email.message.po

# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001-2022, Python Software Foundation
# This file is distributed under the same license as the Python package.
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# Translators:
msgid ""
msgstr ""
"Project-Id-Version: Python 3.13\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2024-09-03 11:11+0800\n"
"PO-Revision-Date: 2018-05-23 14:44+0000\n"
"Last-Translator: Adrian Liaw <adrianliaw2000@gmail.com>\n"
"Language-Team: Chinese - TAIWAN (https://github.com/python/python-docs-zh-"
"tw)\n"
"Language: zh_TW\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=1; plural=0;\n"

#: ../../library/email.message.rst:2
msgid ":mod:`!email.message`: Representing an email message"
msgstr ":mod:`!email.message`：表示電子郵件訊息"

#: ../../library/email.message.rst:10
msgid "**Source code:** :source:`Lib/email/message.py`"
msgstr "**原始碼：**\\ :source:`Lib/email/message.py`"

#: ../../library/email.message.rst:14
msgid "[1]_"
msgstr "[1]_"

#: ../../library/email.message.rst:16
msgid ""
"The central class in the :mod:`email` package is the :class:`EmailMessage` "
"class, imported from the :mod:`email.message` module.  It is the base class "
"for the :mod:`email` object model.  :class:`EmailMessage` provides the core "
"functionality for setting and querying header fields, for accessing message "
"bodies, and for creating or modifying structured messages."
msgstr ""

#: ../../library/email.message.rst:22
msgid ""
"An email message consists of *headers* and a *payload* (which is also "
"referred to as the *content*).  Headers are :rfc:`5322` or :rfc:`6532` style "
"field names and values, where the field name and value are separated by a "
"colon.  The colon is not part of either the field name or the field value.  "
"The payload may be a simple text message, or a binary object, or a "
"structured sequence of sub-messages each with their own set of headers and "
"their own payload.  The latter type of payload is indicated by the message "
"having a MIME type such as :mimetype:`multipart/\\*` or :mimetype:`message/"
"rfc822`."
msgstr ""

#: ../../library/email.message.rst:31
msgid ""
"The conceptual model provided by an :class:`EmailMessage` object is that of "
"an ordered dictionary of headers coupled with a *payload* that represents "
"the :rfc:`5322` body of the message, which might be a list of sub-"
"``EmailMessage`` objects.  In addition to the normal dictionary methods for "
"accessing the header names and values, there are methods for accessing "
"specialized information from the headers (for example the MIME content "
"type), for operating on the payload, for generating a serialized version of "
"the message, and for recursively walking over the object tree."
msgstr ""

#: ../../library/email.message.rst:40
msgid ""
"The :class:`EmailMessage` dictionary-like interface is indexed by the header "
"names, which must be ASCII values.  The values of the dictionary are strings "
"with some extra methods.  Headers are stored and returned in case-preserving "
"form, but field names are matched case-insensitively.  The keys are ordered, "
"but unlike a real dict, there can be duplicates.  Additional methods are "
"provided for working with headers that have duplicate keys."
msgstr ""

#: ../../library/email.message.rst:47
msgid ""
"The *payload* is either a string or bytes object, in the case of simple "
"message objects, or a list of :class:`EmailMessage` objects, for MIME "
"container documents such as :mimetype:`multipart/\\*` and :mimetype:`message/"
"rfc822` message objects."
msgstr ""

#: ../../library/email.message.rst:55
msgid ""
"If *policy* is specified use the rules it specifies to update and serialize "
"the representation of the message.  If *policy* is not set, use the :class:"
"`~email.policy.default` policy, which follows the rules of the email RFCs "
"except for line endings (instead of the RFC mandated ``\\r\\n``, it uses the "
"Python standard ``\\n`` line endings).  For more information see the :mod:"
"`~email.policy` documentation."
msgstr ""

#: ../../library/email.message.rst:64
msgid ""
"Return the entire message flattened as a string.  When optional *unixfrom* "
"is true, the envelope header is included in the returned string.  *unixfrom* "
"defaults to ``False``.  For backward compatibility with the base :class:"
"`~email.message.Message` class *maxheaderlen* is accepted, but defaults to "
"``None``, which means that by default the line length is controlled by the :"
"attr:`~email.policy.Policy.max_line_length` of the policy.  The *policy* "
"argument may be used to override the default policy obtained from the "
"message instance.  This can be used to control some of the formatting "
"produced by the method, since the specified *policy* will be passed to the :"
"class:`~email.generator.Generator`."
msgstr ""

