Kaydet (Commit) 319f3a10 authored tarafından Serhiy Storchaka's avatar Serhiy Storchaka

Issue #18761: Improved cross-references in email documentation.

......@@ -234,5 +234,5 @@ new entries to the global character set, alias, and codec registries:
*charset* is the canonical name of a character set. *codecname* is the name of a
Python codec, as appropriate for the second argument to the :class:`str`'s
:func:`decode` method
:meth:`~str.encode` method
......@@ -25,7 +25,8 @@ The following exception classes are defined in the :mod:`email.errors` module:
Raised under some error conditions when parsing the :rfc:`2822` headers of a
message, this class is derived from :exc:`MessageParseError`. It can be raised
from the :meth:`Parser.parse` or :meth:`Parser.parsestr` methods.
from the :meth:`Parser.parse <email.parser.Parser.parse>` or
:meth:`Parser.parsestr <email.parser.Parser.parsestr>` methods.
Situations where it can be raised include finding an envelope header after the
first :rfc:`2822` header of the message, finding a continuation line before the
......@@ -37,7 +38,8 @@ The following exception classes are defined in the :mod:`email.errors` module:
Raised under some error conditions when parsing the :rfc:`2822` headers of a
message, this class is derived from :exc:`MessageParseError`. It can be raised
from the :meth:`Parser.parse` or :meth:`Parser.parsestr` methods.
from the :meth:`Parser.parse <email.parser.Parser.parse>` or
:meth:`Parser.parsestr <email.parser.Parser.parsestr>` methods.
Situations where it can be raised include not being able to find the starting or
terminating boundary in a :mimetype:`multipart/\*` message when strict parsing
......@@ -46,19 +48,20 @@ The following exception classes are defined in the :mod:`email.errors` module:
.. exception:: MultipartConversionError()
Raised when a payload is added to a :class:`Message` object using
:meth:`add_payload`, but the payload is already a scalar and the message's
:mailheader:`Content-Type` main type is not either :mimetype:`multipart` or
missing. :exc:`MultipartConversionError` multiply inherits from
:exc:`MessageError` and the built-in :exc:`TypeError`.
Raised when a payload is added to a :class:`~email.message.Message` object
using :meth:`add_payload`, but the payload is already a scalar and the
message's :mailheader:`Content-Type` main type is not either
:mimetype:`multipart` or missing. :exc:`MultipartConversionError` multiply
inherits from :exc:`MessageError` and the built-in :exc:`TypeError`.
Since :meth:`Message.add_payload` is deprecated, this exception is rarely raised
in practice. However the exception may also be raised if the :meth:`attach`
Since :meth:`Message.add_payload` is deprecated, this exception is rarely
raised in practice. However the exception may also be raised if the
:meth:`~email.message.Message.attach`
method is called on an instance of a class derived from
:class:`~email.mime.nonmultipart.MIMENonMultipart` (e.g.
:class:`~email.mime.image.MIMEImage`).
Here's the list of the defects that the :class:`~email.mime.parser.FeedParser`
Here's the list of the defects that the :class:`~email.parser.FeedParser`
can find while parsing messages. Note that the defects are added to the message
where the problem was found, so for example, if a message nested inside a
:mimetype:`multipart/alternative` had a malformed header, that nested message
......@@ -97,9 +100,9 @@ this class is *not* an exception!
This defect has not been used for several Python versions.
* :class:`MultipartInvariantViolationDefect` -- A message claimed to be a
:mimetype:`multipart`, but no subparts were found. Note that when a message has
this defect, its :meth:`is_multipart` method may return false even though its
content type claims to be :mimetype:`multipart`.
:mimetype:`multipart`, but no subparts were found. Note that when a message
has this defect, its :meth:`~email.message.Message.is_multipart` method may
return false even though its content type claims to be :mimetype:`multipart`.
* :class:`InvalidBase64PaddingDefect` -- When decoding a block of base64
enocded bytes, the padding was not correct. Enough padding is added to
......
......@@ -56,15 +56,16 @@ headers.
.. attribute:: name
The name of the header (the portion of the field before the ':'). This
is exactly the value passed in the :attr:`~EmailPolicy.header_factory`
call for *name*; that is, case is preserved.
is exactly the value passed in the
:attr:`~email.policy.EmailPolicy.header_factory` call for *name*; that
is, case is preserved.
