[ Avaa Bypassed ]




Upload:

Command:

hmhc3928@3.148.105.127: ~ $

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    
    <title>18.1.1. email.message: Representing an email message &mdash; Python 2.7.5 documentation</title>
    
    <link rel="stylesheet" href="../_static/default.css" type="text/css" />
    <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
    
    <script type="text/javascript">
      var DOCUMENTATION_OPTIONS = {
        URL_ROOT:    '../',
        VERSION:     '2.7.5',
        COLLAPSE_INDEX: false,
        FILE_SUFFIX: '.html',
        HAS_SOURCE:  true
      };
    </script>
    <script type="text/javascript" src="../_static/jquery.js"></script>
    <script type="text/javascript" src="../_static/underscore.js"></script>
    <script type="text/javascript" src="../_static/doctools.js"></script>
    <script type="text/javascript" src="../_static/sidebar.js"></script>
    <link rel="search" type="application/opensearchdescription+xml"
          title="Search within Python 2.7.5 documentation"
          href="../_static/opensearch.xml"/>
    <link rel="author" title="About these documents" href="../about.html" />
    <link rel="copyright" title="Copyright" href="../copyright.html" />
    <link rel="top" title="Python 2.7.5 documentation" href="../index.html" />
    <link rel="up" title="18.1. email — An email and MIME handling package" href="email.html" />
    <link rel="next" title="18.1.2. email.parser: Parsing email messages" href="email.parser.html" />
    <link rel="prev" title="18.1. email — An email and MIME handling package" href="email.html" />
    <link rel="shortcut icon" type="image/png" href="../_static/py.png" />
    <script type="text/javascript" src="../_static/copybutton.js"></script>
    
 

  </head>
  <body>
    <div class="related">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../genindex.html" title="General Index"
             accesskey="I">index</a></li>
        <li class="right" >
          <a href="../py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="email.parser.html" title="18.1.2. email.parser: Parsing email messages"
             accesskey="N">next</a> |</li>
        <li class="right" >
          <a href="email.html" title="18.1. email — An email and MIME handling package"
             accesskey="P">previous</a> |</li>
        <li><img src="../_static/py.png" alt=""
                 style="vertical-align: middle; margin-top: -1px"/></li>
        <li><a href="http://www.python.org/">Python</a> &raquo;</li>
        <li>
          <a href="../index.html">Python 2.7.5 documentation</a> &raquo;
        </li>

          <li><a href="index.html" >The Python Standard Library</a> &raquo;</li>
          <li><a href="netdata.html" >18. Internet Data Handling</a> &raquo;</li>
          <li><a href="email.html" accesskey="U">18.1. <tt class="docutils literal"><span class="pre">email</span></tt> &#8212; An email and MIME handling package</a> &raquo;</li> 
      </ul>
    </div>  

    <div class="document">
      <div class="documentwrapper">
        <div class="bodywrapper">
          <div class="body">
            