#: ../../library/email.message.rst:76 ../../library/email.message.rst:114
msgid ""
"Flattening the message may trigger changes to the :class:`EmailMessage` if "
"defaults need to be filled in to complete the transformation to a string "
"(for example, MIME boundaries may be generated or modified)."
msgstr ""

#: ../../library/email.message.rst:80
msgid ""
"Note that this method is provided as a convenience and may not be the most "
"useful way to serialize messages in your application, especially if you are "
"dealing with multiple messages.  See :class:`email.generator.Generator` for "
"a more flexible API for serializing messages.  Note also that this method is "
"restricted to producing messages serialized as \"7 bit clean\" when :attr:"
"`~email.policy.EmailPolicy.utf8` is ``False``, which is the default."
msgstr ""

#: ../../library/email.message.rst:88
msgid ""
"the default behavior when *maxheaderlen* is not specified was changed from "
"defaulting to 0 to defaulting to the value of *max_line_length* from the "
"policy."
msgstr ""

#: ../../library/email.message.rst:95
msgid ""
"Equivalent to ``as_string(policy=self.policy.clone(utf8=True))``.  Allows "
"``str(msg)`` to produce a string containing the serialized message in a "
"readable format."
msgstr ""

#: ../../library/email.message.rst:99
msgid ""
"the method was changed to use ``utf8=True``, thus producing an :rfc:`6531`-"
"like message representation, instead of being a direct alias for :meth:"
"`as_string`."
msgstr ""

#: ../../library/email.message.rst:106
msgid ""
"Return the entire message flattened as a bytes object.  When optional "
"*unixfrom* is true, the envelope header is included in the returned string.  "
"*unixfrom* defaults to ``False``.  The *policy* argument may be used to "
"override the default policy obtained from the message instance. This can be "
"used to control some of the formatting produced by the method, since the "
"specified *policy* will be passed to the :class:`~email.generator."
"BytesGenerator`."
msgstr ""

#: ../../library/email.message.rst:118
msgid ""
"Note that this method is provided as a convenience and may not be the most "
"useful way to serialize messages in your application, especially if you are "
"dealing with multiple messages.  See :class:`email.generator.BytesGenerator` "
"for a more flexible API for serializing messages."
msgstr ""

#: ../../library/email.message.rst:127
msgid ""
"Equivalent to :meth:`.as_bytes`.  Allows ``bytes(msg)`` to produce a bytes "
"object containing the serialized message."
msgstr ""

#: ../../library/email.message.rst:133
msgid ""
"Return ``True`` if the message's payload is a list of sub-\\ :class:"
"`EmailMessage` objects, otherwise return ``False``.  When :meth:"
"`is_multipart` returns ``False``, the payload should be a string object "
"(which might be a CTE encoded binary payload).  Note that :meth:"
"`is_multipart` returning ``True`` does not necessarily mean that \"msg."
"get_content_maintype() == 'multipart'\" will return the ``True``. For "
"example, ``is_multipart`` will return ``True`` when the :class:"
"`EmailMessage` is of type ``message/rfc822``."
msgstr ""

#: ../../library/email.message.rst:145
msgid ""
"Set the message's envelope header to *unixfrom*, which should be a string.  "
"(See :class:`~mailbox.mboxMessage` for a brief description of this header.)"
msgstr ""

#: ../../library/email.message.rst:152
msgid ""
"Return the message's envelope header.  Defaults to ``None`` if the envelope "
"header was never set."
msgstr ""

#: ../../library/email.message.rst:156
msgid ""
"The following methods implement the mapping-like interface for accessing the "
"message's headers.  Note that there are some semantic differences between "
"these methods and a normal mapping (i.e. dictionary) interface.  For "
"example, in a dictionary there are no duplicate keys, but here there may be "
"duplicate message headers.  Also, in dictionaries there is no guaranteed "
"order to the keys returned by :meth:`keys`, but in an :class:`EmailMessage` "
"object, headers are always returned in the order they appeared in the "
"original message, or in which they were added to the message later.  Any "
"header deleted and then re-added is always appended to the end of the header "
"list."
msgstr ""

#: ../../library/email.message.rst:167
msgid ""
"These semantic differences are intentional and are biased toward convenience "
"in the most common use cases."
msgstr ""

#: ../../library/email.message.rst:170
msgid ""
"Note that in all cases, any envelope header present in the message is not "
"included in the mapping interface."
msgstr ""