.. attribute:: defects
A tuple of :exc:`~email.errors.HeaderDefect` instances reporting any
RFC compliance problems found during parsing. The email package tries to
be complete about detecting compliance issues. See the :mod:`errors`
be complete about detecting compliance issues. See the :mod:`~email.errors`
module for a discussion of the types of defects that may be reported.
......@@ -230,8 +231,8 @@ headers.
The single address encoded by the header value. If the header value
actually contains more than one address (which would be a violation of
the RFC under the default :mod:`policy`), accessing this attribute will
result in a :exc:`ValueError`.
the RFC under the default :mod:`~email.policy`), accessing this attribute
will result in a :exc:`ValueError`.
Many of the above classes also have a ``Unique`` variant (for example,
......@@ -275,7 +276,7 @@ variant, :attr:`~.BaseHeader.max_count` is set to 1.
.. class:: ContentTypeHeader
A :class:`ParameterizedMIMEHheader` class that handles the
A :class:`ParameterizedMIMEHeader` class that handles the
:mailheader:`Content-Type` header.
.. attribute:: content_type
......@@ -289,7 +290,7 @@ variant, :attr:`~.BaseHeader.max_count` is set to 1.
.. class:: ContentDispositionHeader
A :class:`ParameterizedMIMEHheader` class that handles the
A :class:`ParameterizedMIMEHeader` class that handles the
:mailheader:`Content-Disposition` header.
.. attribute:: content-disposition
......
......@@ -6,8 +6,9 @@
Iterating over a message object tree is fairly easy with the
:meth:`Message.walk` method. The :mod:`email.iterators` module provides some
useful higher level iterations over message object trees.
:meth:`Message.walk <email.message.Message.walk>` method. The
:mod:`email.iterators` module provides some useful higher level iterations over
message object trees.
.. function:: body_line_iterator(msg, decode=False)
......@@ -16,9 +17,11 @@ useful higher level iterations over message object trees.
string payloads line-by-line. It skips over all the subpart headers, and it
skips over any subpart with a payload that isn't a Python string. This is
somewhat equivalent to reading the flat text representation of the message from
a file using :meth:`readline`, skipping over all the intervening headers.
a file using :meth:`~io.TextIOBase.readline`, skipping over all the
intervening headers.
Optional *decode* is passed through to :meth:`Message.get_payload`.
Optional *decode* is passed through to :meth:`Message.get_payload
<email.message.Message.get_payload>`.
.. function:: typed_subpart_iterator(msg, maintype='text', subtype=None)
......
......@@ -62,8 +62,8 @@ Here are the methods of the :class:`Message` class:
format the message the way you want. For example, by default it does
not do the mangling of lines that begin with ``From`` that is
required by the unix mbox format. For more flexibility, instantiate a
:class:`~email.generator.Generator` instance and use its :meth:`flatten`
method directly. For example::
:class:`~email.generator.Generator` instance and use its
:meth:`~email.generator.Generator.flatten` method directly. For example::
from io import StringIO
from email.generator import Generator
......@@ -105,7 +105,8 @@ Here are the methods of the :class:`Message` class:
not do the mangling of lines that begin with ``From`` that is
required by the unix mbox format. For more flexibility, instantiate a
:class:`~email.generator.BytesGenerator` instance and use its
:meth:`flatten` method directly. For example::
:meth:`~email.generator.BytesGenerator.flatten` method directly.
For example::
from io import BytesIO
from email.generator import BytesGenerator
......@@ -530,8 +531,8 @@ Here are the methods of the :class:`Message` class:
Set the ``boundary`` parameter of the :mailheader:`Content-Type` header to
*boundary*. :meth:`set_boundary` will always quote *boundary* if
necessary. A :exc:`HeaderParseError` is raised if the message object has
no :mailheader:`Content-Type` header.
necessary. A :exc:`~email.errors.HeaderParseError` is raised if the
message object has no :mailheader:`Content-Type` header.
Note that using this method is subtly different than deleting the old
:mailheader:`Content-Type` header and adding a new one with the new
......@@ -627,7 +628,8 @@ Here are the methods of the :class:`Message` class:
the end of the message.
You do not need to set the epilogue to the empty string in order for the
:class:`Generator` to print a newline at the end of the file.