  <div class="section" id="module-email.message">
<span id="email-message-representing-an-email-message"></span><h1>18.1.1. <a class="reference internal" href="#module-email.message" title="email.message: The base class representing email messages."><tt class="xref py py-mod docutils literal"><span class="pre">email.message</span></tt></a>: Representing an email message<a class="headerlink" href="#module-email.message" title="Permalink to this headline">¶</a></h1>
<p>The central class in the <a class="reference internal" href="email.html#module-email" title="email: Package supporting the parsing, manipulating, and generating email messages, including MIME documents."><tt class="xref py py-mod docutils literal"><span class="pre">email</span></tt></a> package is the <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> class,
imported from the <a class="reference internal" href="#module-email.message" title="email.message: The base class representing email messages."><tt class="xref py py-mod docutils literal"><span class="pre">email.message</span></tt></a> module.  It is the base class for the
<a class="reference internal" href="email.html#module-email" title="email: Package supporting the parsing, manipulating, and generating email messages, including MIME documents."><tt class="xref py py-mod docutils literal"><span class="pre">email</span></tt></a> object model.  <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> provides the core functionality for
setting and querying header fields, and for accessing message bodies.</p>
<p>Conceptually, a <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> object consists of <em>headers</em> and <em>payloads</em>.
Headers are <span class="target" id="index-0"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2822.html"><strong>RFC 2822</strong></a> 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.</p>
<p>Headers are stored and returned in case-preserving form but are matched
case-insensitively.  There may also be a single envelope header, also known as
the <em>Unix-From</em> header or the <tt class="docutils literal"><span class="pre">From_</span></tt> header.  The payload is either a string
in the case of simple message objects or a list of <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects for
MIME container documents (e.g. <em class="mimetype">multipart/*</em> and
<em class="mimetype">message/rfc822</em>).</p>
<p><a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects provide a mapping style interface for accessing the
message headers, and an explicit interface for accessing both the headers and
the payload.  It provides convenience methods for generating a flat text
representation of the message object tree, for accessing commonly used header
parameters, and for recursively walking over the object tree.</p>
<p>Here are the methods of the <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> class:</p>
<dl class="class">
<dt id="email.message.Message">
<em class="property">class </em><tt class="descclassname">email.message.</tt><tt class="descname">Message</tt><a class="headerlink" href="#email.message.Message" title="Permalink to this definition">¶</a></dt>
<dd><p>The constructor takes no arguments.</p>
<dl class="method">
<dt id="email.message.Message.as_string">
<tt class="descname">as_string</tt><big>(</big><span class="optional">[</span><em>unixfrom</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.as_string" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the entire message flattened as a string.  When optional <em>unixfrom</em>
is <tt class="docutils literal"><span class="pre">True</span></tt>, the envelope header is included in the returned string.
<em>unixfrom</em> defaults to <tt class="docutils literal"><span class="pre">False</span></tt>.  Flattening the message may trigger
changes to the <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> if defaults need to be filled in to
complete the transformation to a string (for example, MIME boundaries may
be generated or modified).</p>
<p>Note that this method is provided as a convenience and may not always
format the message the way you want.  For example, by default it mangles
lines that begin with <tt class="docutils literal"><span class="pre">From</span></tt>.  For more flexibility, instantiate a
<a class="reference internal" href="email.generator.html#email.generator.Generator" title="email.generator.Generator"><tt class="xref py py-class docutils literal"><span class="pre">Generator</span></tt></a> instance and use its <tt class="xref py py-meth docutils literal"><span class="pre">flatten()</span></tt>
method directly.  For example:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">from</span> <span class="nn">cStringIO</span> <span class="kn">import</span> <span class="n">StringIO</span>
<span class="kn">from</span> <span class="nn">email.generator</span> <span class="kn">import</span> <span class="n">Generator</span>
<span class="n">fp</span> <span class="o">=</span> <span class="n">StringIO</span><span class="p">()</span>
<span class="n">g</span> <span class="o">=</span> <span class="n">Generator</span><span class="p">(</span><span class="n">fp</span><span class="p">,</span> <span class="n">mangle_from_</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">maxheaderlen</span><span class="o">=</span><span class="mi">60</span><span class="p">)</span>
<span class="n">g</span><span class="o">.</span><span class="n">flatten</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
<span class="n">text</span> <span class="o">=</span> <span class="n">fp</span><span class="o">.</span><span class="n">getvalue</span><span class="p">()</span>
</pre></div>
</div>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.__str__">
<tt class="descname">__str__</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.__str__" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <tt class="docutils literal"><span class="pre">as_string(unixfrom=True)</span></tt>.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.is_multipart">
<tt class="descname">is_multipart</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.is_multipart" title="Permalink to this definition">¶</a></dt>
<dd><p>Return <tt class="docutils literal"><span class="pre">True</span></tt> if the message&#8217;s payload is a list of sub-<a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects, otherwise return <tt class="docutils literal"><span class="pre">False</span></tt>.  When
<a class="reference internal" href="#email.message.Message.is_multipart" title="email.message.Message.is_multipart"><tt class="xref py py-meth docutils literal"><span class="pre">is_multipart()</span></tt></a> returns False, the payload should be a string object.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_unixfrom">
<tt class="descname">set_unixfrom</tt><big>(</big><em>unixfrom</em><big>)</big><a class="headerlink" href="#email.message.Message.set_unixfrom" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the message&#8217;s envelope header to <em>unixfrom</em>, which should be a string.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_unixfrom">
<tt class="descname">get_unixfrom</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_unixfrom" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the message&#8217;s envelope header.  Defaults to <tt class="docutils literal"><span class="pre">None</span></tt> if the
envelope header was never set.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.attach">
<tt class="descname">attach</tt><big>(</big><em>payload</em><big>)</big><a class="headerlink" href="#email.message.Message.attach" title="Permalink to this definition">¶</a></dt>
<dd><p>Add the given <em>payload</em> to the current payload, which must be <tt class="docutils literal"><span class="pre">None</span></tt> or
a list of <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects before the call. After the call, the
payload will always be a list of <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects.  If you want to
set the payload to a scalar object (e.g. a string), use
<a class="reference internal" href="#email.message.Message.set_payload" title="email.message.Message.set_payload"><tt class="xref py py-meth docutils literal"><span class="pre">set_payload()</span></tt></a> instead.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_payload">
<tt class="descname">get_payload</tt><big>(</big><span class="optional">[</span><em>i</em><span class="optional">[</span>, <em>decode</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_payload" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the current payload, which will be a list of
<a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects when <a class="reference internal" href="#email.message.Message.is_multipart" title="email.message.Message.is_multipart"><tt class="xref py py-meth docutils literal"><span class="pre">is_multipart()</span></tt></a> is <tt class="docutils literal"><span class="pre">True</span></tt>, or a
string when <a class="reference internal" href="#email.message.Message.is_multipart" title="email.message.Message.is_multipart"><tt class="xref py py-meth docutils literal"><span class="pre">is_multipart()</span></tt></a> is <tt class="docutils literal"><span class="pre">False</span></tt>.  If the payload is a list
and you mutate the list object, you modify the message&#8217;s payload in place.</p>
<p>With optional argument <em>i</em>, <a class="reference internal" href="#email.message.Message.get_payload" title="email.message.Message.get_payload"><tt class="xref py py-meth docutils literal"><span class="pre">get_payload()</span></tt></a> will return the <em>i</em>-th
element of the payload, counting from zero, if <a class="reference internal" href="#email.message.Message.is_multipart" title="email.message.Message.is_multipart"><tt class="xref py py-meth docutils literal"><span class="pre">is_multipart()</span></tt></a> is
<tt class="docutils literal"><span class="pre">True</span></tt>.  An <a class="reference internal" href="exceptions.html#exceptions.IndexError" title="exceptions.IndexError"><tt class="xref py py-exc docutils literal"><span class="pre">IndexError</span></tt></a> will be raised if <em>i</em> is less than 0 or
greater than or equal to the number of items in the payload.  If the
payload is a string (i.e.  <a class="reference internal" href="#email.message.Message.is_multipart" title="email.message.Message.is_multipart"><tt class="xref py py-meth docutils literal"><span class="pre">is_multipart()</span></tt></a> is <tt class="docutils literal"><span class="pre">False</span></tt>) and <em>i</em> is
given, a <a class="reference internal" href="exceptions.html#exceptions.TypeError" title="exceptions.TypeError"><tt class="xref py py-exc docutils literal"><span class="pre">TypeError</span></tt></a> is raised.</p>
<p>Optional <em>decode</em> is a flag indicating whether the payload should be
decoded or not, according to the <em class="mailheader">Content-Transfer-Encoding</em>
header. When <tt class="docutils literal"><span class="pre">True</span></tt> and the message is not a multipart, the payload will
be decoded if this header&#8217;s value is <tt class="docutils literal"><span class="pre">quoted-printable</span></tt> or <tt class="docutils literal"><span class="pre">base64</span></tt>.
If some other encoding is used, or <em class="mailheader">Content-Transfer-Encoding</em>
header is missing, or if the payload has bogus base64 data, the payload is
returned as-is (undecoded).  If the message is a multipart and the
<em>decode</em> flag is <tt class="docutils literal"><span class="pre">True</span></tt>, then <tt class="docutils literal"><span class="pre">None</span></tt> is returned.  The default for
<em>decode</em> is <tt class="docutils literal"><span class="pre">False</span></tt>.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_payload">
<tt class="descname">set_payload</tt><big>(</big><em>payload</em><span class="optional">[</span>, <em>charset</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.set_payload" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the entire message object&#8217;s payload to <em>payload</em>.  It is the client&#8217;s
responsibility to ensure the payload invariants.  Optional <em>charset</em> sets
the message&#8217;s default character set; see <a class="reference internal" href="#email.message.Message.set_charset" title="email.message.Message.set_charset"><tt class="xref py py-meth docutils literal"><span class="pre">set_charset()</span></tt></a> for details.</p>
<p class="versionchanged">
<span class="versionmodified">Changed in version 2.2.2: </span><em>charset</em> argument added.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_charset">
<tt class="descname">set_charset</tt><big>(</big><em>charset</em><big>)</big><a class="headerlink" href="#email.message.Message.set_charset" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the character set of the payload to <em>charset</em>, which can either be a
<a class="reference internal" href="email.charset.html#email.charset.Charset" title="email.charset.Charset"><tt class="xref py py-class docutils literal"><span class="pre">Charset</span></tt></a> instance (see <a class="reference internal" href="email.charset.html#module-email.charset" title="email.charset: Character Sets"><tt class="xref py py-mod docutils literal"><span class="pre">email.charset</span></tt></a>), a
string naming a character set, or <tt class="docutils literal"><span class="pre">None</span></tt>.  If it is a string, it will
be converted to a <a class="reference internal" href="email.charset.html#email.charset.Charset" title="email.charset.Charset"><tt class="xref py py-class docutils literal"><span class="pre">Charset</span></tt></a> instance.  If <em>charset</em>
is <tt class="docutils literal"><span class="pre">None</span></tt>, the <tt class="docutils literal"><span class="pre">charset</span></tt> parameter will be removed from the
<em class="mailheader">Content-Type</em> header (the message will not be otherwise
modified).  Anything else will generate a <a class="reference internal" href="exceptions.html#exceptions.TypeError" title="exceptions.TypeError"><tt class="xref py py-exc docutils literal"><span class="pre">TypeError</span></tt></a>.</p>
<p>If there is no existing <em class="mailheader">MIME-Version</em> header one will be
added.  If there is no existing <em class="mailheader">Content-Type</em> header, one
will be added with a value of <em class="mimetype">text/plain</em>.  Whether the
<em class="mailheader">Content-Type</em> header already exists or not, its <tt class="docutils literal"><span class="pre">charset</span></tt>
parameter will be set to <em>charset.output_charset</em>.   If
<em>charset.input_charset</em> and <em>charset.output_charset</em> differ, the payload
will be re-encoded to the <em>output_charset</em>.  If there is no existing
<em class="mailheader">Content-Transfer-Encoding</em> header, then the payload will be
transfer-encoded, if needed, using the specified
<a class="reference internal" href="email.charset.html#email.charset.Charset" title="email.charset.Charset"><tt class="xref py py-class docutils literal"><span class="pre">Charset</span></tt></a>, and a header with the appropriate value
will be added.  If a <em class="mailheader">Content-Transfer-Encoding</em> header
already exists, the payload is assumed to already be correctly encoded
using that <em class="mailheader">Content-Transfer-Encoding</em> and is not modified.</p>
<p>The message will be assumed to be of type <em class="mimetype">text/*</em>, with the
payload either in unicode or encoded with <em>charset.input_charset</em>.
It will be encoded or converted to <em>charset.output_charset</em>
and transfer encoded properly, if needed, when generating the plain text
representation of the message.  MIME headers (<em class="mailheader">MIME-Version</em>,
<em class="mailheader">Content-Type</em>, <em class="mailheader">Content-Transfer-Encoding</em>) will
be added as needed.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_charset">
<tt class="descname">get_charset</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_charset" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the <a class="reference internal" href="email.charset.html#email.charset.Charset" title="email.charset.Charset"><tt class="xref py py-class docutils literal"><span class="pre">Charset</span></tt></a> instance associated with the
message&#8217;s payload.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<p>The following methods implement a mapping-like interface for accessing the
message&#8217;s <span class="target" id="index-1"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2822.html"><strong>RFC 2822</strong></a> 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 <a class="reference internal" href="#email.message.Message.keys" title="email.message.Message.keys"><tt class="xref py py-meth docutils literal"><span class="pre">keys()</span></tt></a>, but in a <a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> object,
headers are always returned in the order they appeared in the original
message, or were added to the message later.  Any header deleted and then
re-added are always appended to the end of the header list.</p>
<p>These semantic differences are intentional and are biased toward maximal
convenience.</p>
<p>Note that in all cases, any envelope header present in the message is not
included in the mapping interface.</p>
<dl class="method">
<dt id="email.message.Message.__len__">
<tt class="descname">__len__</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.__len__" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the total number of headers, including duplicates.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.__contains__">
<tt class="descname">__contains__</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#email.message.Message.__contains__" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if the message object has a field named <em>name</em>. Matching is
done case-insensitively and <em>name</em> should not include the trailing colon.
Used for the <tt class="docutils literal"><span class="pre">in</span></tt> operator, e.g.:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="k">if</span> <span class="s">&#39;message-id&#39;</span> <span class="ow">in</span> <span class="n">myMessage</span><span class="p">:</span>
    <span class="k">print</span> <span class="s">&#39;Message-ID:&#39;</span><span class="p">,</span> <span class="n">myMessage</span><span class="p">[</span><span class="s">&#39;message-id&#39;</span><span class="p">]</span>
</pre></div>
</div>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.__getitem__">
<tt class="descname">__getitem__</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#email.message.Message.__getitem__" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the value of the named header field.  <em>name</em> should not include the
colon field separator.  If the header is missing, <tt class="docutils literal"><span class="pre">None</span></tt> is returned; a
<a class="reference internal" href="exceptions.html#exceptions.KeyError" title="exceptions.KeyError"><tt class="xref py py-exc docutils literal"><span class="pre">KeyError</span></tt></a> is never raised.</p>
<p>Note that if the named field appears more than once in the message&#8217;s
headers, exactly which of those field values will be returned is
undefined.  Use the <a class="reference internal" href="#email.message.Message.get_all" title="email.message.Message.get_all"><tt class="xref py py-meth docutils literal"><span class="pre">get_all()</span></tt></a> method to get the values of all the
extant named headers.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.__setitem__">
<tt class="descname">__setitem__</tt><big>(</big><em>name</em>, <em>val</em><big>)</big><a class="headerlink" href="#email.message.Message.__setitem__" title="Permalink to this definition">¶</a></dt>
<dd><p>Add a header to the message with field name <em>name</em> and value <em>val</em>.  The
field is appended to the end of the message&#8217;s existing fields.</p>
<p>Note that this does <em>not</em> 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 <em>name</em>, delete the field first, e.g.:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="k">del</span> <span class="n">msg</span><span class="p">[</span><span class="s">&#39;subject&#39;</span><span class="p">]</span>
<span class="n">msg</span><span class="p">[</span><span class="s">&#39;subject&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s">&#39;Python roolz!&#39;</span>
</pre></div>
</div>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.__delitem__">
<tt class="descname">__delitem__</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#email.message.Message.__delitem__" title="Permalink to this definition">¶</a></dt>
<dd><p>Delete all occurrences of the field with name <em>name</em> from the message&#8217;s
headers.  No exception is raised if the named field isn&#8217;t present in the headers.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.has_key">
<tt class="descname">has_key</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#email.message.Message.has_key" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if the message contains a header field named <em>name</em>, otherwise
return false.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.keys">
<tt class="descname">keys</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.keys" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a list of all the message&#8217;s header field names.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.values">
<tt class="descname">values</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.values" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a list of all the message&#8217;s field values.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.items">
<tt class="descname">items</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.items" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a list of 2-tuples containing all the message&#8217;s field headers and
values.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get">
<tt class="descname">get</tt><big>(</big><em>name</em><span class="optional">[</span>, <em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the value of the named header field.  This is identical to
<a class="reference internal" href="#email.message.Message.__getitem__" title="email.message.Message.__getitem__"><tt class="xref py py-meth docutils literal"><span class="pre">__getitem__()</span></tt></a> except that optional <em>failobj</em> is returned if the
named header is missing (defaults to <tt class="docutils literal"><span class="pre">None</span></tt>).</p>
</dd></dl>

