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authorBenjamin Peterson <benjamin@python.org>2008-06-12 22:15:50 (GMT)
committerBenjamin Peterson <benjamin@python.org>2008-06-12 22:15:50 (GMT)
commita0c0a4a2616e83084052a34c9806b3308f5799db (patch)
treed00f0e5b8caf161f0f1f8af11e608bfff05f3aa1 /Doc/library
parent83e9f4cd77f0cf4e47d505643c00b0dc3debace3 (diff)
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remove the rfc822 module
Diffstat (limited to 'Doc/library')
-rw-r--r--Doc/library/netdata.rst1
-rw-r--r--Doc/library/rfc822.rst351
2 files changed, 0 insertions, 352 deletions
diff --git a/Doc/library/netdata.rst b/Doc/library/netdata.rst
index ce35bfa..4915016 100644
--- a/Doc/library/netdata.rst
+++ b/Doc/library/netdata.rst
@@ -16,7 +16,6 @@ on the Internet.
mailcap.rst
mailbox.rst
mimetypes.rst
- rfc822.rst
base64.rst
binhex.rst
binascii.rst
diff --git a/Doc/library/rfc822.rst b/Doc/library/rfc822.rst
deleted file mode 100644
index 2b0ca30..0000000
--- a/Doc/library/rfc822.rst
+++ /dev/null
@@ -1,351 +0,0 @@
-
-:mod:`rfc822` --- Parse RFC 2822 mail headers
-=============================================
-
-.. module:: rfc822
- :synopsis: Parse 2822 style mail messages.
- :deprecated:
-
-
-.. deprecated:: 2.3
- The :mod:`email` package should be used in preference to the :mod:`rfc822`
- module. This module is present only to maintain backward compatibility.
-
-This module defines a class, :class:`Message`, which represents an "email
-message" as defined by the Internet standard :rfc:`2822`. [#]_ Such messages
-consist of a collection of message headers, and a message body. This module
-also defines a helper class :class:`AddressList` for parsing :rfc:`2822`
-addresses. Please refer to the RFC for information on the specific syntax of
-:rfc:`2822` messages.
-
-.. index:: module: mailbox
-
-The :mod:`mailbox` module provides classes to read mailboxes produced by
-various end-user mail programs.
-
-
-.. class:: Message(file[, seekable])
-
- A :class:`Message` instance is instantiated with an input object as parameter.
- Message relies only on the input object having a :meth:`readline` method; in
- particular, ordinary file objects qualify. Instantiation reads headers from the
- input object up to a delimiter line (normally a blank line) and stores them in
- the instance. The message body, following the headers, is not consumed.
-
- This class can work with any input object that supports a :meth:`readline`
- method. If the input object has seek and tell capability, the
- :meth:`rewindbody` method will work; also, illegal lines will be pushed back
- onto the input stream. If the input object lacks seek but has an :meth:`unread`
- method that can push back a line of input, :class:`Message` will use that to
- push back illegal lines. Thus this class can be used to parse messages coming
- from a buffered stream.
-
- The optional *seekable* argument is provided as a workaround for certain stdio
- libraries in which :cfunc:`tell` discards buffered data before discovering that
- the :cfunc:`lseek` system call doesn't work. For maximum portability, you
- should set the seekable argument to zero to prevent that initial :meth:`tell`
- when passing in an unseekable object such as a file object created from a socket
- object.
-
- Input lines as read from the file may either be terminated by CR-LF or by a
- single linefeed; a terminating CR-LF is replaced by a single linefeed before the
- line is stored.
-
- All header matching is done independent of upper or lower case; e.g.
- ``m['From']``, ``m['from']`` and ``m['FROM']`` all yield the same result.
-
-
-.. class:: AddressList(field)
-
- You may instantiate the :class:`AddressList` helper class using a single string
- parameter, a comma-separated list of :rfc:`2822` addresses to be parsed. (The
- parameter ``None`` yields an empty list.)
-
-
-.. function:: quote(str)
-
- Return a new string with backslashes in *str* replaced by two backslashes and
- double quotes replaced by backslash-double quote.
-
-
-.. function:: unquote(str)
-
- Return a new string which is an *unquoted* version of *str*. If *str* ends and
- begins with double quotes, they are stripped off. Likewise if *str* ends and
- begins with angle brackets, they are stripped off.
-
-
-.. function:: parseaddr(address)
-
- Parse *address*, which should be the value of some address-containing field such
- as :mailheader:`To` or :mailheader:`Cc`, into its constituent "realname" and
- "email address" parts. Returns a tuple of that information, unless the parse
- fails, in which case a 2-tuple ``(None, None)`` is returned.
-
-
-.. function:: dump_address_pair(pair)
-
- The inverse of :meth:`parseaddr`, this takes a 2-tuple of the form ``(realname,
- email_address)`` and returns the string value suitable for a :mailheader:`To` or
- :mailheader:`Cc` header. If the first element of *pair* is false, then the
- second element is returned unmodified.
