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<H1><A NAME="SECTION00141500000000000000000">
12.15 <tt class="module">quopri</tt> --
Encode and decode MIME quoted-printable data</A>
</H1>
<P>
<P>
This module performs quoted-printable transport encoding and decoding,
as defined in <a class="rfc" name="rfcref-64075"
href="http://www.faqs.org/rfcs/rfc1521.html">RFC 1521</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
<tt class="module"><a href="module-base64.html">base64</a></tt> module is more compact if there are many such
characters, as when sending a graphics file.
<a name="l2h-3046"> </a>
<P>
<dl><dt><b><a name="l2h-3042"><tt class="function">decode</tt></a></b>(<var>input, output</var><big>[</big><var>,header</var><big>]</big>)
<dd>
Decode the contents of the <var>input</var> file and write the resulting
decoded binary data to the <var>output</var> file.
<var>input</var> and <var>output</var> must either be file objects or objects that
mimic the file object interface. <var>input</var> will be read until
<code><var>input</var>.readline()</code> returns an empty string.
If the optional argument <var>header</var> is present and true, underscore
will be decoded as space. This is used to decode
``Q''-encoded headers as described in <a class="rfc" name="rfcref-64080"
href="http://www.faqs.org/rfcs/rfc1522.html">RFC 1522</a>: ``MIME (Multipurpose Internet Mail Extensions)
Part Two: Message Header Extensions for Non-ASCII Text''.
</dl>
<P>
<dl><dt><b><a name="l2h-3043"><tt class="function">encode</tt></a></b>(<var>input, output, quotetabs</var>)
<dd>
Encode the contents of the <var>input</var> file and write the resulting
quoted-printable data to the <var>output</var> file.
<var>input</var> and <var>output</var> must either be file objects or objects that
mimic the file object interface. <var>input</var> will be read until
<code><var>input</var>.readline()</code> returns an empty string.
<var>quotetabs</var> 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 <a class="rfc" name="rfcref-64082"
href="http://www.faqs.org/rfcs/rfc1521.html">RFC 1521</a>.
</dl>
<P>
<dl><dt><b><a name="l2h-3044"><tt class="function">decodestring</tt></a></b>(<var>s</var><big>[</big><var>,header</var><big>]</big>)
<dd>
Like <tt class="function">decode()</tt>, except that it accepts a source string and
returns the corresponding decoded string.
</dl>
<P>
<dl><dt><b><a name="l2h-3045"><tt class="function">encodestring</tt></a></b>(<var>s</var><big>[</big><var>, quotetabs</var><big>]</big>)
<dd>
Like <tt class="function">encode()</tt>, except that it accepts a source string and
returns the corresponding encoded string. <var>quotetabs</var> is optional
(defaulting to 0), and is passed straight through to
<tt class="function">encode()</tt>.
</dl>
<P>
<div class="seealso">
<p class="heading"><b>See Also:</b></p>
<dl compact class="seemodule">
<dt>Module <b><tt class="module"><a href="module-mimify.html">mimify</a></tt>:</b>
<dd>General utilities for processing of MIME messages.
</dl>
<dl compact class="seemodule">
<dt>Module <b><tt class="module"><a href="module-base64.html">base64</a></tt>:</b>
<dd>Encode and decode MIME base64 data.
</dl>
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<span class="release-info">Release 2.2, documentation updated on December 21, 2001.</span>
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