#: ../../library/email.message.rst:176
msgid "Return the total number of headers, including duplicates."
msgstr ""

#: ../../library/email.message.rst:181
msgid ""
"Return ``True`` if the message object has a field named *name*. Matching is "
"done without regard to case and *name* does not include the trailing colon.  "
"Used for the ``in`` operator.  For example::"
msgstr ""

#: ../../library/email.message.rst:185
msgid ""
"if 'message-id' in myMessage:\n"
"   print('Message-ID:', myMessage['message-id'])"
msgstr ""
"if 'message-id' in myMessage:\n"
"   print('Message-ID:', myMessage['message-id'])"

#: ../../library/email.message.rst:191
msgid ""
"Return the value of the named header field.  *name* does not include the "
"colon field separator.  If the header is missing, ``None`` is returned; a :"
"exc:`KeyError` is never raised."
msgstr ""

#: ../../library/email.message.rst:195
msgid ""
"Note that if the named field appears more than once in the message's "
"headers, exactly which of those field values will be returned is undefined.  "
"Use the :meth:`get_all` method to get the values of all the extant headers "
"named *name*."
msgstr ""

#: ../../library/email.message.rst:200
msgid ""
"Using the standard (non-``compat32``) policies, the returned value is an "
"instance of a subclass of :class:`email.headerregistry.BaseHeader`."
msgstr ""

#: ../../library/email.message.rst:206
msgid ""
"Add a header to the message with field name *name* and value *val*.  The "
"field is appended to the end of the message's existing headers."
msgstr ""

#: ../../library/email.message.rst:209
msgid ""
"Note that this does *not* overwrite or delete any existing header with the "
"same name.  If you want to ensure that the new header is the only one "
"present in the message with field name *name*, delete the field first, e.g.::"
msgstr ""

#: ../../library/email.message.rst:213
msgid ""
"del msg['subject']\n"
"msg['subject'] = 'Python roolz!'"
msgstr ""
"del msg['subject']\n"
"msg['subject'] = 'Python roolz!'"

#: ../../library/email.message.rst:216
msgid ""
"If the :mod:`policy <email.policy>` defines certain headers to be unique (as "
"the standard policies do), this method may raise a :exc:`ValueError` when an "
"attempt is made to assign a value to such a header when one already exists.  "
"This behavior is intentional for consistency's sake, but do not depend on it "
"as we may choose to make such assignments do an automatic deletion of the "
"existing header in the future."
msgstr ""

#: ../../library/email.message.rst:226
msgid ""
"Delete all occurrences of the field with name *name* from the message's "
"headers.  No exception is raised if the named field isn't present in the "
"headers."
msgstr ""

#: ../../library/email.message.rst:233
msgid "Return a list of all the message's header field names."
msgstr ""

#: ../../library/email.message.rst:238
msgid "Return a list of all the message's field values."
msgstr ""

#: ../../library/email.message.rst:243
msgid ""
"Return a list of 2-tuples containing all the message's field headers and "
"values."
msgstr ""

#: ../../library/email.message.rst:249
msgid ""
"Return the value of the named header field.  This is identical to :meth:"
"`~object.__getitem__` except that optional *failobj* is returned if the "
"named header is missing (*failobj* defaults to ``None``)."
msgstr ""

#: ../../library/email.message.rst:254
msgid "Here are some additional useful header related methods:"
msgstr ""

#: ../../library/email.message.rst:259
msgid ""
"Return a list of all the values for the field named *name*. If there are no "
"such named headers in the message, *failobj* is returned (defaults to "
"``None``)."
msgstr ""

#: ../../library/email.message.rst:266
msgid ""
"Extended header setting.  This method is similar to :meth:`__setitem__` "
"except that additional header parameters can be provided as keyword "
"arguments.  *_name* is the header field to add and *_value* is the *primary* "
"value for the header."
msgstr ""

#: ../../library/email.message.rst:271
msgid ""
"For each item in the keyword argument dictionary *_params*, the key is taken "
"as the parameter name, with underscores converted to dashes (since dashes "
"are illegal in Python identifiers).  Normally, the parameter will be added "
"as ``key=\"value\"`` unless the value is ``None``, in which case only the "
"key will be added."
msgstr ""

