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<!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>18.8. MimeWriter — Generic MIME file writer — 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. Internet Data Handling" href="netdata.html" /> <link rel="next" title="18.9. mimify — MIME processing of mail messages" href="mimify.html" /> <link rel="prev" title="18.7. mimetypes — Map filenames to MIME types" href="mimetypes.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="mimify.html" title="18.9. mimify — MIME processing of mail messages" accesskey="N">next</a> |</li> <li class="right" > <a href="mimetypes.html" title="18.7. mimetypes — Map filenames to MIME types" 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> »</li> <li> <a href="../index.html">Python 2.7.5 documentation</a> » </li> <li><a href="index.html" >The Python Standard Library</a> »</li> <li><a href="netdata.html" accesskey="U">18. Internet Data Handling</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="module-MimeWriter"> <span id="mimewriter-generic-mime-file-writer"></span><h1>18.8. <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-mod docutils literal"><span class="pre">MimeWriter</span></tt></a> — Generic MIME file writer<a class="headerlink" href="#module-MimeWriter" title="Permalink to this headline">¶</a></h1> <p class="deprecated"> <span class="versionmodified">Deprecated since version 2.3: </span>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 should be used in preference to the <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-mod docutils literal"><span class="pre">MimeWriter</span></tt></a> module. This module is present only to maintain backward compatibility.</p> <p>This module defines the class <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a>. The <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a> class implements a basic formatter for creating MIME multi-part files. It doesn’t seek around the output file nor does it use large amounts of buffer space. You must write the parts out in the order that they should occur in the final file. <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a> does buffer the headers you add, allowing you to rearrange their order.</p> <dl class="class"> <dt id="MimeWriter.MimeWriter"> <em class="property">class </em><tt class="descclassname">MimeWriter.</tt><tt class="descname">MimeWriter</tt><big>(</big><em>fp</em><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter" title="Permalink to this definition">¶</a></dt> <dd><p>Return a new instance of the <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a> class. The only argument passed, <em>fp</em>, is a file object to be used for writing. Note that a <a class="reference internal" href="stringio.html#module-StringIO" title="StringIO: Read and write strings as if they were files."><tt class="xref py py-class docutils literal"><span class="pre">StringIO</span></tt></a> object could also be used.</p> </dd></dl> <div class="section" id="mimewriter-objects"> <span id="id1"></span><h2>18.8.1. MimeWriter Objects<a class="headerlink" href="#mimewriter-objects" title="Permalink to this headline">¶</a></h2> <p><a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a> instances have the following methods:</p> <dl class="method"> <dt id="MimeWriter.MimeWriter.addheader"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">addheader</tt><big>(</big><em>key</em>, <em>value</em><span class="optional">[</span>, <em>prefix</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.addheader" title="Permalink to this definition">¶</a></dt> <dd><p>Add a header line to the MIME message. The <em>key</em> is the name of the header, where the <em>value</em> obviously provides the value of the header. The optional argument <em>prefix</em> determines where the header is inserted; <tt class="docutils literal"><span class="pre">0</span></tt> means append at the end, <tt class="docutils literal"><span class="pre">1</span></tt> is insert at the start. The default is to append.</p> </dd></dl> <dl class="method"> <dt id="MimeWriter.MimeWriter.flushheaders"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">flushheaders</tt><big>(</big><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.flushheaders" title="Permalink to this definition">¶</a></dt> <dd><p>Causes all headers accumulated so far to be written out (and forgotten). This is useful if you don’t need a body part at all, e.g. for a subpart of type <em class="mimetype">message/rfc822</em> that’s (mis)used to store some header-like information.