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<![endif]--><script type="text/javascript" src="common/browserDetect.js"></script><script type="text/javascript" src="common/jquery/jquery-1.7.2.min.js"></script><script type="text/javascript" src="common/jquery/jquery.ui.all.js"></script><script type="text/javascript" src="common/jquery/jquery.cookie.js"></script><script type="text/javascript" src="common/jquery/treeview/jquery.treeview.min.js"></script><script type="text/javascript" src="common/jquery/layout/jquery.layout.js"></script><script type="text/javascript" src="search/l10n.js"></script><script type="text/javascript" src="search/htmlFileInfoList.js"></script><script type="text/javascript" src="search/nwSearchFnt.js"></script><script type="text/javascript" src="search/stemmers/en_stemmer.js"><!--//make this scalable to other languages as well.--></script><script type="text/javascript" src="search/index-1.js"></script><script type="text/javascript" src="search/index-2.js"></script><script type="text/javascript" src="search/index-3.js"></script></head><body><noscript><div id="noscript">JavaScript is disabled on your browser. Please enable JavaScript to enjoy all the features of this site.</div></noscript><div id="header"><a href="index.html"><img style="margin-right: 2px; height: 59px; padding-right: 25px; padding-top: 8px" align="right" src="common/images/logo.png" alt=" Documentation"></img></a><h1>Recoll user manual<br></br>Python interface</h1><div id="navheader"><table class="navLinks"><tr><td><a id="showHideButton" href="#" onclick="myLayout.toggle('west')" class="pointLeft" tabindex="5" title="Hide TOC tree">Sidebar
</a></td><td><a accesskey="p" class="navLinkPrevious" tabindex="5" href="RCL.PROGRAM.API.PYTHON.html">Prev</a>
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<a accesskey="n" class="navLinkNext" tabindex="5" href="RCL.PROGRAM.PYTHON.PACKAGE.html">Next</a></td></tr></table></div></div><div id="content"><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a id="RCL.PROGRAM.PYTHON.INTRO"></a>Introduction</h4></div></div></div><p><span class="application">Recoll</span> versions after 1.11 define a Python programming
interface, both for searching and indexing. The indexing
portion has seen little use, but the searching one is used
in the Recoll Ubuntu Unity Lens and Recoll Web UI.</p><p>The API is inspired by the Python database API
specification. There were two major changes in recent <span class="application">Recoll</span>
versions:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">The basis for the <span class="application">Recoll</span> API changed from Python
database API version 1.0 (<span class="application">Recoll</span> versions up to 1.18.1),
to version 2.0 (<span class="application">Recoll</span> 1.18.2 and later).</li><li class="listitem">The <code class="literal">recoll</code> module became a
package (with an internal <code class="literal">recoll</code>
module) as of <span class="application">Recoll</span> version 1.19, in order to add more
functions. For existing code, this only changes the way
the interface must be imported.</li></ul></div><p>
</p><p>We will mostly describe the new API and package
structure here. A paragraph at the end of this section will
explain a few differences and ways to write code
compatible with both versions.</p><p>The Python interface can be found in the source package,
under <code class="filename">python/recoll</code>.</p><p>The <code class="filename">python/recoll/</code> directory
contains the usual <code class="filename">setup.py</code>. After
configuring the main <span class="application">Recoll</span> code, you can use the script to
build and install the Python module:
</p><pre class="screen">
<strong class="userinput"><code>cd recoll-xxx/python/recoll</code></strong>
<strong class="userinput"><code>python setup.py build</code></strong>
<strong class="userinput"><code>python setup.py install</code></strong>
</pre><p>
</p><p>The normal <span class="application">Recoll</span> installer installs the Python
API along with the main code.</p><p>When installing from a repository, and depending on the
distribution, the Python API can sometimes be found in a
separate package.</p></div><script type="text/javascript" src="common/main.js"></script><script type="text/javascript" src="common/splitterInit.js"></script><div class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="RCL.PROGRAM.API.PYTHON.html">Prev</a>��</td><td width="20%" align="center"><a accesskey="u" href="RCL.PROGRAM.API.PYTHON.html">Up</a></td><td width="40%" align="right">��<a accesskey="n" href="RCL.PROGRAM.PYTHON.PACKAGE.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">��</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">��</td></tr></table></div></div><div id="sidebar"><div id="leftnavigation" style="padding-top:3px;"><div id="tabs"><ul><li><a href="#treeDiv" style="outline:0;" tabindex="1"><span class="contentsTab">Contents</span></a></li><li><a href="#searchDiv" style="outline:0;" tabindex="1" onclick="doSearch()"><span class="searchTab">Search</span></a></li></ul><div id="treeDiv"><img src="common/images/loading.gif" alt="loading table of contents..." id="tocLoading" style="display:block;"></img><div id="ulTreeDiv" style="display:none"><ul id="tree" class="filetree"><li><span class="file"><a href="RCL.INTRODUCTION.html" tabindex="1">Introduction</a></span><ul><li><span class="file"><a href="RCL.INTRODUCTION.TRYIT.html" tabindex="1">Giving it a try</a></span></li><li><span class="file"><a href="RCL.INTRODUCTION.SEARCH.html" tabindex="1">Full text search</a></span></li><li><span class="file"><a href="RCL.INTRODUCTION.RECOLL.html" tabindex="1">Recoll overview</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.html" tabindex="1">Indexing</a></span><ul><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.html" tabindex="1">Introduction</a></span><ul><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.MODES.html" tabindex="1">Indexing