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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="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>18.15. quopri — Encode and decode MIME quoted-printable data — Python 2.7.18 documentation</title> <link rel="stylesheet" href="../_static/classic.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></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/language_data.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 2.7.18 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="18.16. uu — Encode and decode uuencode files" href="uu.html" /> <link rel="prev" title="18.14. binascii — Convert between binary and ASCII" href="binascii.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="file:///usr/share/doc/python2.7/html/library/quopri.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div id="outdated-warning" style="padding: .5em; text-align: center; background-color: #FFBABA; color: #6A0E0E;"> This document is for an old version of Python that is <a href="https://devguide.python.org/devcycle/#end-of-life-branches">no longer supported</a>. You should install the python3 and python3-doc packages and read the <a href="file:///usr/share/doc/python3-doc/html/library/quopri.html"> Python documentation for the Python3 version packaged in this release</a>. </div> <div class="related" role="navigation" aria-label="related navigation"> <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="uu.html" title="18.16. uu — Encode and decode uuencode files" accesskey="N">next</a> |</li> <li class="right" > <a href="binascii.html" title="18.14. binascii — Convert between binary and ASCII" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.18 documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><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" role="main"> <div class="section" id="module-quopri"> <span id="quopri-encode-and-decode-mime-quoted-printable-data"></span><h1>18.15. <a class="reference internal" href="#module-quopri" title="quopri: Encode and decode files using the MIME quoted-printable encoding."><code class="xref py py-mod docutils literal notranslate"><span class="pre">quopri</span></code></a> — Encode and decode MIME quoted-printable data<a class="headerlink" href="#module-quopri" title="Permalink to this headline">¶</a></h1> <p id="index-0"><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/2.7/Lib/quopri.py">Lib/quopri.py</a></p> <hr class="docutils" /> <p>This module performs quoted-printable transport encoding and decoding, as defined in <span class="target" id="index-1"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc1521.html"><strong>RFC 1521</strong></a>: “MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies”. The quoted-printable encoding is designed for data where there are relatively few nonprintable characters; the base64 encoding scheme available via the <a class="reference internal" href="base64.html#module-base64" title="base64: RFC 3548: Base16, Base32, Base64 Data Encodings"><code class="xref py py-mod docutils literal notranslate"><span class="pre">base64</span></code></a> module is more compact if there are many such characters, as when sending a graphics file.</p> <dl class="function"> <dt id="quopri.decode"> <code class="descclassname">quopri.</code><code class="descname">decode</code><span class="sig-paren">(</span><em>input</em>, <em>output</em><span class="optional">[</span>, <em>header</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#quopri.decode" title="Permalink to this definition">¶</a></dt> <dd><p>Decode the contents of the <em>input</em> file and write the resulting decoded binary data to the <em>output</em> file. <em>input</em> and <em>output</em> must either be file objects or objects that mimic the file object interface. <em>input</em> will be read until <code class="docutils literal notranslate"><span class="pre">input.readline()</span></code> returns an empty string. If the optional argument <em>header</em> is present and true, underscore will be decoded as space. This is used to decode “Q”-encoded headers as described in <span class="target" id="index-2"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc1522.html"><strong>RFC 1522</strong></a>: “MIME (Multipurpose Internet Mail Extensions) Part Two: Message Header Extensions for Non-ASCII Text”.</p> </dd></dl> <dl class="function"> <dt id="quopri.encode"> <code class="descclassname">quopri.</code><code class="descname">encode</code><span class="sig-paren">(</span><em>input</em>, <em>output</em>, <em>quotetabs</em><span class="sig-paren">)</span><a class="headerlink" href="#quopri.encode" title="Permalink to this definition">¶</a></dt> <dd><p>Encode the contents of the <em>input</em> file and write the resulting quoted-printable data to the <em>output</em> file. <em>input</em> and <em>output</em> must either be file objects or objects that mimic the file object interface. <em>input</em> will be read until <code class="docutils literal notranslate"><span class="pre">input.readline()</span></code> returns an empty string. <em>quotetabs</em> is a flag which controls whether to encode embedded spaces and tabs; when true it encodes such embedded whitespace, and when false it leaves them unencoded. Note that spaces and tabs appearing at the end of lines are always encoded, as per <span class="target" id="index-3"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc1521.html"><strong>RFC 1521</strong></a>.</p> </dd></dl> <dl class="function"> <dt id="quopri.decodestring"> <code class="descclassname">quopri.</code><code class="descname">decodestring</code><span class="sig-paren">(</span><em>s</em><span class="optional">[</span>, <em>header</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#quopri.decodestring" title="Permalink to this definition">¶</a></dt> <dd><p>Like <a class="reference internal" href="#quopri.decode" title="quopri.decode"><code class="xref py py-func docutils literal notranslate"><span class="pre">decode()</span></code></a>, except that it accepts a source string and returns the corresponding decoded string.</p> </dd></dl> <dl class="function"> <dt id="quopri.encodestring"> <code class="descclassname">quopri.</code><code class="descname">encodestring</code><span class="sig-paren">(</span><em>s</em><span class="optional">[</span>, <em>quotetabs</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#quopri.encodestring" title="Permalink to this definition">¶</a></dt> <dd><p>Like <a class="reference internal" href="#quopri.encode" title="quopri.encode"><code class="xref py py-func docutils literal notranslate"><span class="pre">encode()</span></code></a>, except that it accepts a source string and returns the corresponding encoded string. <em>quotetabs</em> is optional (defaulting to 0), and is passed straight through to <a class="reference internal" href="#quopri.encode" title="quopri.encode"><code class="xref py py-func docutils literal notranslate"><span class="pre">encode()</span></code></a>.</p> </dd></dl> <div class="admonition seealso"> <p class="first admonition-title">See also</p> <dl class="last docutils"> <dt>Module <a class="reference internal" href="mimify.html#module-mimify" title="mimify: Mimification and unmimification of mail messages. (deprecated)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">mimify</span></code></a></dt> <dd>General utilities for processing of MIME messages.</dd> <dt>Module <a class="reference internal" href="base64.html#module-base64" title="base64: RFC 3548: Base16, Base32, Base64 Data Encodings"><code class="xref py py-mod docutils literal notranslate"><span class="pre">base64</span></code></a></dt> <dd>Encode and decode MIME base64 data</dd> </dl> </div> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="binascii.html" title="previous chapter">18.14. <code class="docutils literal notranslate"><span class="pre">binascii</span></code> — Convert between binary and ASCII</a></p> <h4>Next topic</h4> <p class="topless"><a href="uu.html" title="next chapter">18.16. <code class="docutils literal notranslate"><span class="pre">uu</span></code> — Encode and decode uuencode files</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../_sources/library/quopri.rst.txt" rel="nofollow">Show Source</a></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <div class="searchformwrapper"> <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> </div> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <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="uu.html" title="18.16. uu — Encode and decode uuencode files" >next</a> |</li> <li class="right" > <a href="binascii.html" title="18.14. binascii — Convert between binary and ASCII" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.18 documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="netdata.html" >18. 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