-
-
-.. function:: parsedate(date)
-
- Attempts to parse a date according to the rules in :rfc:`2822`. however, some
- mailers don't follow that format as specified, so :func:`parsedate` tries to
- guess correctly in such cases. *date* is a string containing an :rfc:`2822`
- date, such as ``'Mon, 20 Nov 1995 19:12:08 -0500'``. If it succeeds in parsing
- the date, :func:`parsedate` returns a 9-tuple that can be passed directly to
- :func:`time.mktime`; otherwise ``None`` will be returned. Note that indexes 6,
- 7, and 8 of the result tuple are not usable.
-
-
-.. function:: parsedate_tz(date)
-
- Performs the same function as :func:`parsedate`, but returns either ``None`` or
- a 10-tuple; the first 9 elements make up a tuple that can be passed directly to
- :func:`time.mktime`, and the tenth is the offset of the date's timezone from UTC
- (which is the official term for Greenwich Mean Time). (Note that the sign of
- the timezone offset is the opposite of the sign of the ``time.timezone``
- variable for the same timezone; the latter variable follows the POSIX standard
- while this module follows :rfc:`2822`.) If the input string has no timezone,
- the last element of the tuple returned is ``None``. Note that indexes 6, 7, and
- 8 of the result tuple are not usable.
-
-
-.. function:: mktime_tz(tuple)
-
- Turn a 10-tuple as returned by :func:`parsedate_tz` into a UTC timestamp. If
- the timezone item in the tuple is ``None``, assume local time. Minor
- deficiency: this first interprets the first 8 elements as a local time and then
- compensates for the timezone difference; this may yield a slight error around
- daylight savings time switch dates. Not enough to worry about for common use.
-
-
-.. seealso::
-
- Module :mod:`email`
- Comprehensive email handling package; supersedes the :mod:`rfc822` module.
-
- Module :mod:`mailbox`
- Classes to read various mailbox formats produced by end-user mail programs.
-
-
-.. _message-objects:
-
-Message Objects
----------------
-
-A :class:`Message` instance has the following methods:
-
-
-.. method:: Message.rewindbody()
-
- Seek to the start of the message body. This only works if the file object is
- seekable.
-
-
-.. method:: Message.isheader(line)
-
- Returns a line's canonicalized fieldname (the dictionary key that will be used
- to index it) if the line is a legal :rfc:`2822` header; otherwise returns
- ``None`` (implying that parsing should stop here and the line be pushed back on
- the input stream). It is sometimes useful to override this method in a
- subclass.
-
-
-.. method:: Message.islast(line)
-
- Return true if the given line is a delimiter on which Message should stop. The
- delimiter line is consumed, and the file object's read location positioned
- immediately after it. By default this method just checks that the line is
- blank, but you can override it in a subclass.
-
-
-.. method:: Message.iscomment(line)
-
- Return ``True`` if the given line should be ignored entirely, just skipped. By
- default this is a stub that always returns ``False``, but you can override it in
- a subclass.
-
-
-.. method:: Message.getallmatchingheaders(name)
-
- Return a list of lines consisting of all headers matching *name*, if any. Each
- physical line, whether it is a continuation line or not, is a separate list
- item. Return the empty list if no header matches *name*.
-
-
-.. method:: Message.getfirstmatchingheader(name)
-
- Return a list of lines comprising the first header matching *name*, and its
- continuation line(s), if any. Return ``None`` if there is no header matching
- *name*.
-
-
-.. method:: Message.getrawheader(name)
-
- Return a single string consisting of the text after the colon in the first
- header matching *name*. This includes leading whitespace, the trailing
- linefeed, and internal linefeeds and whitespace if there any continuation
- line(s) were present. Return ``None`` if there is no header matching *name*.
-
-
-.. method:: Message.getheader(name[, default])
-
- Return a single string consisting of the last header matching *name*,
- but strip leading and trailing whitespace.
- Internal whitespace is not stripped. The optional *default* argument can be
- used to specify a different default to be returned when there is no header
- matching *name*; it defaults to ``None``.
- This is the preferred way to get parsed headers.
-
-
-.. method:: Message.get(name[, default])
-
- An alias for :meth:`getheader`, to make the interface more compatible with
- regular dictionaries.
-
-
-.. method:: Message.getaddr(name)
-
- Return a pair ``(full name, email address)`` parsed from the string returned by
- ``getheader(name)``. If no header matching *name* exists, return ``(None,
- None)``; otherwise both the full name and the address are (possibly empty)
- strings.
-
- Example: If *m*'s first :mailheader:`From` header contains the string
- ``'jack@cwi.nl (Jack Jansen)'``, then ``m.getaddr('From')`` will yield the pair
- ``('Jack Jansen', 'jack@cwi.nl')``. If the header contained ``'Jack Jansen
- <jack@cwi.nl>'`` instead, it would yield the exact same result.