#: ../../library/email.message.rst:277
msgid ""
"If the value contains non-ASCII characters, the charset and language may be "
"explicitly controlled by specifying the value as a three tuple in the format "
"``(CHARSET, LANGUAGE, VALUE)``, where ``CHARSET`` is a string naming the "
"charset to be used to encode the value, ``LANGUAGE`` can usually be set to "
"``None`` or the empty string (see :rfc:`2231` for other possibilities), and "
"``VALUE`` is the string value containing non-ASCII code points.  If a three "
"tuple is not passed and the value contains non-ASCII characters, it is "
"automatically encoded in :rfc:`2231` format using a ``CHARSET`` of ``utf-8`` "
"and a ``LANGUAGE`` of ``None``."
msgstr ""

#: ../../library/email.message.rst:287
msgid "Here is an example::"
msgstr "以下是個範例： ::"

#: ../../library/email.message.rst:289
msgid "msg.add_header('Content-Disposition', 'attachment', filename='bud.gif')"
msgstr ""
"msg.add_header('Content-Disposition', 'attachment', filename='bud.gif')"

#: ../../library/email.message.rst:291
msgid "This will add a header that looks like ::"
msgstr ""

#: ../../library/email.message.rst:293
msgid "Content-Disposition: attachment; filename=\"bud.gif\""
msgstr "Content-Disposition: attachment; filename=\"bud.gif\""

#: ../../library/email.message.rst:295
msgid "An example of the extended interface with non-ASCII characters::"
msgstr ""

#: ../../library/email.message.rst:297
msgid ""
"msg.add_header('Content-Disposition', 'attachment',\n"
"               filename=('iso-8859-1', '', 'Fußballer.ppt'))"
msgstr ""

#: ../../library/email.message.rst:303
msgid ""
"Replace a header.  Replace the first header found in the message that "
"matches *_name*, retaining header order and field name case of the original "
"header.  If no matching header is found, raise a :exc:`KeyError`."
msgstr ""

#: ../../library/email.message.rst:311
msgid ""
"Return the message's content type, coerced to lower case of the form :"
"mimetype:`maintype/subtype`.  If there is no :mailheader:`Content-Type` "
"header in the message return the value returned by :meth:"
"`get_default_type`.  If the :mailheader:`Content-Type` header is invalid, "
"return ``text/plain``."
msgstr ""

#: ../../library/email.message.rst:317
msgid ""
"(According to :rfc:`2045`, messages always have a default type, :meth:"
"`get_content_type` will always return a value.  :rfc:`2045` defines a "
"message's default type to be :mimetype:`text/plain` unless it appears inside "
"a :mimetype:`multipart/digest` container, in which case it would be :"
"mimetype:`message/rfc822`.  If the :mailheader:`Content-Type` header has an "
"invalid type specification, :rfc:`2045` mandates that the default type be :"
"mimetype:`text/plain`.)"
msgstr ""

#: ../../library/email.message.rst:328
msgid ""
"Return the message's main content type.  This is the :mimetype:`maintype` "
"part of the string returned by :meth:`get_content_type`."
msgstr ""

#: ../../library/email.message.rst:334
msgid ""
"Return the message's sub-content type.  This is the :mimetype:`subtype` part "
"of the string returned by :meth:`get_content_type`."
msgstr ""

#: ../../library/email.message.rst:340
msgid ""
"Return the default content type.  Most messages have a default content type "
"of :mimetype:`text/plain`, except for messages that are subparts of :"
"mimetype:`multipart/digest` containers.  Such subparts have a default "
"content type of :mimetype:`message/rfc822`."
msgstr ""

#: ../../library/email.message.rst:348
msgid ""
"Set the default content type.  *ctype* should either be :mimetype:`text/"
"plain` or :mimetype:`message/rfc822`, although this is not enforced.  The "
"default content type is not stored in the :mailheader:`Content-Type` header, "
"so it only affects the return value of the ``get_content_type`` methods when "
"no :mailheader:`Content-Type` header is present in the message."
msgstr ""

#: ../../library/email.message.rst:359
msgid ""
"Set a parameter in the :mailheader:`Content-Type` header.  If the parameter "
"already exists in the header, replace its value with *value*. When *header* "
"is ``Content-Type`` (the default) and the header does not yet exist in the "
"message, add it, set its value to :mimetype:`text/plain`, and append the new "
"parameter value.  Optional *header* specifies an alternative header to :"
"mailheader:`Content-Type`."
msgstr ""