</p> </dd></dl> <dl class="method"> <dt id="MimeWriter.MimeWriter.startbody"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">startbody</tt><big>(</big><em>ctype</em><span class="optional">[</span>, <em>plist</em><span class="optional">[</span>, <em>prefix</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.startbody" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a file-like object which can be used to write to the body of the message. The content-type is set to the provided <em>ctype</em>, and the optional parameter <em>plist</em> provides additional parameters for the content-type declaration. <em>prefix</em> functions as in <a class="reference internal" href="#MimeWriter.MimeWriter.addheader" title="MimeWriter.MimeWriter.addheader"><tt class="xref py py-meth docutils literal"><span class="pre">addheader()</span></tt></a> except that the default is to insert at the start.</p> </dd></dl> <dl class="method"> <dt id="MimeWriter.MimeWriter.startmultipartbody"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">startmultipartbody</tt><big>(</big><em>subtype</em><span class="optional">[</span>, <em>boundary</em><span class="optional">[</span>, <em>plist</em><span class="optional">[</span>, <em>prefix</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.startmultipartbody" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a file-like object which can be used to write to the body of the message. Additionally, this method initializes the multi-part code, where <em>subtype</em> provides the multipart subtype, <em>boundary</em> may provide a user-defined boundary specification, and <em>plist</em> provides optional parameters for the subtype. <em>prefix</em> functions as in <a class="reference internal" href="#MimeWriter.MimeWriter.startbody" title="MimeWriter.MimeWriter.startbody"><tt class="xref py py-meth docutils literal"><span class="pre">startbody()</span></tt></a>. Subparts should be created using <a class="reference internal" href="#MimeWriter.MimeWriter.nextpart" title="MimeWriter.MimeWriter.nextpart"><tt class="xref py py-meth docutils literal"><span class="pre">nextpart()</span></tt></a>.</p> </dd></dl> <dl class="method"> <dt id="MimeWriter.MimeWriter.nextpart"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">nextpart</tt><big>(</big><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.nextpart" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a new instance of <a class="reference internal" href="#module-MimeWriter" title="MimeWriter: Write MIME format files. (deprecated)"><tt class="xref py py-class docutils literal"><span class="pre">MimeWriter</span></tt></a> which represents an individual part in a multipart message. This may be used to write the part as well as used for creating recursively complex multipart messages. The message must first be initialized with <a class="reference internal" href="#MimeWriter.MimeWriter.startmultipartbody" title="MimeWriter.MimeWriter.startmultipartbody"><tt class="xref py py-meth docutils literal"><span class="pre">startmultipartbody()</span></tt></a> before using <a class="reference internal" href="#MimeWriter.MimeWriter.nextpart" title="MimeWriter.MimeWriter.nextpart"><tt class="xref py py-meth docutils literal"><span class="pre">nextpart()</span></tt></a>.</p> </dd></dl> <dl class="method"> <dt id="MimeWriter.MimeWriter.lastpart"> <tt class="descclassname">MimeWriter.</tt><tt class="descname">lastpart</tt><big>(</big><big>)</big><a class="headerlink" href="#MimeWriter.MimeWriter.lastpart" title="Permalink to this definition">¶</a></dt> <dd><p>This is used to designate the last part of a multipart message, and should <em>always</em> be used when writing multipart messages.</p> </dd></dl> </div> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3><a href="../contents.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">18.8. <tt class="docutils literal"><span class="pre">MimeWriter</span></tt> — Generic MIME file writer</a><ul> <li><a class="reference internal" href="#mimewriter-objects">18.8.1. MimeWriter Objects</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="mimetypes.html" title="previous chapter">18.7. <tt class="docutils literal"><span class="pre">mimetypes</span></tt> — Map filenames to MIME types</a></p> <h4>Next topic</h4> <p class="topless"><a href="mimify.html" title="next chapter">18.9. <tt class="docutils literal"><span class="pre">mimify</span></tt> — MIME processing of mail 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/mimewriter.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="mimify.html" title="18.9. mimify — MIME processing of mail messages" >next</a> |</li> <li class="right" > <a href="mimetypes.html" title="18.7. mimetypes — Map filenames to MIME types" >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> »</li> <li> <a href="../index.html">Python 2.7.5 documentation</a> » </li> <li><a href="index.html" >The Python Standard Library</a> »</li> <li><a href="netdata.html" >18. 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