:class:`~email.generator.Generator` to print a newline at the end of the
file.
.. attribute:: defects
......
......@@ -35,7 +35,8 @@ Here are the classes:
*_maintype* is the :mailheader:`Content-Type` major type (e.g. :mimetype:`text`
or :mimetype:`image`), and *_subtype* is the :mailheader:`Content-Type` minor
type (e.g. :mimetype:`plain` or :mimetype:`gif`). *_params* is a parameter
key/value dictionary and is passed directly to :meth:`Message.add_header`.
key/value dictionary and is passed directly to :meth:`Message.add_header
<email.message.Message.add_header>`.
The :class:`MIMEBase` class always adds a :mailheader:`Content-Type` header
(based on *_maintype*, *_subtype*, and *_params*), and a
......@@ -50,8 +51,9 @@ Here are the classes:
A subclass of :class:`~email.mime.base.MIMEBase`, this is an intermediate base
class for MIME messages that are not :mimetype:`multipart`. The primary
purpose of this class is to prevent the use of the :meth:`attach` method,
which only makes sense for :mimetype:`multipart` messages. If :meth:`attach`
purpose of this class is to prevent the use of the
:meth:`~email.message.Message.attach` method, which only makes sense for
:mimetype:`multipart` messages. If :meth:`~email.message.Message.attach`
is called, a :exc:`~email.errors.MultipartConversionError` exception is raised.
......@@ -74,7 +76,8 @@ Here are the classes:
*_subparts* is a sequence of initial subparts for the payload. It must be
possible to convert this sequence to a list. You can always attach new subparts
to the message by using the :meth:`Message.attach` method.
to the message by using the :meth:`Message.attach
<email.message.Message.attach>` method.
Additional parameters for the :mailheader:`Content-Type` header are taken from
the keyword arguments, or passed into the *_params* argument, which is a keyword
......@@ -95,8 +98,10 @@ Here are the classes:
Optional *_encoder* is a callable (i.e. function) which will perform the actual
encoding of the data for transport. This callable takes one argument, which is
the :class:`MIMEApplication` instance. It should use :meth:`get_payload` and
:meth:`set_payload` to change the payload to encoded form. It should also add
the :class:`MIMEApplication` instance. It should use
:meth:`~email.message.Message.get_payload` and
:meth:`~email.message.Message.set_payload` to change the payload to encoded
form. It should also add
any :mailheader:`Content-Transfer-Encoding` or other headers to the message
object as necessary. The default encoding is base64. See the
:mod:`email.encoders` module for a list of the built-in encoders.
......@@ -121,8 +126,10 @@ Here are the classes:
Optional *_encoder* is a callable (i.e. function) which will perform the actual
encoding of the audio data for transport. This callable takes one argument,
which is the :class:`MIMEAudio` instance. It should use :meth:`get_payload` and
:meth:`set_payload` to change the payload to encoded form. It should also add
which is the :class:`MIMEAudio` instance. It should use
:meth:`~email.message.Message.get_payload` and
:meth:`~email.message.Message.set_payload` to change the payload to encoded
form. It should also add
any :mailheader:`Content-Transfer-Encoding` or other headers to the message
object as necessary. The default encoding is base64. See the
:mod:`email.encoders` module for a list of the built-in encoders.
......@@ -147,8 +154,10 @@ Here are the classes:
Optional *_encoder* is a callable (i.e. function) which will perform the actual
encoding of the image data for transport. This callable takes one argument,
which is the :class:`MIMEImage` instance. It should use :meth:`get_payload` and
:meth:`set_payload` to change the payload to encoded form. It should also add
which is the :class:`MIMEImage` instance. It should use
:meth:`~email.message.Message.get_payload` and
:meth:`~email.message.Message.set_payload` to change the payload to encoded
form. It should also add
any :mailheader:`Content-Transfer-Encoding` or other headers to the message
object as necessary. The default encoding is base64. See the
:mod:`email.encoders` module for a list of the built-in encoders.
......
......@@ -7,7 +7,8 @@
Message object structures can be created in one of two ways: they can be created
from whole cloth by instantiating :class:`~email.message.Message` objects and
stringing them together via :meth:`attach` and :meth:`set_payload` calls, or they
stringing them together via :meth:`~email.message.Message.attach` and
:meth:`~email.message.Message.set_payload` calls, or they
can be created by parsing a flat text representation of the email message.
