cpython/Doc/libmailbox.tex

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\section{Standard Module \sectcode{mailbox}}
\label{module-mailbox}
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\stmodindex{mailbox}
\setindexsubitem{(in module mailbox)}
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This module defines a number of classes that allow easy and uniform
access to mail messages in a (unix) mailbox.
\begin{funcdesc}{UnixMailbox}{fp}
Access a classic \UNIX{}-style mailbox, where all messages are contained
in a single file and separated by ``From name time'' lines.
The file object \var{fp} points to the mailbox file.
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\end{funcdesc}
\begin{funcdesc}{MmdfMailbox}{fp}
Access an MMDF-style mailbox, where all messages are contained
in a single file and separated by lines consisting of 4 control-A
characters. The file object \var{fp} points to the mailbox file.
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\end{funcdesc}
\begin{funcdesc}{MHMailbox}{dirname}
Access an MH mailbox, a directory with each message in a separate
file with a numeric name.
The name of the mailbox directory is passed in \var{dirname}.
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\end{funcdesc}
\subsection{Mailbox Objects}
All implementations of Mailbox objects have one externally visible
method:
\begin{funcdesc}{next}{}
Return the next message in the mailbox, as a \code{rfc822.Message} object.
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Depending on the mailbox implementation the \var{fp} attribute of this
object may be a true file object or a class instance simulating a file object,
taking care of things like message boundaries if multiple mail messages are
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contained in a single file, etc.
\end{funcdesc}