#: ../../library/email.message.rst:366
msgid ""
"If the value contains non-ASCII characters, the charset and language may be "
"explicitly specified using the optional *charset* and *language* "
"parameters.  Optional *language* specifies the :rfc:`2231` language, "
"defaulting to the empty string.  Both *charset* and *language* should be "
"strings.  The default is to use the ``utf8`` *charset* and ``None`` for the "
"*language*."
msgstr ""

#: ../../library/email.message.rst:373
msgid ""
"If *replace* is ``False`` (the default) the header is moved to the end of "
"the list of headers.  If *replace* is ``True``, the header will be updated "
"in place."
msgstr ""

#: ../../library/email.message.rst:377 ../../library/email.message.rst:394
msgid ""
"Use of the *requote* parameter with :class:`EmailMessage` objects is "
"deprecated."
msgstr ""

#: ../../library/email.message.rst:380
msgid ""
"Note that existing parameter values of headers may be accessed through the :"
"attr:`~email.headerregistry.ParameterizedMIMEHeader.params` attribute of the "
"header value (for example, ``msg['Content-Type'].params['charset']``)."
msgstr ""

#: ../../library/email.message.rst:384
msgid "``replace`` keyword was added."
msgstr ""

#: ../../library/email.message.rst:389
msgid ""
"Remove the given parameter completely from the :mailheader:`Content-Type` "
"header.  The header will be re-written in place without the parameter or its "
"value.  Optional *header* specifies an alternative to :mailheader:`Content-"
"Type`."
msgstr ""

#: ../../library/email.message.rst:400
msgid ""
"Return the value of the ``filename`` parameter of the :mailheader:`Content-"
"Disposition` header of the message.  If the header does not have a "
"``filename`` parameter, this method falls back to looking for the ``name`` "
"parameter on the :mailheader:`Content-Type` header.  If neither is found, or "
"the header is missing, then *failobj* is returned. The returned string will "
"always be unquoted as per :func:`email.utils.unquote`."
msgstr ""

#: ../../library/email.message.rst:411
msgid ""
"Return the value of the ``boundary`` parameter of the :mailheader:`Content-"
"Type` header of the message, or *failobj* if either the header is missing, "
"or has no ``boundary`` parameter.  The returned string will always be "
"unquoted as per :func:`email.utils.unquote`."
msgstr ""

#: ../../library/email.message.rst:419
msgid ""
"Set the ``boundary`` parameter of the :mailheader:`Content-Type` header to "
"*boundary*.  :meth:`set_boundary` will always quote *boundary* if "
"necessary.  A :exc:`~email.errors.HeaderParseError` is raised if the message "
"object has no :mailheader:`Content-Type` header."
msgstr ""

#: ../../library/email.message.rst:424
msgid ""
"Note that using this method is subtly different from deleting the old :"
"mailheader:`Content-Type` header and adding a new one with the new boundary "
"via :meth:`add_header`, because :meth:`set_boundary` preserves the order of "
"the :mailheader:`Content-Type` header in the list of headers."
msgstr ""

#: ../../library/email.message.rst:433
msgid ""
"Return the ``charset`` parameter of the :mailheader:`Content-Type` header, "
"coerced to lower case.  If there is no :mailheader:`Content-Type` header, or "
"if that header has no ``charset`` parameter, *failobj* is returned."
msgstr ""

#: ../../library/email.message.rst:440
msgid ""
"Return a list containing the character set names in the message.  If the "
"message is a :mimetype:`multipart`, then the list will contain one element "
"for each subpart in the payload, otherwise, it will be a list of length 1."
msgstr ""

#: ../../library/email.message.rst:444
msgid ""
"Each item in the list will be a string which is the value of the ``charset`` "
"parameter in the :mailheader:`Content-Type` header for the represented "
"subpart.  If the subpart has no :mailheader:`Content-Type` header, no "
"``charset`` parameter, or is not of the :mimetype:`text` main MIME type, "
"then that item in the returned list will be *failobj*."
msgstr ""

#: ../../library/email.message.rst:453
msgid ""
"Return ``True`` if there is a :mailheader:`Content-Disposition` header and "
"its (case insensitive) value is ``attachment``, ``False`` otherwise."
msgstr ""

#: ../../library/email.message.rst:456
msgid ""
"is_attachment is now a method instead of a property, for consistency with :"
"meth:`~email.message.Message.is_multipart`."
msgstr ""