<p>Here are some additional useful methods:</p>
<dl class="method">
<dt id="email.message.Message.get_all">
<tt class="descname">get_all</tt><big>(</big><em>name</em><span class="optional">[</span>, <em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_all" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a list of all the values for the field named <em>name</em>. If there are
no such named headers in the message, <em>failobj</em> is returned (defaults to
<tt class="docutils literal"><span class="pre">None</span></tt>).</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.add_header">
<tt class="descname">add_header</tt><big>(</big><em>_name</em>, <em>_value</em>, <em>**_params</em><big>)</big><a class="headerlink" href="#email.message.Message.add_header" title="Permalink to this definition">¶</a></dt>
<dd><p>Extended header setting.  This method is similar to <a class="reference internal" href="#email.message.Message.__setitem__" title="email.message.Message.__setitem__"><tt class="xref py py-meth docutils literal"><span class="pre">__setitem__()</span></tt></a>
except that additional header parameters can be provided as keyword
arguments.  <em>_name</em> is the header field to add and <em>_value</em> is the
<em>primary</em> value for the header.</p>
<p>For each item in the keyword argument dictionary <em>_params</em>, 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 <tt class="docutils literal"><span class="pre">key=&quot;value&quot;</span></tt> unless the value is <tt class="docutils literal"><span class="pre">None</span></tt>, in which case
only the key will be added.  If the value contains non-ASCII characters,
it must be specified as a three tuple in the format
<tt class="docutils literal"><span class="pre">(CHARSET,</span> <span class="pre">LANGUAGE,</span> <span class="pre">VALUE)</span></tt>, where <tt class="docutils literal"><span class="pre">CHARSET</span></tt> is a string naming the
charset to be used to encode the value, <tt class="docutils literal"><span class="pre">LANGUAGE</span></tt> can usually be set
to <tt class="docutils literal"><span class="pre">None</span></tt> or the empty string (see <span class="target" id="index-2"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2231.html"><strong>RFC 2231</strong></a> for other possibilities),
and <tt class="docutils literal"><span class="pre">VALUE</span></tt> is the string value containing non-ASCII code points.</p>
<p>Here&#8217;s an example:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">msg</span><span class="o">.</span><span class="n">add_header</span><span class="p">(</span><span class="s">&#39;Content-Disposition&#39;</span><span class="p">,</span> <span class="s">&#39;attachment&#39;</span><span class="p">,</span> <span class="n">filename</span><span class="o">=</span><span class="s">&#39;bud.gif&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>This will add a header that looks like</p>
<div class="highlight-python"><pre>Content-Disposition: attachment; filename="bud.gif"</pre>
</div>
<p>An example with non-ASCII characters:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">msg</span><span class="o">.</span><span class="n">add_header</span><span class="p">(</span><span class="s">&#39;Content-Disposition&#39;</span><span class="p">,</span> <span class="s">&#39;attachment&#39;</span><span class="p">,</span>
               <span class="n">filename</span><span class="o">=</span><span class="p">(</span><span class="s">&#39;iso-8859-1&#39;</span><span class="p">,</span> <span class="s">&#39;&#39;</span><span class="p">,</span> <span class="s">&#39;Fußballer.ppt&#39;</span><span class="p">))</span>
</pre></div>
</div>
<p>Which produces</p>
<div class="highlight-python"><pre>Content-Disposition: attachment; filename*="iso-8859-1''Fu%DFballer.ppt"</pre>
</div>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.replace_header">
<tt class="descname">replace_header</tt><big>(</big><em>_name</em>, <em>_value</em><big>)</big><a class="headerlink" href="#email.message.Message.replace_header" title="Permalink to this definition">¶</a></dt>
<dd><p>Replace a header.  Replace the first header found in the message that
matches <em>_name</em>, retaining header order and field name case.  If no
matching header was found, a <a class="reference internal" href="exceptions.html#exceptions.KeyError" title="exceptions.KeyError"><tt class="xref py py-exc docutils literal"><span class="pre">KeyError</span></tt></a> is raised.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_content_type">
<tt class="descname">get_content_type</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_content_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the message&#8217;s content type.  The returned string is coerced to
lower case of the form <em class="mimetype">maintype/subtype</em>.  If there was no
<em class="mailheader">Content-Type</em> header in the message the default type as given
by <a class="reference internal" href="#email.message.Message.get_default_type" title="email.message.Message.get_default_type"><tt class="xref py py-meth docutils literal"><span class="pre">get_default_type()</span></tt></a> will be returned.  Since according to
<span class="target" id="index-3"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2045.html"><strong>RFC 2045</strong></a>, messages always have a default type, <a class="reference internal" href="#email.message.Message.get_content_type" title="email.message.Message.get_content_type"><tt class="xref py py-meth docutils literal"><span class="pre">get_content_type()</span></tt></a>
will always return a value.</p>
<p><span class="target" id="index-4"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2045.html"><strong>RFC 2045</strong></a> defines a message&#8217;s default type to be <em class="mimetype">text/plain</em>
unless it appears inside a <em class="mimetype">multipart/digest</em> container, in
which case it would be <em class="mimetype">message/rfc822</em>.  If the
<em class="mailheader">Content-Type</em> header has an invalid type specification,
<span class="target" id="index-5"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2045.html"><strong>RFC 2045</strong></a> mandates that the default type be <em class="mimetype">text/plain</em>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_content_maintype">
<tt class="descname">get_content_maintype</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_content_maintype" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the message&#8217;s main content type.  This is the <em class="mimetype">maintype</em>
part of the string returned by <a class="reference internal" href="#email.message.Message.get_content_type" title="email.message.Message.get_content_type"><tt class="xref py py-meth docutils literal"><span class="pre">get_content_type()</span></tt></a>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_content_subtype">
<tt class="descname">get_content_subtype</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_content_subtype" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the message&#8217;s sub-content type.  This is the <em class="mimetype">subtype</em>
part of the string returned by <a class="reference internal" href="#email.message.Message.get_content_type" title="email.message.Message.get_content_type"><tt class="xref py py-meth docutils literal"><span class="pre">get_content_type()</span></tt></a>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_default_type">
<tt class="descname">get_default_type</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.get_default_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the default content type.  Most messages have a default content
type of <em class="mimetype">text/plain</em>, except for messages that are subparts of
<em class="mimetype">multipart/digest</em> containers.  Such subparts have a default
content type of <em class="mimetype">message/rfc822</em>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_default_type">
<tt class="descname">set_default_type</tt><big>(</big><em>ctype</em><big>)</big><a class="headerlink" href="#email.message.Message.set_default_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the default content type.  <em>ctype</em> should either be
<em class="mimetype">text/plain</em> or <em class="mimetype">message/rfc822</em>, although this is not
enforced.  The default content type is not stored in the
<em class="mailheader">Content-Type</em> header.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_params">
<tt class="descname">get_params</tt><big>(</big><span class="optional">[</span><em>failobj</em><span class="optional">[</span>, <em>header</em><span class="optional">[</span>, <em>unquote</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_params" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the message&#8217;s <em class="mailheader">Content-Type</em> parameters, as a list.
The elements of the returned list are 2-tuples of key/value pairs, as
split on the <tt class="docutils literal"><span class="pre">'='</span></tt> sign.  The left hand side of the <tt class="docutils literal"><span class="pre">'='</span></tt> is the key,
while the right hand side is the value.  If there is no <tt class="docutils literal"><span class="pre">'='</span></tt> sign in
the parameter the value is the empty string, otherwise the value is as
described in <a class="reference internal" href="#email.message.Message.get_param" title="email.message.Message.get_param"><tt class="xref py py-meth docutils literal"><span class="pre">get_param()</span></tt></a> and is unquoted if optional <em>unquote</em> is
<tt class="docutils literal"><span class="pre">True</span></tt> (the default).</p>
<p>Optional <em>failobj</em> is the object to return if there is no
<em class="mailheader">Content-Type</em> header.  Optional <em>header</em> is the header to
search instead of <em class="mailheader">Content-Type</em>.</p>
<p class="versionchanged">
<span class="versionmodified">Changed in version 2.2.2: </span><em>unquote</em> argument added.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_param">
<tt class="descname">get_param</tt><big>(</big><em>param</em><span class="optional">[</span>, <em>failobj</em><span class="optional">[</span>, <em>header</em><span class="optional">[</span>, <em>unquote</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_param" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the value of the <em class="mailheader">Content-Type</em> header&#8217;s parameter
<em>param</em> as a string.  If the message has no <em class="mailheader">Content-Type</em>
header or if there is no such parameter, then <em>failobj</em> is returned
(defaults to <tt class="docutils literal"><span class="pre">None</span></tt>).</p>
<p>Optional <em>header</em> if given, specifies the message header to use instead of
<em class="mailheader">Content-Type</em>.</p>
<p>Parameter keys are always compared case insensitively.  The return value
can either be a string, or a 3-tuple if the parameter was <span class="target" id="index-6"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2231.html"><strong>RFC 2231</strong></a>
encoded.  When it&#8217;s a 3-tuple, the elements of the value are of the form
<tt class="docutils literal"><span class="pre">(CHARSET,</span> <span class="pre">LANGUAGE,</span> <span class="pre">VALUE)</span></tt>.  Note that both <tt class="docutils literal"><span class="pre">CHARSET</span></tt> and
<tt class="docutils literal"><span class="pre">LANGUAGE</span></tt> can be <tt class="docutils literal"><span class="pre">None</span></tt>, in which case you should consider <tt class="docutils literal"><span class="pre">VALUE</span></tt>