The :mod:`email` package provides a standard parser that understands most email
......@@ -16,8 +17,9 @@ or a file object, and the parser will return to you the root
:class:`~email.message.Message` instance of the object structure. For simple,
non-MIME messages the payload of this root object will likely be a string
containing the text of the message. For MIME messages, the root object will
return ``True`` from its :meth:`is_multipart` method, and the subparts can be
accessed via the :meth:`get_payload` and :meth:`walk` methods.
return ``True`` from its :meth:`~email.message.Message.is_multipart` method, and
the subparts can be accessed via the :meth:`~email.message.Message.get_payload`
and :meth:`~email.message.Message.walk` methods.
There are actually two parser interfaces available for use, the classic
:class:`Parser` API and the incremental :class:`FeedParser` API. The classic
......@@ -134,7 +136,8 @@ have the same API as the :class:`Parser` and :class:`BytesParser` classes.
Read all the data from the file-like object *fp*, parse the resulting
text, and return the root message object. *fp* must support both the
:meth:`readline` and the :meth:`read` methods on file-like objects.
:meth:`~io.TextIOBase.readline` and the :meth:`~io.TextIOBase.read`
methods on file-like objects.
The text contained in *fp* must be formatted as a block of :rfc:`2822`
style headers and header continuation lines, optionally preceded by a
......@@ -173,8 +176,8 @@ have the same API as the :class:`Parser` and :class:`BytesParser` classes.
Read all the data from the binary file-like object *fp*, parse the
resulting bytes, and return the message object. *fp* must support
both the :meth:`readline` and the :meth:`read` methods on file-like
objects.
both the :meth:`~io.IOBase.readline` and the :meth:`~io.IOBase.read`
methods on file-like objects.
The bytes contained in *fp* must be formatted as a block of :rfc:`2822`
style headers and header continuation lines, optionally preceded by a
......@@ -210,7 +213,7 @@ in the top-level :mod:`email` package namespace.
Return a message object structure from a string. This is exactly equivalent to
``Parser().parsestr(s)``. *_class* and *policy* are interpreted as
with the :class:`Parser` class constructor.
with the :class:`~email.parser.Parser` class constructor.
.. versionchanged:: 3.3
Removed the *strict* argument. Added the *policy* keyword.
......@@ -220,7 +223,8 @@ in the top-level :mod:`email` package namespace.
Return a message object structure from a byte string. This is exactly
equivalent to ``BytesParser().parsebytes(s)``. Optional *_class* and
*strict* are interpreted as with the :class:`Parser` class constructor.
*strict* are interpreted as with the :class:`~email.parser.Parser` class
constructor.
.. versionadded:: 3.2
.. versionchanged:: 3.3
......@@ -231,7 +235,8 @@ in the top-level :mod:`email` package namespace.
Return a message object structure tree from an open :term:`file object`.
This is exactly equivalent to ``Parser().parse(fp)``. *_class*
and *policy* are interpreted as with the :class:`Parser` class constructor.
and *policy* are interpreted as with the :class:`~email.parser.Parser` class
constructor.
.. versionchanged::
Removed the *strict* argument. Added the *policy* keyword.
......@@ -241,8 +246,8 @@ in the top-level :mod:`email` package namespace.
Return a message object structure tree from an open binary :term:`file
object`. This is exactly equivalent to ``BytesParser().parse(fp)``.
*_class* and *policy* are interpreted as with the :class:`Parser`
class constructor.
*_class* and *policy* are interpreted as with the
:class:`~email.parser.Parser` class constructor.
.. versionadded:: 3.2
.. versionchanged:: 3.3
......@@ -261,32 +266,35 @@ Here are some notes on the parsing semantics:
* Most non-\ :mimetype:`multipart` type messages are parsed as a single message
object with a string payload. These objects will return ``False`` for
:meth:`is_multipart`. Their :meth:`get_payload` method will return a string
object.
:meth:`~email.message.Message.is_multipart`. Their
:meth:`~email.message.Message.get_payload` method will return a string object.
