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+<H1><A NAME="SECTION002100000000000000000">
+1.1 <tt class="module">httplib2</tt>
+ A comprehensive HTTP client library. </A>
+</H1>
+
+<P>
+<A NAME="module-httplib2"></A>
+<P>
+
+<P>
+
+<P>
+The <tt class="module">httplib2</tt> module is a comprehensive HTTP client library with the following features:
+
+<P>
+<DL>
+<DT><STRONG>HTTP and HTTPS</STRONG></DT>
+<DD>HTTPS support is only available if the socket module was compiled with SSL support.
+</DD>
+<DT><STRONG>Keep-Alive</STRONG></DT>
+<DD>Supports HTTP 1.1 Keep-Alive, keeping the socket open and performing multiple requests over the same connection if possible.
+</DD>
+<DT><STRONG>Authentication</STRONG></DT>
+<DD>The following three types of HTTP Authentication are supported. These can be used over both HTTP and HTTPS.
+
+<UL>
+<LI>Digest
+</LI>
+<LI>Basic
+</LI>
+<LI>WSSE
+
+</LI>
+</UL>
+</DD>
+<DT><STRONG>Caching</STRONG></DT>
+<DD>The module can optionally operate with a private cache that understands the Cache-Control: header and uses both the ETag and Last-Modified cache validators.
+</DD>
+<DT><STRONG>All Methods</STRONG></DT>
+<DD>The module can handle any HTTP request method, not just GET and POST.
+</DD>
+<DT><STRONG>Redirects</STRONG></DT>
+<DD>Automatically follows 3XX redirects on GETs.
+</DD>
+<DT><STRONG>Compression</STRONG></DT>
+<DD>Handles both 'deflate' and 'gzip' types of compression.
+</DD>
+<DT><STRONG>Lost update support</STRONG></DT>
+<DD>Automatically adds back ETags into PUT requests to resources we have already cached. This implements Section 3.2 of Detecting the Lost Update Problem Using Unreserved Checkout
+</DD>
+</DL>
+
+<P>
+The <tt class="module">httplib2</tt> module defines the following variables:
+
+<P>
+<dl><dt><b><tt id='l2h-2' xml:id='l2h-2'>debuglevel</tt></b></dt>
+<dd>
+The amount of debugging information to print. The default is 0.
+</dd></dl>
+
+<P>
+The <tt class="module">httplib2</tt> module may raise the following Exceptions:
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-3' xml:id='l2h-3' class="exception">HttpLib2Error</tt></b></dt>
+<dd>
+The Base Exception for all exceptions raised by httplib2.
+</dd></dl>
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-4' xml:id='l2h-4' class="exception">RedirectMissingLocation</tt></b></dt>
+<dd>
+A 3xx redirect response code was provided but no Location: header
+was provided to point to the new location.
+</dd></dl>
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-5' xml:id='l2h-5' class="exception">RedirectLimit</tt></b></dt>
+<dd>
+The maximum number of redirections was reached without coming to a final URI.
+</dd></dl>
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-6' xml:id='l2h-6' class="exception">FailedToDecompressContent</tt></b></dt>
+<dd>
+The headers claimed that the content of the response was compressed but the
+decompression algorithm applied to the content failed.
+</dd></dl>
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-7' xml:id='l2h-7' class="exception">UnimplementedDigestAuthOptionError</tt></b></dt>
+<dd>
+The server requested a type of Digest authentication that we
+are unfamiliar with.
+</dd></dl>
+
+<P>
+<dl><dt><b><span class="typelabel">exception</span> <tt id='l2h-8' xml:id='l2h-8' class="exception">UnimplementedHmacDigestAuthOptionError</tt></b></dt>
+<dd>
+The server requested a type of HMACDigest authentication that we
+are unfamiliar with.
+</dd></dl>
+
+<P>
+<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
+ <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-9' xml:id='l2h-9' class="class">Http</tt></b>(</nobr></td>
+ <td><var></var><big>[</big><var>cache=None</var><big>]</big><var></var>)</td></tr></table></dt>
+<dd>
+The class that represents a client HTTP interface.
+The <var>cache</var> parameter is either the name of a directory
+to be used as a flat file cache, or it must an object that
+implements the required caching interface.
+</dl>
+
+<P>
+<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
+ <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-10' xml:id='l2h-10' class="class">Response</tt></b>(</nobr></td>
+ <td><var>info</var>)</td></tr></table></dt>
+<dd>
+Response is a subclass of <tt class="class">dict</tt> and instances of this
+class are returned from calls
+to Http.request. The <var>info</var> parameter is either
+an <tt class="class">rfc822.Message</tt> or an <tt class="class">httplib.HTTPResponse</tt> object.
+</dl>
+
+<P>
+
+<p><br /></p><hr class='online-navigation' />
+<div class='online-navigation'>
+<!--Table of Child-Links-->
+<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a>
+
+<UL CLASS="ChildLinks">
+<LI><A href="http-objects.html">1.1.1 Http Objects</a>
+<LI><A href="cache-objects.html">1.1.2 Cache Objects</a>
+<LI><A href="response-objects.html">1.1.3 Response Objects</a>
+<LI><A href="httplib2-example.html">1.1.4 Examples</a>
+</ul>
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+<span class="release-info">Release 0.2, documentation updated on July 2, 2006.</span>
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