#: ../../library/email.message.rst:463
msgid ""
"Return the lowercased value (without parameters) of the message's :"
"mailheader:`Content-Disposition` header if it has one, or ``None``.  The "
"possible values for this method are *inline*, *attachment* or ``None`` if "
"the message follows :rfc:`2183`."
msgstr ""

#: ../../library/email.message.rst:471
msgid ""
"The following methods relate to interrogating and manipulating the content "
"(payload) of the message."
msgstr ""

#: ../../library/email.message.rst:477
msgid ""
"The :meth:`walk` method is an all-purpose generator which can be used to "
"iterate over all the parts and subparts of a message object tree, in depth-"
"first traversal order.  You will typically use :meth:`walk` as the iterator "
"in a ``for`` loop; each iteration returns the next subpart."
msgstr ""

#: ../../library/email.message.rst:482
msgid ""
"Here's an example that prints the MIME type of every part of a multipart "
"message structure:"
msgstr ""

#: ../../library/email.message.rst:491
msgid ""
">>> for part in msg.walk():\n"
"...     print(part.get_content_type())\n"
"multipart/report\n"
"text/plain\n"
"message/delivery-status\n"
"text/plain\n"
"text/plain\n"
"message/rfc822\n"
"text/plain"
msgstr ""
">>> for part in msg.walk():\n"
"...     print(part.get_content_type())\n"
"multipart/report\n"
"text/plain\n"
"message/delivery-status\n"
"text/plain\n"
"text/plain\n"
"message/rfc822\n"
"text/plain"

#: ../../library/email.message.rst:503
msgid ""
"``walk`` iterates over the subparts of any part where :meth:`is_multipart` "
"returns ``True``, even though ``msg.get_content_maintype() == 'multipart'`` "
"may return ``False``.  We can see this in our example by making use of the "
"``_structure`` debug helper function:"
msgstr ""

#: ../../library/email.message.rst:509
msgid ""
">>> from email.iterators import _structure\n"
">>> for part in msg.walk():\n"
"...     print(part.get_content_maintype() == 'multipart',\n"
"...           part.is_multipart())\n"
"True True\n"
"False False\n"
"False True\n"
"False False\n"
"False False\n"
"False True\n"
"False False\n"
">>> _structure(msg)\n"
"multipart/report\n"
"    text/plain\n"
"    message/delivery-status\n"
"        text/plain\n"
"        text/plain\n"
"    message/rfc822\n"
"        text/plain"
msgstr ""
">>> from email.iterators import _structure\n"
">>> for part in msg.walk():\n"
"...     print(part.get_content_maintype() == 'multipart',\n"
"...           part.is_multipart())\n"
"True True\n"
"False False\n"
"False True\n"
"False False\n"
"False False\n"
"False True\n"
"False False\n"
">>> _structure(msg)\n"
"multipart/report\n"
"    text/plain\n"
"    message/delivery-status\n"
"        text/plain\n"
"        text/plain\n"
"    message/rfc822\n"
"        text/plain"

#: ../../library/email.message.rst:531
msgid ""
"Here the ``message`` parts are not ``multiparts``, but they do contain "
"subparts. ``is_multipart()`` returns ``True`` and ``walk`` descends into the "
"subparts."
msgstr ""

#: ../../library/email.message.rst:538
msgid ""
"Return the MIME part that is the best candidate to be the \"body\" of the "
"message."
msgstr ""

#: ../../library/email.message.rst:541
msgid ""
"*preferencelist* must be a sequence of strings from the set ``related``, "
"``html``, and ``plain``, and indicates the order of preference for the "
"content type of the part returned."
msgstr ""

#: ../../library/email.message.rst:545
msgid ""
"Start looking for candidate matches with the object on which the "
"``get_body`` method is called."
msgstr ""

#: ../../library/email.message.rst:548
msgid ""
"If ``related`` is not included in *preferencelist*, consider the root part "
"(or subpart of the root part) of any related encountered as a candidate if "
"the (sub-)part matches a preference."
msgstr ""

#: ../../library/email.message.rst:552
msgid ""
"When encountering a ``multipart/related``, check the ``start`` parameter and "
"if a part with a matching :mailheader:`Content-ID` is found, consider only "
"it when looking for candidate matches.  Otherwise consider only the first "
"(default root) part of the ``multipart/related``."
msgstr ""

#: ../../library/email.message.rst:557
msgid ""
"If a part has a :mailheader:`Content-Disposition` header, only consider the "
"part a candidate match if the value of the header is ``inline``."
msgstr ""