-
-
-.. method:: Message.getaddrlist(name)
-
- This is similar to ``getaddr(list)``, but parses a header containing a list of
- email addresses (e.g. a :mailheader:`To` header) and returns a list of ``(full
- name, email address)`` pairs (even if there was only one address in the header).
- If there is no header matching *name*, return an empty list.
-
- If multiple headers exist that match the named header (e.g. if there are several
- :mailheader:`Cc` headers), all are parsed for addresses. Any continuation lines
- the named headers contain are also parsed.
-
-
-.. method:: Message.getdate(name)
-
- Retrieve a header using :meth:`getheader` and parse it into a 9-tuple compatible
- with :func:`time.mktime`; note that fields 6, 7, and 8 are not usable. If
- there is no header matching *name*, or it is unparsable, return ``None``.
-
- Date parsing appears to be a black art, and not all mailers adhere to the
- standard. While it has been tested and found correct on a large collection of
- email from many sources, it is still possible that this function may
- occasionally yield an incorrect result.
-
-
-.. method:: Message.getdate_tz(name)
-
- Retrieve a header using :meth:`getheader` and parse it into a 10-tuple; the
- first 9 elements will make a tuple compatible with :func:`time.mktime`, and the
- 10th is a number giving the offset of the date's timezone from UTC. Note that
- fields 6, 7, and 8 are not usable. Similarly to :meth:`getdate`, if there is
- no header matching *name*, or it is unparsable, return ``None``.
-
-:class:`Message` instances also support a limited mapping interface. In
-particular: ``m[name]`` is like ``m.getheader(name)`` but raises :exc:`KeyError`
-if there is no matching header; and ``len(m)``, ``m.get(name[, default])``,
-``m.__contains__(name)``, ``m.keys()``, ``m.values()`` ``m.items()``, and
-``m.setdefault(name[, default])`` act as expected, with the one difference
-that :meth:`setdefault` uses an empty string as the default value.
-:class:`Message` instances also support the mapping writable interface ``m[name]
-= value`` and ``del m[name]``. :class:`Message` objects do not support the
-:meth:`clear`, :meth:`copy`, :meth:`popitem`, or :meth:`update` methods of the
-mapping interface. (Support for :meth:`get` and :meth:`setdefault` was only
-added in Python 2.2.)
-
-Finally, :class:`Message` instances have some public instance variables:
-
-
-.. attribute:: Message.headers
-
- A list containing the entire set of header lines, in the order in which they
- were read (except that setitem calls may disturb this order). Each line contains
- a trailing newline. The blank line terminating the headers is not contained in
- the list.
-
-
-.. attribute:: Message.fp
-
- The file or file-like object passed at instantiation time. This can be used to
- read the message content.
-
-
-.. attribute:: Message.unixfrom
-
- The Unix ``From`` line, if the message had one, or an empty string. This is
- needed to regenerate the message in some contexts, such as an ``mbox``\ -style
- mailbox file.
-
-
-.. _addresslist-objects:
-
-AddressList Objects
--------------------
-
-An :class:`AddressList` instance has the following methods:
-
-
-.. method:: AddressList.__len__()
-
- Return the number of addresses in the address list.
-
-
-.. method:: AddressList.__str__()
-
- Return a canonicalized string representation of the address list. Addresses are
- rendered in "name" <host@domain> form, comma-separated.
-
-
-.. method:: AddressList.__add__(alist)
-
- Return a new :class:`AddressList` instance that contains all addresses in both
- :class:`AddressList` operands, with duplicates removed (set union).
-
-
-.. method:: AddressList.__iadd__(alist)
-
- In-place version of :meth:`__add__`; turns this :class:`AddressList` instance
- into the union of itself and the right-hand instance, *alist*.
-
-
-.. method:: AddressList.__sub__(alist)
-
- Return a new :class:`AddressList` instance that contains every address in the
- left-hand :class:`AddressList` operand that is not present in the right-hand
- address operand (set difference).
-
-
-.. method:: AddressList.__isub__(alist)
-
- In-place version of :meth:`__sub__`, removing addresses in this list which are
- also in *alist*.
-
-Finally, :class:`AddressList` instances have one public instance variable:
-
-
-.. attribute:: AddressList.addresslist
-
- A list of tuple string pairs, one per address. In each member, the first is the
- canonicalized name part, the second is the actual route-address (``'@'``\
- -separated username-host.domain pair).
-
-.. rubric:: Footnotes
-
-.. [#] This module originally conformed to :rfc:`822`, hence the name. Since then,
- :rfc:`2822` has been released as an update to :rfc:`822`. This module should be
- considered :rfc:`2822`\ -conformant, especially in cases where the syntax or
- semantics have changed since :rfc:`822`.
-