First cut at documentation for imaplib. Based on original documentation by
Piers Lauders.
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+% Based on HTML documentation by Piers Lauders <piers@staff.cs.usyd.edu.au>;
+% converted by Fred L. Drake, Jr. <fdrake@acm.org>.
+%
+% The imaplib module was written by Piers Lauders.
+
+\section{Standard Module \module{imaplib}}
+\stmodindex{imaplib}
+\label{module-imaplib}
+
+This module defines a class, \class{IMAP4}, which encapsulates a
+connection to an IMAP4 server and implements the IMAP4rev1 client
+protocol as defined in \rfc{2060}. It is backward compatible with
+IMAP4 (\rfc{1730}) servers, but note that the \samp{STATUS} command is
+not supported in IMAP4.
+
+A single class is provided by the \code{imaplib} module:
+
+\begin{classdesc}{IMAP4}{\optional{host\optional{, port}}}
+This class implements the actual IMAP4 protocol. The connection is
+created and protocol version (IMAP4 or IMAP4rev1) is determined when
+the instance is initialized.
+If \var{host} is not specified, \code{''} (the local host) is used.
+If \var{port} is omitted, the standard IMAP4 port (143) is used.
+\end{classdesc}
+
+Two exceptions are defined as attributes of the \class{IMAP4} class:
+
+\begin{excdesc}{IMAP4.error}
+Exception raised on any errors. The reason for the exception is
+passed to the constructor as a string.
+\end{excdesc}
+
+\begin{excdesc}{IMAP4.abort}
+IMAP4 server errors cause this exception to be raised. This is a
+sub-class of \exception{IMAP4.error}. Note that closing the instance
+and instantiating a new one will usually allow recovery from this
+exception.
+\end{excdesc}
+
+The following utility functions are defined:
+
+\begin{funcdesc}{Internaldate2tuple}{datestr}
+ Converts an IMAP4 INTERNALDATE string to Coordinated Universal
+ Time. Returns a \module{time} module tuple.
+\end{funcdesc}
+
+\begin{funcdesc}{Int2AP}{num}
+ Converts an integer into a string representation using characters
+ from the set [\code{A} .. \code{P}].
+\end{funcdesc}
+
+\begin{funcdesc}{ParseFlags}{flagstr}
+ Converts an IMAP4 \samp{FLAGS} response to a tuple of individual
+ flags.
+\end{funcdesc}
+
+\begin{funcdesc}{Time2Internaldate}{date_time}
+ Converts a \module{time} module tuple to an IMAP4
+ \samp{INTERNALDATE} representation. Returns a string in the form:
+ \code{"DD-Mmm-YYYY HH:MM:SS +HHMM"} (including double-quotes).
+\end{funcdesc}
+
+
+\subsection{IMAP4 Objects}
+
+All IMAP4rev1 commands are represented by methods of the same name,
+either upper-case or lower-case.
+
+Each command returns a tuple: \code{(}\var{type}, \code{[}\var{data},
+...\code{])} where \var{type} is usually \code{'OK'} or \code{'NO'},
+and \var{data} is either the text from the command response, or
+mandated results from the command.
+
+An \class{IMAP4} instance has the following methods:
+
+
+\begin{methoddesc}{append}{mailbox, flags, date_time, message}
+ Append message to named mailbox.
+\end{methoddesc}
+
+\begin{methoddesc}{authenticate}{func}
+ Authenticate command --- requires response processing. This is
+ currently unimplemented, and raises an exception.
+\end{methoddesc}
+
+\begin{methoddesc}{check}{}
+ Checkpoint mailbox on server.
+\end{methoddesc}
+
+\begin{methoddesc}{close}{}
+ Close currently selected mailbox. Deleted messages are removed from
+ writable mailbox. This is the recommended command before
+ \samp{LOGOUT}.
+\end{methoddesc}
+
+\begin{methoddesc}{copy}{message_set, new_mailbox}
+ Copy \var{message_set} messages onto end of \var{new_mailbox}.
+\end{methoddesc}
+
+\begin{methoddesc}{create}{mailbox}
+ Create new mailbox named \var{mailbox}.
+\end{methoddesc}
+
+\begin{methoddesc}{delete}{mailbox}
+ Delete old mailbox named \var{mailbox}.
+\end{methoddesc}
+
+\begin{methoddesc}{expunge}{}
+ Permanently remove deleted items from selected mailbox. Generates an
+ \samp{EXPUNGE} response for each deleted message. Returned data
+ contains a list of \samp{EXPUNGE} message numbers in order
+ received.