to be encoded in the <tt class="docutils literal"><span class="pre">us-ascii</span></tt> charset.  You can usually ignore
<tt class="docutils literal"><span class="pre">LANGUAGE</span></tt>.</p>
<p>If your application doesn&#8217;t care whether the parameter was encoded as in
<span class="target" id="index-7"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2231.html"><strong>RFC 2231</strong></a>, you can collapse the parameter value by calling
<a class="reference internal" href="email.util.html#email.utils.collapse_rfc2231_value" title="email.utils.collapse_rfc2231_value"><tt class="xref py py-func docutils literal"><span class="pre">email.utils.collapse_rfc2231_value()</span></tt></a>, passing in the return value
from <a class="reference internal" href="#email.message.Message.get_param" title="email.message.Message.get_param"><tt class="xref py py-meth docutils literal"><span class="pre">get_param()</span></tt></a>.  This will return a suitably decoded Unicode
string when the value is a tuple, or the original string unquoted if it
isn&#8217;t.  For example:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">rawparam</span> <span class="o">=</span> <span class="n">msg</span><span class="o">.</span><span class="n">get_param</span><span class="p">(</span><span class="s">&#39;foo&#39;</span><span class="p">)</span>
<span class="n">param</span> <span class="o">=</span> <span class="n">email</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">collapse_rfc2231_value</span><span class="p">(</span><span class="n">rawparam</span><span class="p">)</span>
</pre></div>
</div>
<p>In any case, the parameter value (either the returned string, or the
<tt class="docutils literal"><span class="pre">VALUE</span></tt> item in the 3-tuple) is always unquoted, unless <em>unquote</em> is set
to <tt class="docutils literal"><span class="pre">False</span></tt>.</p>
<p class="versionchanged">
<span class="versionmodified">Changed in version 2.2.2: </span><em>unquote</em> argument added, and 3-tuple return value possible.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_param">
<tt class="descname">set_param</tt><big>(</big><em>param</em>, <em>value</em><span class="optional">[</span>, <em>header</em><span class="optional">[</span>, <em>requote</em><span class="optional">[</span>, <em>charset</em><span class="optional">[</span>, <em>language</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.set_param" title="Permalink to this definition">¶</a></dt>
<dd><p>Set a parameter in the <em class="mailheader">Content-Type</em> header.  If the
parameter already exists in the header, its value will be replaced with
<em>value</em>.  If the <em class="mailheader">Content-Type</em> header as not yet been defined
for this message, it will be set to <em class="mimetype">text/plain</em> and the new
parameter value will be appended as per <span class="target" id="index-8"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2045.html"><strong>RFC 2045</strong></a>.</p>
<p>Optional <em>header</em> specifies an alternative header to
<em class="mailheader">Content-Type</em>, and all parameters will be quoted as necessary
unless optional <em>requote</em> is <tt class="docutils literal"><span class="pre">False</span></tt> (the default is <tt class="docutils literal"><span class="pre">True</span></tt>).</p>
<p>If optional <em>charset</em> is specified, the parameter will be encoded
according to <span class="target" id="index-9"></span><a class="rfc reference external" href="http://tools.ietf.org/html/rfc2231.html"><strong>RFC 2231</strong></a>. Optional <em>language</em> specifies the RFC 2231
language, defaulting to the empty string.  Both <em>charset</em> and <em>language</em>
should be strings.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.del_param">
<tt class="descname">del_param</tt><big>(</big><em>param</em><span class="optional">[</span>, <em>header</em><span class="optional">[</span>, <em>requote</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.del_param" title="Permalink to this definition">¶</a></dt>
<dd><p>Remove the given parameter completely from the <em class="mailheader">Content-Type</em>
header.  The header will be re-written in place without the parameter or
its value.  All values will be quoted as necessary unless <em>requote</em> is
<tt class="docutils literal"><span class="pre">False</span></tt> (the default is <tt class="docutils literal"><span class="pre">True</span></tt>).  Optional <em>header</em> specifies an
alternative to <em class="mailheader">Content-Type</em>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_type">
<tt class="descname">set_type</tt><big>(</big><em>type[, header][, requote]</em><big>)</big><a class="headerlink" href="#email.message.Message.set_type" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the main type and subtype for the <em class="mailheader">Content-Type</em>
header. <em>type</em> must be a string in the form <em class="mimetype">maintype/subtype</em>,
otherwise a <a class="reference internal" href="exceptions.html#exceptions.ValueError" title="exceptions.ValueError"><tt class="xref py py-exc docutils literal"><span class="pre">ValueError</span></tt></a> is raised.</p>
<p>This method replaces the <em class="mailheader">Content-Type</em> header, keeping all
the parameters in place.  If <em>requote</em> is <tt class="docutils literal"><span class="pre">False</span></tt>, this leaves the
existing header&#8217;s quoting as is, otherwise the parameters will be quoted
(the default).</p>
<p>An alternative header can be specified in the <em>header</em> argument. When the
<em class="mailheader">Content-Type</em> header is set a <em class="mailheader">MIME-Version</em>
header is also added.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_filename">
<tt class="descname">get_filename</tt><big>(</big><span class="optional">[</span><em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_filename" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the value of the <tt class="docutils literal"><span class="pre">filename</span></tt> parameter of the
<em class="mailheader">Content-Disposition</em> header of the message.  If the header
does not have a <tt class="docutils literal"><span class="pre">filename</span></tt> parameter, this method falls back to looking
for the <tt class="docutils literal"><span class="pre">name</span></tt> parameter on the <em class="mailheader">Content-Type</em> header.  If
neither is found, or the header is missing, then <em>failobj</em> is returned.
The returned string will always be unquoted as per
<a class="reference internal" href="email.util.html#email.utils.unquote" title="email.utils.unquote"><tt class="xref py py-func docutils literal"><span class="pre">email.utils.unquote()</span></tt></a>.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_boundary">
<tt class="descname">get_boundary</tt><big>(</big><span class="optional">[</span><em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_boundary" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the value of the <tt class="docutils literal"><span class="pre">boundary</span></tt> parameter of the
<em class="mailheader">Content-Type</em> header of the message, or <em>failobj</em> if either
the header is missing, or has no <tt class="docutils literal"><span class="pre">boundary</span></tt> parameter.  The returned
string will always be unquoted as per <a class="reference internal" href="email.util.html#email.utils.unquote" title="email.utils.unquote"><tt class="xref py py-func docutils literal"><span class="pre">email.utils.unquote()</span></tt></a>.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.set_boundary">
<tt class="descname">set_boundary</tt><big>(</big><em>boundary</em><big>)</big><a class="headerlink" href="#email.message.Message.set_boundary" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the <tt class="docutils literal"><span class="pre">boundary</span></tt> parameter of the <em class="mailheader">Content-Type</em> header to
<em>boundary</em>.  <a class="reference internal" href="#email.message.Message.set_boundary" title="email.message.Message.set_boundary"><tt class="xref py py-meth docutils literal"><span class="pre">set_boundary()</span></tt></a> will always quote <em>boundary</em> if
necessary.  A <tt class="xref py py-exc docutils literal"><span class="pre">HeaderParseError</span></tt> is raised if the message object has
no <em class="mailheader">Content-Type</em> header.</p>
<p>Note that using this method is subtly different than deleting the old
<em class="mailheader">Content-Type</em> header and adding a new one with the new
boundary via <a class="reference internal" href="#email.message.Message.add_header" title="email.message.Message.add_header"><tt class="xref py py-meth docutils literal"><span class="pre">add_header()</span></tt></a>, because <a class="reference internal" href="#email.message.Message.set_boundary" title="email.message.Message.set_boundary"><tt class="xref py py-meth docutils literal"><span class="pre">set_boundary()</span></tt></a> preserves
the order of the <em class="mailheader">Content-Type</em> header in the list of
headers. However, it does <em>not</em> preserve any continuation lines which may
have been present in the original <em class="mailheader">Content-Type</em> header.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_content_charset">
<tt class="descname">get_content_charset</tt><big>(</big><span class="optional">[</span><em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_content_charset" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the <tt class="docutils literal"><span class="pre">charset</span></tt> parameter of the <em class="mailheader">Content-Type</em> header,
coerced to lower case.  If there is no <em class="mailheader">Content-Type</em> header, or if
that header has no <tt class="docutils literal"><span class="pre">charset</span></tt> parameter, <em>failobj</em> is returned.</p>
<p>Note that this method differs from <a class="reference internal" href="#email.message.Message.get_charset" title="email.message.Message.get_charset"><tt class="xref py py-meth docutils literal"><span class="pre">get_charset()</span></tt></a> which returns the
<a class="reference internal" href="email.charset.html#email.charset.Charset" title="email.charset.Charset"><tt class="xref py py-class docutils literal"><span class="pre">Charset</span></tt></a> instance for the default encoding of the message body.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.2.2.</span></p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.get_charsets">
<tt class="descname">get_charsets</tt><big>(</big><span class="optional">[</span><em>failobj</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#email.message.Message.get_charsets" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a list containing the character set names in the message.  If the
message is a <em class="mimetype">multipart</em>, then the list will contain one element
for each subpart in the payload, otherwise, it will be a list of length 1.</p>
<p>Each item in the list will be a string which is the value of the
<tt class="docutils literal"><span class="pre">charset</span></tt> parameter in the <em class="mailheader">Content-Type</em> header for the
represented subpart.  However, if the subpart has no
<em class="mailheader">Content-Type</em> header, no <tt class="docutils literal"><span class="pre">charset</span></tt> parameter, or is not of
the <em class="mimetype">text</em> main MIME type, then that item in the returned list
will be <em>failobj</em>.</p>
</dd></dl>

