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Issue #13724: improve documentation for socket.create_connection.

This commit is contained in:
Antoine Pitrou 2012-01-12 08:06:19 +01:00
parent 0010256de4
commit 889a5101c2
1 changed files with 11 additions and 4 deletions
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15
Doc/library/socket.rst
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@ -236,10 +236,17 @@ The module :mod:`socket` exports the following constants and functions:
.. function:: create_connection(address[, timeout[, source_address]])
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
Connect to a TCP service listening on the Internet *address* (a 2-tuple
``(host, port)``), and return the socket object. This is a higher-level
function than :meth:`socket.connect`: if *host* is a non-numeric hostname,
it will try to resolve it for both :data:`AF_INET` and :data:`AF_INET6`,
and then try to connect to all possible addresses in turn until a
connection succeeds. This makes it easy to write clients that are
compatible to both IPv4 and IPv6.
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 supplied, *source_address* must be a 2-tuple ``(host, port)`` for the