u EINTRi u EAGAINi u EWOULDBLOCKu getfqdnu create_connectionu winu The operation was interrupted.i' u A bad file handle was passed.i' u Permission denied.i ' u! A fault occurred on the network??i ' u# An invalid operation was attempted.i&' u The socket operation would blocki3' u, A blocking operation is already in progress.i4' u The network address is in use.i@' u The connection has been reset.iF' u The network has been shut down.iJ' u The operation timed out.iL' u Connection refused.iM' u The name is too long.iO' u The host is down.iP' u The host is unreachable.iQ' u errorTabc s� | Ee Z d Z d d d g Z e e d d d � Z d � Z d � Z d � Z
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Return a new socket object connected to the same system resource.
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Wait for an incoming connection. Return a new socket
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makefile(...) -> an I/O stream connected to the socket
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The semantics are similar too. (XXX refactor to share code?)
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Close the socket object without closing the underlying file descriptor.
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Create a socket object from a duplicate of the given file
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k r� w/ n | t k r� d S� WYd d } ~ Xq/ Xq/ d S( u3 Read up to len(b) bytes into the writable buffer *b* and return
the number of bytes read. If the socket is non-blocking and no bytes
are available, None is returned.
If *b* is non-empty, a 0 return value indicates that the connection
was shutdown at the other end.
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ri } z | j d t k rT d S� WYd d } ~ Xn Xd S( u Write the given bytes or bytearray object *b* to the socket
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i N( u _checkClosedu _checkWritableu _socku sendu erroru argsu _blocking_errnosu None( u selfu bu e( ( u- /usr/local/python-3.2/lib/python3.2/socket.pyu write+ s
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socket, except if all references to it have disappeared.
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rX Yn8 X| j d | � x$ | D] } d | k rp Pqp qp W| } | S( u Get fully qualified domain name from name.
An empty argument is interpreted as meaning the local host.
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possibly existing aliases. In case no FQDN is available, hostname
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Convenience function. Connect to *address* (a 2-tuple ``(host,
port)``) and return the socket object. Passing the optional
*timeout* parameter will set the timeout on the socket instance
before attempting to connect. If no *timeout* is supplied, the
global default timeout setting returned by :func:`getdefaulttimeout`
is used. If *source_address* is set it must be a tuple of (host, port)
for the socket to bind as a source address before making the connection.
An host of '' or port 0 tells the OS to use the default.
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