<dl class="method">
<dt id="email.message.Message.walk">
<tt class="descname">walk</tt><big>(</big><big>)</big><a class="headerlink" href="#email.message.Message.walk" title="Permalink to this definition">¶</a></dt>
<dd><p>The <a class="reference internal" href="#email.message.Message.walk" title="email.message.Message.walk"><tt class="xref py py-meth docutils literal"><span class="pre">walk()</span></tt></a> 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 <a class="reference internal" href="#email.message.Message.walk" title="email.message.Message.walk"><tt class="xref py py-meth docutils literal"><span class="pre">walk()</span></tt></a> as the
iterator in a <tt class="docutils literal"><span class="pre">for</span></tt> loop; each iteration returns the next subpart.</p>
<p>Here&#8217;s an example that prints the MIME type of every part of a multipart
message structure:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">&gt;&gt;&gt; </span><span class="k">for</span> <span class="n">part</span> <span class="ow">in</span> <span class="n">msg</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span>
<span class="gp">... </span>    <span class="k">print</span> <span class="n">part</span><span class="o">.</span><span class="n">get_content_type</span><span class="p">()</span>
<span class="go">multipart/report</span>
<span class="go">text/plain</span>
<span class="go">message/delivery-status</span>
<span class="go">text/plain</span>
<span class="go">text/plain</span>
<span class="go">message/rfc822</span>
</pre></div>
</div>
</dd></dl>