#: ../../library/email.message.rst:560
msgid ""
"If none of the candidates matches any of the preferences in "
"*preferencelist*, return ``None``."
msgstr ""

#: ../../library/email.message.rst:563
msgid ""
"Notes: (1) For most applications the only *preferencelist* combinations that "
"really make sense are ``('plain',)``, ``('html', 'plain')``, and the default "
"``('related', 'html', 'plain')``.  (2) Because matching starts with the "
"object on which ``get_body`` is called, calling ``get_body`` on a "
"``multipart/related`` will return the object itself unless *preferencelist* "
"has a non-default value. (3) Messages (or message parts) that do not specify "
"a :mailheader:`Content-Type` or whose :mailheader:`Content-Type` header is "
"invalid will be treated as if they are of type ``text/plain``, which may "
"occasionally cause ``get_body`` to return unexpected results."
msgstr ""

#: ../../library/email.message.rst:577
msgid ""
"Return an iterator over all of the immediate sub-parts of the message that "
"are not candidate \"body\" parts.  That is, skip the first occurrence of "
"each of ``text/plain``, ``text/html``, ``multipart/related``, or ``multipart/"
"alternative`` (unless they are explicitly marked as attachments via :"
"mailheader:`Content-Disposition: attachment`), and return all remaining "
"parts.  When applied directly to a ``multipart/related``, return an iterator "
"over the all the related parts except the root part (ie: the part pointed to "
"by the ``start`` parameter, or the first part if there is no ``start`` "
"parameter or the ``start`` parameter doesn't match the :mailheader:`Content-"
"ID` of any of the parts).  When applied directly to a ``multipart/"
"alternative`` or a non-``multipart``, return an empty iterator."
msgstr ""

#: ../../library/email.message.rst:593
msgid ""
"Return an iterator over all of the immediate sub-parts of the message, which "
"will be empty for a non-``multipart``.  (See also :meth:`~email.message."
"EmailMessage.walk`.)"
msgstr ""

#: ../../library/email.message.rst:600
msgid ""
"Call the :meth:`~email.contentmanager.ContentManager.get_content` method of "
"the *content_manager*, passing self as the message object, and passing along "
"any other arguments or keywords as additional arguments.  If "
"*content_manager* is not specified, use the ``content_manager`` specified by "
"the current :mod:`~email.policy`."
msgstr ""

#: ../../library/email.message.rst:609
msgid ""
"Call the :meth:`~email.contentmanager.ContentManager.set_content` method of "
"the *content_manager*, passing self as the message object, and passing along "
"any other arguments or keywords as additional arguments.  If "
"*content_manager* is not specified, use the ``content_manager`` specified by "
"the current :mod:`~email.policy`."
msgstr ""

#: ../../library/email.message.rst:618
msgid ""
"Convert a non-``multipart`` message into a ``multipart/related`` message, "
"moving any existing :mailheader:`Content-` headers and payload into a (new) "
"first part of the ``multipart``.  If *boundary* is specified, use it as the "
"boundary string in the multipart, otherwise leave the boundary to be "
"automatically created when it is needed (for example, when the message is "
"serialized)."
msgstr ""

#: ../../library/email.message.rst:628
msgid ""
"Convert a non-``multipart`` or a ``multipart/related`` into a ``multipart/"
"alternative``, moving any existing :mailheader:`Content-` headers and "
"payload into a (new) first part of the ``multipart``.  If *boundary* is "
"specified, use it as the boundary string in the multipart, otherwise leave "
"the boundary to be automatically created when it is needed (for example, "
"when the message is serialized)."
msgstr ""

#: ../../library/email.message.rst:638
msgid ""
"Convert a non-``multipart``, a ``multipart/related``, or a ``multipart-"
"alternative`` into a ``multipart/mixed``, moving any existing :mailheader:"
"`Content-` headers and payload into a (new) first part of the "
"``multipart``.  If *boundary* is specified, use it as the boundary string in "
"the multipart, otherwise leave the boundary to be automatically created when "
"it is needed (for example, when the message is serialized)."
msgstr ""

#: ../../library/email.message.rst:648
msgid ""
"If the message is a ``multipart/related``, create a new message object, pass "
"all of the arguments to its :meth:`set_content` method, and :meth:`~email."
"message.Message.attach` it to the ``multipart``.  If the message is a non-"
"``multipart``, call :meth:`make_related` and then proceed as above.  If the "
"message is any other type of ``multipart``, raise a :exc:`TypeError`. If "
"*content_manager* is not specified, use the ``content_manager`` specified by "
"the current :mod:`~email.policy`. If the added part has no :mailheader:"
"`Content-Disposition` header, add one with the value ``inline``."
msgstr ""