* All :mimetype:`multipart` type messages will be parsed as a container message
object with a list of sub-message objects for their payload. The outer
container message will return ``True`` for :meth:`is_multipart` and their
:meth:`get_payload` method will return the list of :class:`~email.message.Message`
subparts.
container message will return ``True`` for
:meth:`~email.message.Message.is_multipart` and their
:meth:`~email.message.Message.get_payload` method will return the list of
:class:`~email.message.Message` subparts.
* Most messages with a content type of :mimetype:`message/\*` (e.g.
:mimetype:`message/delivery-status` and :mimetype:`message/rfc822`) will also be
parsed as container object containing a list payload of length 1. Their
:meth:`is_multipart` method will return ``True``. The single element in the
list payload will be a sub-message object.
:meth:`~email.message.Message.is_multipart` method will return ``True``.
The single element in the list payload will be a sub-message object.
* Some non-standards compliant messages may not be internally consistent about
their :mimetype:`multipart`\ -edness. Such messages may have a
:mailheader:`Content-Type` header of type :mimetype:`multipart`, but their
:meth:`is_multipart` method may return ``False``. If such messages were parsed
with the :class:`FeedParser`, they will have an instance of the
:class:`MultipartInvariantViolationDefect` class in their *defects* attribute
list. See :mod:`email.errors` for details.
:meth:`~email.message.Message.is_multipart` method may return ``False``.
If such messages were parsed with the :class:`~email.parser.FeedParser`,
they will have an instance of the
:class:`~email.errors.MultipartInvariantViolationDefect` class in their
*defects* attribute list. See :mod:`email.errors` for details.
.. rubric:: Footnotes
.. [#] As of email package version 3.0, introduced in Python 2.4, the classic
:class:`Parser` was re-implemented in terms of the :class:`FeedParser`, so the
semantics and results are identical between the two parsers.
:class:`~email.parser.Parser` was re-implemented in terms of the
:class:`~email.parser.FeedParser`, so the semantics and results are
identical between the two parsers.
......@@ -315,7 +315,7 @@ added matters. To illustrate::
This concrete :class:`Policy` is the backward compatibility policy. It
replicates the behavior of the email package in Python 3.2. The
:mod:`policy` module also defines an instance of this class,
:mod:`~email.policy` module also defines an instance of this class,
:const:`compat32`, that is used as the default policy. Thus the default
behavior of the email package is to maintain compatibility with Python 3.2.
......@@ -459,10 +459,11 @@ added matters. To illustrate::
.. method:: fold_binary(name, value)
The same as :meth:`fold` if :attr:`cte_type` is ``7bit``, except that
the returned value is bytes.
The same as :meth:`fold` if :attr:`~Policy.cte_type` is ``7bit``, except
that the returned value is bytes.
If :attr:`cte_type` is ``8bit``, non-ASCII binary data is converted back
If :attr:`~Policy.cte_type` is ``8bit``, non-ASCII binary data is
converted back
into bytes. Headers with binary data are not refolded, regardless of the
``refold_header`` setting, since there is no way to know whether the
binary data consists of single byte characters or multibyte characters.
......
This diff is collapsed.
......@@ -49,8 +49,8 @@ There are several useful utilities provided in the :mod:`email.utils` module:
This method returns a list of 2-tuples of the form returned by ``parseaddr()``.
*fieldvalues* is a sequence of header field values as might be returned by
:meth:`Message.get_all`. Here's a simple example that gets all the recipients
of a message::
:meth:`Message.get_all <email.message.Message.get_all>`. Here's a simple
example that gets all the recipients of a message::
from email.utils import getaddresses
......@@ -187,10 +187,11 @@ There are several useful utilities provided in the :mod:`email.utils` module:
.. function:: collapse_rfc2231_value(value, errors='replace', fallback_charset='us-ascii')
When a header parameter is encoded in :rfc:`2231` format,
:meth:`Message.get_param` may return a 3-tuple containing the character set,
:meth:`Message.get_param <email.message.Message.get_param>` may return a
3-tuple containing the character set,
language, and value. :func:`collapse_rfc2231_value` turns this into a unicode
string. Optional *errors* is passed to the *errors* argument of :class:`str`'s
:func:`encode` method; it defaults to ``'replace'``. Optional
:func:`~str.encode` method; it defaults to ``'replace'``. Optional
*fallback_charset* specifies the character set to use if the one in the
:rfc:`2231` header is not known by Python; it defaults to ``'us-ascii'``.
......
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