<p class="versionchanged">
<span class="versionmodified">Changed in version 2.5: </span>The previously deprecated methods <tt class="xref py py-meth docutils literal"><span class="pre">get_type()</span></tt>, <tt class="xref py py-meth docutils literal"><span class="pre">get_main_type()</span></tt>, and
<tt class="xref py py-meth docutils literal"><span class="pre">get_subtype()</span></tt> were removed.</p>
<p><a class="reference internal" href="#email.message.Message" title="email.message.Message"><tt class="xref py py-class docutils literal"><span class="pre">Message</span></tt></a> objects can also optionally contain two instance attributes,
which can be used when generating the plain text of a MIME message.</p>
<dl class="attribute">
<dt id="email.message.Message.preamble">
<tt class="descname">preamble</tt><a class="headerlink" href="#email.message.Message.preamble" title="Permalink to this definition">¶</a></dt>
<dd><p>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.</p>
<p>The <em>preamble</em> attribute contains this leading extra-armor text for MIME
documents.  When the <a class="reference internal" href="email.parser.html#email.parser.Parser" title="email.parser.Parser"><tt class="xref py py-class docutils literal"><span class="pre">Parser</span></tt></a> discovers some text
after the headers but before the first boundary string, it assigns this
text to the message&#8217;s <em>preamble</em> attribute.  When the
<a class="reference internal" href="email.generator.html#email.generator.Generator" title="email.generator.Generator"><tt class="xref py py-class docutils literal"><span class="pre">Generator</span></tt></a> is writing out the plain text
representation of a MIME message, and it finds the
message has a <em>preamble</em> attribute, it will write this text in the area
between the headers and the first boundary.  See <a class="reference internal" href="email.parser.html#module-email.parser" title="email.parser: Parse flat text email messages to produce a message object structure."><tt class="xref py py-mod docutils literal"><span class="pre">email.parser</span></tt></a> and
<a class="reference internal" href="email.generator.html#module-email.generator" title="email.generator: Generate flat text email messages from a message structure."><tt class="xref py py-mod docutils literal"><span class="pre">email.generator</span></tt></a> for details.</p>
<p>Note that if the message object has no preamble, the <em>preamble</em> attribute
will be <tt class="docutils literal"><span class="pre">None</span></tt>.</p>
</dd></dl>