+\end{methoddesc}
+
+\begin{methoddesc}{fetch}{message_set, message_parts}
+ Fetch (parts of) messages. Returned data are tuples of message part
+ envelope and data.
+\end{methoddesc}
+
+\begin{methoddesc}{list}{directory='""', pattern='*'}
+ List mailbox names in directory matching pattern. Returned data contains a
+ list of \samp{LIST} responses.
+\end{methoddesc}
+
+\begin{methoddesc}{login}{user, password}
+ Identify the client using a plaintext password.
+\end{methoddesc}
+
+\begin{methoddesc}{logout}{}
+ Shutdown connection to server. Returns server \samp{BYE} response.
+\end{methoddesc}
+
+\begin{methoddesc}{lsub}{directory='""', pattern='*'}
+ List subscribed mailbox names in directory matching
+ pattern. Returned data are tuples of message part envelope and data.
+\end{methoddesc}
+
+\begin{methoddesc}{recent}{}
+ Prompt server for an update. Returned data is \code{None} if no new
+ messages, else value of \samp{RECENT} response.
+\end{methoddesc}
+
+\begin{methoddesc}{rename}{oldmailbox, newmailbox}
+ Rename mailbox named \var{oldmailbox} to \var{newmailbox}.
+\end{methoddesc}
+
+\begin{methoddesc}{response}{code}
+ Return data for response \var{code} if received, or
+ \code{None}. Returns the given code, instead of the usual type.
+\end{methoddesc}
+
+\begin{methoddesc}{search}{charset, criteria}
+ Search mailbox for matching messages. Returned data contains a space
+ separated list of matching message numbers.
+\end{methoddesc}
+
+\begin{methoddesc}{select}{\optional{mailbox\optional{, readonly}}}
+ Select a mailbox. Returned data is the count of messages in
+ \var{mailbox} (\samp{EXISTS} response). The default \var{mailbox}
+ is \code{'INBOX'}. If the \var{readonly} flag is set, modifications
+ to the mailbox are not allowed.
+\end{methoddesc}
+
+\begin{methoddesc}{status}{mailbox, names}
+ Request named status conditions for \var{mailbox}.
+\end{methoddesc}
+
+\begin{methoddesc}{store}{message_set, command, flag_list}
+ Alters flag dispositions for messages in mailbox.
+\end{methoddesc}
+
+\begin{methoddesc}{subscribe}{mailbox}
+ Subscribe to new mailbox.
+\end{methoddesc}
+
+\begin{methoddesc}{uid}{command, args}
+ Execute command args with messages identified by UID, rather than
+ message number. Returns response appropriate to command.
+\end{methoddesc}
+
+\begin{methoddesc}{unsubscribe}{mailbox}
+ Unsubscribe from old mailbox.
+\end{methoddesc}
+
+\begin{methoddesc}{xatom}{name\optional{, arg1\optional{, arg2}}}
+ Allow simple extension commands notified by server in
+ \samp{CAPABILITY} response.
+\end{methoddesc}
+
+
+\class{IMAP4} instances have a variable \member{PROTOCOL_VERSION} that
+is set to the most recent supported protocol in the \samp{CAPABILITY}
+response.
+
+Finally, \class{IMAP4} instances have a variable debug which can be
+set to an integer to turn on debugging. Values greater than 3 trace
+each command.
+
+
+\subsection{IMAP4 Example}
+
+Here is a minimal example (without error checking) that opens a
+mailbox and retrieves and prints all messages:
+
+\begin{verbatim}
+import getpass, imaplib, string
+M = imaplib.IMAP4()
+M.LOGIN(getpass.getuser(), getpass.getpass())
+M.SELECT()
+typ, data = M.SEARCH(None, 'ALL')
+for num in string.split(data[0]):
+ typ, data - M.FETCH(num, '(RFC822)')
+ print 'Message %s\n%s\n' % (num, data[0][1])
+M.LOGOUT()
+\end{verbatim}
+
+Note that IMAP4 message numbers change as the mailbox changes, so it
+is highly advisable to use UIDs instead, with the UID command.
+
+At the end of the module, there is a test section that contains a more
+extensive example of usage.
+
+\begin{seealso}
+\seetext{Documents describing the protocol, and sources and binaries
+for servers implementing it, can all be found at the University of
+Washington's \emph{IMAP Information Center}
+(\url{http://www.cac.washington.edu/imap/}).}
+\end{seealso}