#: ../../library/email.message.rst:661
msgid ""
"If the message is a ``multipart/alternative``, create a new message object, "
"pass all of the arguments to its :meth:`set_content` method, and :meth:"
"`~email.message.Message.attach` it to the ``multipart``.  If the message is "
"a non-``multipart`` or ``multipart/related``, call :meth:`make_alternative` "
"and then proceed as above.  If the message is any other type of "
"``multipart``, raise a :exc:`TypeError`. If *content_manager* is not "
"specified, use the ``content_manager`` specified by the current :mod:`~email."
"policy`."
msgstr ""

#: ../../library/email.message.rst:673
msgid ""
"If the message is a ``multipart/mixed``, create a new message object, pass "
"all of the arguments to its :meth:`set_content` method, and :meth:`~email."
"message.Message.attach` it to the ``multipart``.  If the message is a non-"
"``multipart``, ``multipart/related``, or ``multipart/alternative``, call :"
"meth:`make_mixed` and then proceed as above. If *content_manager* is not "
"specified, use the ``content_manager`` specified by the current :mod:`~email."
"policy`.  If the added part has no :mailheader:`Content-Disposition` header, "
"add one with the value ``attachment``.  This method can be used both for "
"explicit attachments (:mailheader:`Content-Disposition: attachment`) and "
"``inline`` attachments (:mailheader:`Content-Disposition: inline`), by "
"passing appropriate options to the ``content_manager``."
msgstr ""

#: ../../library/email.message.rst:689
msgid "Remove the payload and all of the headers."
msgstr ""

#: ../../library/email.message.rst:694
msgid ""
"Remove the payload and all of the :mailheader:`!Content-` headers, leaving "
"all other headers intact and in their original order."
msgstr ""

#: ../../library/email.message.rst:698
msgid ":class:`EmailMessage` objects have the following instance attributes:"
msgstr ""

#: ../../library/email.message.rst:703
msgid ""
"The format of a MIME document allows for some text between the blank line "
"following the headers, and the first multipart boundary string. Normally, "
"this text is never visible in a MIME-aware mail reader because it falls "
"outside the standard MIME armor.  However, when viewing the raw text of the "
"message, or when viewing the message in a non-MIME aware reader, this text "
"can become visible."
msgstr ""

#: ../../library/email.message.rst:710
msgid ""
"The *preamble* attribute contains this leading extra-armor text for MIME "
"documents.  When the :class:`~email.parser.Parser` discovers some text after "
"the headers but before the first boundary string, it assigns this text to "
"the message's *preamble* attribute.  When the :class:`~email.generator."
"Generator` is writing out the plain text representation of a MIME message, "
"and it finds the message has a *preamble* attribute, it will write this text "
"in the area between the headers and the first boundary.  See :mod:`email."
"parser` and :mod:`email.generator` for details."
msgstr ""

#: ../../library/email.message.rst:720
msgid ""
"Note that if the message object has no preamble, the *preamble* attribute "
"will be ``None``."
msgstr ""

#: ../../library/email.message.rst:726
msgid ""
"The *epilogue* attribute acts the same way as the *preamble* attribute, "
"except that it contains text that appears between the last boundary and the "
"end of the message.  As with the :attr:`~EmailMessage.preamble`, if there is "
"no epilog text this attribute will be ``None``."
msgstr ""

#: ../../library/email.message.rst:734
msgid ""
"The *defects* attribute contains a list of all the problems found when "
"parsing this message.  See :mod:`email.errors` for a detailed description of "
"the possible parsing defects."
msgstr ""

#: ../../library/email.message.rst:741
msgid ""
"This class represents a subpart of a MIME message.  It is identical to :"
"class:`EmailMessage`, except that no :mailheader:`MIME-Version` headers are "
"added when :meth:`~EmailMessage.set_content` is called, since sub-parts do "
"not need their own :mailheader:`MIME-Version` headers."
msgstr ""

#: ../../library/email.message.rst:748
msgid "Footnotes"
msgstr "註解"

#: ../../library/email.message.rst:749
msgid ""
"Originally added in 3.4 as a :term:`provisional module <provisional "
"package>`.  Docs for legacy message class moved to :ref:`compat32_message`."
msgstr ""