<dl class="attribute">
<dt id="email.message.Message.epilogue">
<tt class="descname">epilogue</tt><a class="headerlink" href="#email.message.Message.epilogue" title="Permalink to this definition">¶</a></dt>
<dd><p>The <em>epilogue</em> attribute acts the same way as the <em>preamble</em> attribute,
except that it contains text that appears between the last boundary and
the end of the message.</p>
<p class="versionchanged">
<span class="versionmodified">Changed in version 2.5: </span>You do not need to set the epilogue to the empty string in order for the
<tt class="xref py py-class docutils literal"><span class="pre">Generator</span></tt> to print a newline at the end of the file.</p>
</dd></dl>

<dl class="attribute">
<dt id="email.message.Message.defects">
<tt class="descname">defects</tt><a class="headerlink" href="#email.message.Message.defects" title="Permalink to this definition">¶</a></dt>
<dd><p>The <em>defects</em> attribute contains a list of all the problems found when
parsing this message.  See <a class="reference internal" href="email.errors.html#module-email.errors" title="email.errors: The exception classes used by the email package."><tt class="xref py py-mod docutils literal"><span class="pre">email.errors</span></tt></a> for a detailed description
of the possible parsing defects.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.4.</span></p>
</dd></dl>

</dd></dl>

</div>


          </div>
        </div>
      </div>
      <div class="sphinxsidebar">
        <div class="sphinxsidebarwrapper">
  <h4>Previous topic</h4>
  <p class="topless"><a href="email.html"
                        title="previous chapter">18.1. <tt class="docutils literal"><span class="pre">email</span></tt> &#8212; An email and MIME handling package</a></p>
  <h4>Next topic</h4>
  <p class="topless"><a href="email.parser.html"
                        title="next chapter">18.1.2. <tt class="docutils literal"><span class="pre">email.parser</span></tt>: Parsing email messages</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
  <li><a href="../bugs.html">Report a Bug</a></li>
  <li><a href="../_sources/library/email.message.txt"
         rel="nofollow">Show Source</a></li>
</ul>

<div id="searchbox" style="display: none">
  <h3>Quick search</h3>
    <form class="search" action="../search.html" method="get">
      <input type="text" name="q" />
      <input type="submit" value="Go" />
      <input type="hidden" name="check_keywords" value="yes" />
      <input type="hidden" name="area" value="default" />
    </form>
    <p class="searchtip" style="font-size: 90%">
    Enter search terms or a module, class or function name.
    </p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
        </div>
      </div>
      <div class="clearer"></div>
    </div>
    <div class="related">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../genindex.html" title="General Index"
             >index</a></li>
        <li class="right" >
          <a href="../py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="email.parser.html" title="18.1.2. email.parser: Parsing email messages"
             >next</a> |</li>
        <li class="right" >
          <a href="email.html" title="18.1. email — An email and MIME handling package"
             >previous</a> |</li>
        <li><img src="../_static/py.png" alt=""
                 style="vertical-align: middle; margin-top: -1px"/></li>
        <li><a href="http://www.python.org/">Python</a> &raquo;</li>
        <li>
          <a href="../index.html">Python 2.7.5 documentation</a> &raquo;
        </li>

