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author	Qt Continuous Integration System <qt-info@nokia.com>	2010-04-27 07:54:03 (GMT)
committer	Qt Continuous Integration System <qt-info@nokia.com>	2010-04-27 07:54:03 (GMT)
commit	ebed13e649c1572ed85cb841252e73a479516052 (patch)
tree	6a48393216426d07fd9e4dda4239948ef2e6ad60 /doc/src/snippets/file/file.cpp
parent	09293f1d07b019dc7bfe95afb93364cc87774e82 (diff)
parent	0af72a19fc4f85ca8bb13415a298ec5a646b4544 (diff)
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Merge branch 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration into 4.7-integration

* 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration: (72 commits) Attempt again at fixing the OpenVG paint engine build Revert "Attempt at fixing compile failure introduced by 4.6 merge in qpaintengine_vg.cpp" Attempt at fixing compile failure introduced by 4.6 merge in qpaintengine_vg.cpp Fixing the wrong QUrl usage When on Symbian use smaller files. correctly position glyphs for complex languages Removed inneccessary QGlyphLayout::offsets initialization. Fix mirrored characters for RTL text in Symbian QNAM: Add a code comment related to the cache tst_QSystemSemaphore::processes fixed for WinCE tst_qsystemsemaphore: fix deployment of lackey.exe for WinCE tst_qsharedmemory: create multiple instances of lackey.exe on WinCE tst_qsharedmemory: fix deployment of lackey.exe for WinCE fix compilation of tst_sharedmemory on Windows CE QtScript: regression with instanceof operator for QMetaObject wrappers examples/widgets/stylesheet fix mainwindow.ui QStyleSheetStyle: fix memory leak on base style change QNAM HTTP: Fixed a bug when getting empty files with pipelining Fix window transparency on Symbian. Tweak the 'normalGeometry' of the widget before setting it. ...

Diffstat (limited to 'doc/src/snippets/file/file.cpp')

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:mod:`poplib` --- POP3 protocol client ====================================== .. module:: poplib :synopsis: POP3 protocol client (requires sockets). .. sectionauthor:: Andrew T. Csillag .. revised by ESR, January 2000 .. index:: pair: POP3; protocol **Source code:** :source:`Lib/poplib.py` -------------- This module defines a class, :class:`POP3`, which encapsulates a connection to a POP3 server and implements the protocol as defined in :rfc:`1725`. The :class:`POP3` class supports both the minimal and optional command sets. Additionally, this module provides a class :class:`POP3_SSL`, which provides support for connecting to POP3 servers that use SSL as an underlying protocol layer. Note that POP3, though widely supported, is obsolescent. The implementation quality of POP3 servers varies widely, and too many are quite poor. If your mailserver supports IMAP, you would be better off using the :class:`imaplib.IMAP4` class, as IMAP servers tend to be better implemented. A single class is provided by the :mod:`poplib` module: .. class:: POP3(host, port=POP3_PORT[, timeout]) This class implements the actual POP3 protocol. The connection is created when the instance is initialized. If *port* is omitted, the standard POP3 port (110) is used. The optional *timeout* parameter specifies a timeout in seconds for the connection attempt (if not specified, the global default timeout setting will be used). .. class:: POP3_SSL(host, port=POP3_SSL_PORT, keyfile=None, certfile=None, timeout=None, context=None) This is a subclass of :class:`POP3` that connects to the server over an SSL encrypted socket. If *port* is not specified, 995, the standard POP3-over-SSL port is used. *keyfile* and *certfile* are also optional - they can contain a PEM formatted private key and certificate chain file for the SSL connection. *timeout* works as in the :class:`POP3` constructor. *context* parameter is a :class:`ssl.SSLContext` object which allows bundling SSL configuration options, certificates and private keys into a single (potentially long-lived) structure. .. versionchanged:: 3.2 *context* parameter added. One exception is defined as an attribute of the :mod:`poplib` module: .. exception:: error_proto Exception raised on any errors from this module (errors from :mod:`socket` module are not caught). The reason for the exception is passed to the constructor as a string. .. seealso:: Module :mod:`imaplib` The standard Python IMAP module. `Frequently Asked Questions About Fetchmail <http://www.catb.org/~esr/fetchmail/fetchmail-FAQ.html>`_ The FAQ for the :program:`fetchmail` POP/IMAP client collects information on POP3 server variations and RFC noncompliance that may be useful if you need to write an application based on the POP protocol. .. _pop3-objects: POP3 Objects ------------ All POP3 commands are represented by methods of the same name, in lower-case; most return the response text sent by the server. An :class:`POP3` instance has the following methods: .. method:: POP3.set_debuglevel(level) Set the instance's debugging level. This controls the amount of debugging output printed. The default, ``0``, produces no debugging output. A value of ``1`` produces a moderate amount of debugging output, generally a single line per request. A value of ``2`` or higher produces the maximum amount of debugging output, logging each line sent and received on the control connection. .. method:: POP3.getwelcome() Returns the greeting string sent by the POP3 server. .. method:: POP3.user(username) Send user command, response should indicate that a password is required. .. method:: POP3.pass_(password) Send password, response includes message count and mailbox size. Note: the mailbox on the server is locked until :meth:`quit` is called. .. method:: POP3.apop(user, secret) Use the more secure APOP authentication to log into the POP3 server. .. method:: POP3.rpop(user) Use RPOP authentication (similar to UNIX r-commands) to log into POP3 server. .. method:: POP3.stat() Get mailbox status. The result is a tuple of 2 integers: ``(message count, mailbox size)``. .. method:: POP3.list([which]) Request message list, result is in the form ``(response, ['mesg_num octets', ...], octets)``. If *which* is set, it is the message to list. .. method:: POP3.retr(which) Retrieve whole message number *which*, and set its seen flag. Result is in form ``(response, ['line', ...], octets)``. .. method:: POP3.dele(which) Flag message number *which* for deletion. On most servers deletions are not actually performed until QUIT (the major exception is Eudora QPOP, which deliberately violates the RFCs by doing pending deletes on any disconnect). .. method:: POP3.rset() Remove any deletion marks for the mailbox. .. method:: POP3.noop() Do nothing. Might be used as a keep-alive. .. method:: POP3.quit() Signoff: commit changes, unlock mailbox, drop connection. .. method:: POP3.top(which, howmuch) Retrieves the message header plus *howmuch* lines of the message after the header of message number *which*. Result is in form ``(response, ['line', ...], octets)``. The POP3 TOP command this method uses, unlike the RETR command, doesn't set the message's seen flag; unfortunately, TOP is poorly specified in the RFCs and is frequently broken in off-brand servers. Test this method by hand against the POP3 servers you will use before trusting it. .. method:: POP3.uidl(which=None) Return message digest (unique id) list. If *which* is specified, result contains the unique id for that message in the form ``'response mesgnum uid``, otherwise result is list ``(response, ['mesgnum uid', ...], octets)``. Instances of :class:`POP3_SSL` have no additional methods. The interface of this subclass is identical to its parent. .. _pop3-example: POP3 Example ------------ Here is a minimal example (without error checking) that opens a mailbox and retrieves and prints all messages:: import getpass, poplib M = poplib.POP3('localhost') M.user(getpass.getuser()) M.pass_(getpass.getpass()) numMessages = len(M.list()[1]) for i in range(numMessages): for j in M.retr(i+1)[1]: print(j) At the end of the module, there is a test section that contains a more extensive example of usage.


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