          <li><a href="index.html" >The Python Standard Library</a> &raquo;</li>
          <li><a href="netdata.html" >18. Internet Data Handling</a> &raquo;</li>
          <li><a href="email.html" >18.1. <tt class="docutils literal"><span class="pre">email</span></tt> &#8212; An email and MIME handling package</a> &raquo;</li> 
      </ul>
    </div>
    <div class="footer">
    &copy; <a href="../copyright.html">Copyright</a> 1990-2019, Python Software Foundation.
    <br />
    The Python Software Foundation is a non-profit corporation.
    <a href="http://www.python.org/psf/donations/">Please donate.</a>
    <br />
    Last updated on Jul 03, 2019.
    <a href="../bugs.html">Found a bug</a>?
    <br />
    Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3.
    </div>

  </body>
</html>

Filemanager

Name Type Size Permission Actions
2to3.html File 49.27 KB 0644
__builtin__.html File 10.26 KB 0644
__future__.html File 13.79 KB 0644
__main__.html File 7.05 KB 0644
_winreg.html File 59.21 KB 0644
abc.html File 23.9 KB 0644
aepack.html File 13.16 KB 0644
aetools.html File 14.91 KB 0644
aetypes.html File 18.88 KB 0644
aifc.html File 22.4 KB 0644
al.html File 17.34 KB 0644
allos.html File 33.72 KB 0644
anydbm.html File 16.33 KB 0644
archiving.html File 9.26 KB 0644
argparse.html File 237.62 KB 0644
array.html File 29.29 KB 0644
ast.html File 34.98 KB 0644
asynchat.html File 31.43 KB 0644
asyncore.html File 36.51 KB 0644
atexit.html File 16.8 KB 0644
audioop.html File 31.36 KB 0644
autogil.html File 8.19 KB 0644
base64.html File 19.67 KB 0644
basehttpserver.html File 34.04 KB 0644
bastion.html File 11.04 KB 0644
bdb.html File 36.68 KB 0644
binascii.html File 20.67 KB 0644
binhex.html File 10.58 KB 0644
bisect.html File 23.24 KB 0644
bsddb.html File 26.43 KB 0644
bz2.html File 26.08 KB 0644
calendar.html File 37.79 KB 0644
carbon.html File 48.94 KB 0644
cd.html File 27.96 KB 0644
cgi.html File 49.92 KB 0644
cgihttpserver.html File 13.1 KB 0644
cgitb.html File 11.41 KB 0644
chunk.html File 14.66 KB 0644
cmath.html File 25.63 KB 0644
cmd.html File 26.09 KB 0644
code.html File 24.58 KB 0644
codecs.html File 100.64 KB 0644
codeop.html File 14.84 KB 0644
collections.html File 133.96 KB 0644
colorpicker.html File 7.52 KB 0644
colorsys.html File 11.04 KB 0644
commands.html File 14.36 KB 0644
compileall.html File 16.83 KB 0644
compiler.html File 67.75 KB 0644
configparser.html File 62.13 KB 0644
constants.html File 12.83 KB 0644
contextlib.html File 19.39 KB 0644
cookie.html File 39.07 KB 0644
cookielib.html File 83.82 KB 0644
copy.html File 12.19 KB 0644
copy_reg.html File 13.76 KB 0644
crypt.html File 10.04 KB 0644
crypto.html File 7.59 KB 0644
csv.html File 67.37 KB 0644
ctypes.html File 238.78 KB 0644
curses.ascii.html File 22.29 KB 0644
curses.html File 146.63 KB 0644
curses.panel.html File 14.39 KB 0644
custominterp.html File 7.62 KB 0644
datatypes.html File 16.84 KB 0644
datetime.html File 226.59 KB 0644
dbhash.html File 15.48 KB 0644
dbm.html File 12.07 KB 0644
debug.html File 10.15 KB 0644
decimal.html File 194.44 KB 0644
development.html File 14.17 KB 0644
difflib.html File 84.83 KB 0644
dircache.html File 11.41 KB 0644
dis.html File 69.95 KB 0644
distutils.html File 8.05 KB 0644
dl.html File 16.33 KB 0644
doctest.html File 165.54 KB 0644
docxmlrpcserver.html File 16.43 KB 0644
dumbdbm.html File 14.02 KB 0644
dummy_thread.html File 9.43 KB 0644
dummy_threading.html File 8.37 KB 0644
easydialogs.html File 30.55 KB 0644
email-examples.html File 45.65 KB 0644
email.charset.html File 26.8 KB 0644
email.encoders.html File 11.86 KB 0644
email.errors.html File 15.77 KB 0644
email.generator.html File 20.77 KB 0644
email.header.html File 26.92 KB 0644
email.html File 44.24 KB 0644
email.iterators.html File 11.52 KB 0644
email.message.html File 63.16 KB 0644
email.mime.html File 27.93 KB 0644
email.parser.html File 30.45 KB 0644
email.util.html File 24.46 KB 0644
errno.html File 37.99 KB 0644
exceptions.html File 56.13 KB 0644
fcntl.html File 22.67 KB 0644
filecmp.html File 22.3 KB 0644
fileformats.html File 9.14 KB 0644
fileinput.html File 24.28 KB 0644
filesys.html File 10.2 KB 0644
fl.html File 49.92 KB 0644
fm.html File 11.91 KB 0644
fnmatch.html File 14.58 KB 0644
formatter.html File 34.06 KB 0644
fpectl.html File 16.01 KB 0644
fpformat.html File 10.59 KB 0644
fractions.html File 22.61 KB 0644
framework.html File 33.34 KB 0644
frameworks.html File 7.14 KB 0644
ftplib.html File 43.99 KB 0644
functions.html File 183.14 KB 0644
functools.html File 27.17 KB 0644
future_builtins.html File 13.04 KB 0644
gc.html File 25.75 KB 0644
gdbm.html File 15.96 KB 0644
gensuitemodule.html File 11.51 KB 0644
getopt.html File 23.66 KB 0644
getpass.html File 10.65 KB 0644
gettext.html File 78.76 KB 0644
gl.html File 22.09 KB 0644
glob.html File 13.26 KB 0644
grp.html File 10.49 KB 0644
gzip.html File 18.99 KB 0644
hashlib.html File 18.2 KB 0644
heapq.html File 31.61 KB 0644
hmac.html File 10.46 KB 0644
hotshot.html File 18.65 KB 0644
htmllib.html File 25.32 KB 0644
htmlparser.html File 39.11 KB 0644
httplib.html File 62.95 KB 0644
i18n.html File 9.52 KB 0644
ic.html File 17.17 KB 0644
idle.html File 20.9 KB 0644
imageop.html File 14.76 KB 0644
imaplib.html File 51.99 KB 0644
imgfile.html File 11.71 KB 0644
imghdr.html File 11.3 KB 0644
imp.html File 34.34 KB 0644
importlib.html File 8.26 KB 0644
imputil.html File 31.81 KB 0644
index.html File 72.78 KB 0644
inspect.html File 50.71 KB 0644
internet.html File 24.87 KB 0644
intro.html File 8.93 KB 0644
io.html File 98.13 KB 0644
ipc.html File 13.41 KB 0644
itertools.html File 115.91 KB 0644
jpeg.html File 12.74 KB 0644
json.html File 67.04 KB 0644
keyword.html File 7.68 KB 0644
language.html File 11.03 KB 0644
linecache.html File 10.59 KB 0644
locale.html File 55.14 KB 0644
logging.config.html File 63.36 KB 0644
logging.handlers.html File 69.64 KB 0644
logging.html File 95.64 KB 0644
mac.html File 21.79 KB 0644
macos.html File 14.76 KB 0644
macosa.html File 12.96 KB 0644
macostools.html File 15.52 KB 0644
macpath.html File 7.76 KB 0644
mailbox.html File 156.75 KB 0644
mailcap.html File 13.21 KB 0644
markup.html File 18.77 KB 0644
marshal.html File 17.98 KB 0644
math.html File 39.24 KB 0644
md5.html File 13.97 KB 0644
mhlib.html File 21.54 KB 0644
mimetools.html File 19.25 KB 0644
mimetypes.html File 28.39 KB 0644
mimewriter.html File 15.02 KB 0644
mimify.html File 13.36 KB 0644
miniaeframe.html File 12.2 KB 0644
misc.html File 6.87 KB 0644
mm.html File 9.03 KB 0644
mmap.html File 28.36 KB 0644
modulefinder.html File 15.31 KB 0644
modules.html File 8.46 KB 0644
msilib.html File 52.43 KB 0644
msvcrt.html File 19.37 KB 0644
multifile.html File 24.3 KB 0644
multiprocessing.html File 365.71 KB 0644
mutex.html File 11.23 KB 0644
netdata.html File 16.98 KB 0644
netrc.html File 12.3 KB 0644
new.html File 12.12 KB 0644
nis.html File 10.64 KB 0644
nntplib.html File 41.92 KB 0644
numbers.html File 37.75 KB 0644
numeric.html File 13.55 KB 0644
operator.html File 82 KB 0644
optparse.html File 222.56 KB 0644
os.html File 214.25 KB 0644
os.path.html File 38.34 KB 0644
ossaudiodev.html File 41.5 KB 0644
othergui.html File 9.08 KB 0644
parser.html File 39.36 KB 0644
pdb.html File 33.96 KB 0644
persistence.html File 14.87 KB 0644
pickle.html File 102.27 KB 0644
pickletools.html File 10.63 KB 0644
pipes.html File 18.01 KB 0644
pkgutil.html File 25.11 KB 0644
platform.html File 28.37 KB 0644
plistlib.html File 17.03 KB 0644
popen2.html File 25.43 KB 0644
poplib.html File 22.32 KB 0644
posix.html File 14.41 KB 0644
posixfile.html File 19.76 KB 0644
pprint.html File 29.92 KB 0644
profile.html File 63.56 KB 0644
pty.html File 9.48 KB 0644
pwd.html File 11.43 KB 0644
py_compile.html File 11.12 KB 0644
pyclbr.html File 14.71 KB 0644
pydoc.html File 11.48 KB 0644
pyexpat.html File 71.53 KB 0644
python.html File 12.27 KB 0644
queue.html File 24.22 KB 0644
quopri.html File 11.9 KB 0644
random.html File 37.83 KB 0644
re.html File 134.74 KB 0644
readline.html File 28.24 KB 0644
repr.html File 20.43 KB 0644
resource.html File 26.48 KB 0644
restricted.html File 11.65 KB 0644
rexec.html File 37.41 KB 0644
rfc822.html File 42.22 KB 0644
rlcompleter.html File 13.51 KB 0644
robotparser.html File 12.27 KB 0644
runpy.html File 19.34 KB 0644
sched.html File 18.54 KB 0644
scrolledtext.html File 9.32 KB 0644
select.html File 39.67 KB 0644
sets.html File 36.92 KB 0644
sgi.html File 9.71 KB 0644
sgmllib.html File 30.77 KB 0644
sha.html File 12.09 KB 0644
shelve.html File 27.02 KB 0644
shlex.html File 32.1 KB 0644
shutil.html File 40.22 KB 0644
signal.html File 31.14 KB 0644
simplehttpserver.html File 18.41 KB 0644
simplexmlrpcserver.html File 31.39 KB 0644
site.html File 23.64 KB 0644
smtpd.html File 12.46 KB 0644
smtplib.html File 42.13 KB 0644
sndhdr.html File 10.02 KB 0644
socket.html File 106.34 KB 0644
socketserver.html File 59.83 KB 0644
someos.html File 15.11 KB 0644
spwd.html File 10.33 KB 0644
sqlite3.html File 139.5 KB 0644
ssl.html File 65.62 KB 0644
stat.html File 32.31 KB 0644
statvfs.html File 10.6 KB 0644
stdtypes.html File 260.4 KB 0644
string.html File 106.65 KB 0644
stringio.html File 18.81 KB 0644
stringprep.html File 16.13 KB 0644
strings.html File 14.93 KB 0644
struct.html File 40.88 KB 0644
subprocess.html File 84.91 KB 0644
sun.html File 6.84 KB 0644
sunau.html File 27.1 KB 0644
sunaudio.html File 17.79 KB 0644
symbol.html File 7.66 KB 0644
symtable.html File 22.94 KB 0644
sys.html File 98.7 KB 0644
sysconfig.html File 23.84 KB 0644
syslog.html File 17.92 KB 0644
tabnanny.html File 10.63 KB 0644
tarfile.html File 78.68 KB 0644
telnetlib.html File 25.48 KB 0644
tempfile.html File 29.42 KB 0644
termios.html File 16.01 KB 0644
test.html File 52.62 KB 0644
textwrap.html File 27.25 KB 0644
thread.html File 20.47 KB 0644
threading.html File 76.69 KB 0644
time.html File 56.93 KB 0644
timeit.html File 36.27 KB 0644
tix.html File 46.96 KB 0644
tk.html File 23.64 KB 0644
tkinter.html File 67.67 KB 0644
token.html File 19.62 KB 0644
tokenize.html File 18.45 KB 0644
trace.html File 25.54 KB 0644
traceback.html File 33.44 KB 0644
ttk.html File 101.75 KB 0644
tty.html File 9.06 KB 0644
turtle.html File 211.74 KB 0644
types.html File 27.59 KB 0644
undoc.html File 23.16 KB 0644
unicodedata.html File 18.55 KB 0644
unittest.html File 202.85 KB 0644
unix.html File 10.55 KB 0644
urllib.html File 58.68 KB 0644
urllib2.html File 100.58 KB 0644
urlparse.html File 40.41 KB 0644
user.html File 11.83 KB 0644
userdict.html File 29.73 KB 0644
uu.html File 11.03 KB 0644
uuid.html File 28.19 KB 0644
warnings.html File 46.6 KB 0644
wave.html File 22.22 KB 0644
weakref.html File 36.52 KB 0644
webbrowser.html File 23.07 KB 0644
whichdb.html File 8.85 KB 0644
windows.html File 9.33 KB 0644
winsound.html File 18.75 KB 0644
wsgiref.html File 81.04 KB 0644
xdrlib.html File 29.94 KB 0644
xml.dom.html File 89.04 KB 0644
xml.dom.minidom.html File 40.42 KB 0644
xml.dom.pulldom.html File 12.71 KB 0644
xml.etree.elementtree.html File 93.22 KB 0644
xml.html File 16.49 KB 0644
xml.sax.handler.html File 38.63 KB 0644
xml.sax.html File 20.22 KB 0644
xml.sax.reader.html File 39.09 KB 0644
xml.sax.utils.html File 14.26 KB 0644
xmlrpclib.html File 60.79 KB 0644
zipfile.html File 53.14 KB 0644
zipimport.html File 20.42 KB 0644
zlib.html File 25.46 KB 0644