modes</a></span></li><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.CONFIG.html" tabindex="1">Configurations, multiple indexes</a></span></li><li><span class="file"><a href="ch02s01s03.html" tabindex="1">Document types</a></span></li><li><span class="file"><a href="ch02s01s04.html" tabindex="1">Indexing failures</a></span></li><li><span class="file"><a href="ch02s01s05.html" tabindex="1">Recovery</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.STORAGE.html" tabindex="1">Index storage</a></span><ul><li><span class="file"><a href="RCL.INDEXING.STORAGE.FORMAT.html" tabindex="1">Xapian index formats</a></span></li><li><span class="file"><a href="RCL.INDEXING.STORAGE.SECURITY.html" tabindex="1">Security aspects</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.html" tabindex="1">Index configuration</a></span><ul><li><span class="file"><a href="RCL.INDEXING.CONFIG.MULTIPLE.html" tabindex="1">Multiple indexes</a></span></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.SENS.html" tabindex="1">Index case and diacritics sensitivity</a></span></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.GUI.html" tabindex="1">The index configuration GUI</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.WEBQUEUE.html" tabindex="1">Indexing WEB pages you wisit</a></span></li><li><span class="file"><a href="RCL.INDEXING.EXTATTR.html" tabindex="1">Extended attributes data</a></span></li><li><span class="file"><a href="RCL.INDEXING.EXTTAGS.html" tabindex="1">Importing external tags</a></span></li><li><span class="file"><a href="RCL.INDEXING.PERIODIC.html" tabindex="1">Periodic indexing</a></span><ul><li><span class="file"><a href="RCL.INDEXING.PERIODIC.EXEC.html" tabindex="1">Running indexing</a></span></li><li><span class="file"><a href="RCL.INDEXING.PERIODIC.AUTOMAT.html" tabindex="1">Using cron to automate
indexing</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.MONITOR.html" tabindex="1">Real time indexing</a></span><ul><li><span class="file"><a href="RCL.INDEXING.MONITOR.FASTFILES.html" tabindex="1">Slowing down the reindexing rate for fast changing
files</a></span></li></ul></li></ul></li><li><span class="file"><a href="RCL.SEARCH.html" tabindex="1">Searching</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.html" tabindex="1">Searching with the Qt graphical user interface</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.SIMPLE.html" tabindex="1">Simple search</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.RESLIST.html" tabindex="1">The default result list</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.RESLIST.SUGGS.html" tabindex="1">No results: the spelling suggestions</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.RESULTLIST.MENU.html" tabindex="1">The result list right-click menu</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.GUI.RESTABLE.html" tabindex="1">The result table</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.RUNSCRIPT.html" tabindex="1">Running arbitrary commands on result files (1.20 and later)</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.THUMBNAILS.html" tabindex="1">Displaying thumbnails</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.PREVIEW.html" tabindex="1">The preview window</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.PREVIEW.SEARCH.html" tabindex="1">Searching inside the preview</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.GUI.FRAGBUTS.html" tabindex="1">The Query Fragments window</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.COMPLEX.html" tabindex="1">Complex/advanced search</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.COMPLEX.TERMS.html" tabindex="1">Avanced search: the "find" tab</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.COMPLEX.FILTER.html" tabindex="1">Avanced search: the "filter" tab</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.COMPLEX.HISTORY.html" tabindex="1">Avanced search history</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.GUI.TERMEXPLORER.html" tabindex="1">The term explorer tool</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.MULTIDB.html" tabindex="1">Multiple indexes</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.HISTORY.html" tabindex="1">Document history</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.SORT.html" tabindex="1">Sorting search results and collapsing duplicates</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.TIPS.html" tabindex="1">Search tips, shortcuts</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.TIPS.TERMS.html" tabindex="1">Terms and search expansion</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.TIPS.PHRASES.html" tabindex="1">Working with phrases and proximity</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.TIPS.MISC.html" tabindex="1">Others</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.SAVING.html" tabindex="1">Saving and restoring queries (1.21 and later)</a></span></li><li><span class="file"><a href="RCL.SEARCH.GUI.CUSTOM.html" tabindex="1">Customizing the search interface</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.CUSTOM.RESLIST.html" tabindex="1">The result list format</a></span><ul><li><span class="file"><a href="RCL.SEARCH.GUI.CUSTOM.RESLIST.html#RCL.SEARCH.GUI.CUSTOM.RESLIST.PARA" tabindex="1">The paragraph format</a></span></li></ul></li></ul></li></ul></li><li><span class="file"><a href="RCL.SEARCH.KIO.html" tabindex="1">Searching with the KDE KIO slave</a></span><ul><li><span class="file"><a href="RCL.SEARCH.KIO.INTRO.html" tabindex="1">What's this</a></span></li><li><span class="file"><a href="RCL.SEARCH.KIO.SEARCHABLEDOCS.html" tabindex="1">Searchable documents</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.COMMANDLINE.html" tabindex="1">Searching on the command line</a></span></li><li><span class="file"><a href="RCL.SEARCH.SYNONYMS.html" tabindex="1">Using Synonyms (Recoll 1.22 and later)</a></span></li><li><span class="file"><a href="RCL.SEARCH.PTRANS.html" tabindex="1">Path translations</a></span></li><li><span class="file"><a href="RCL.SEARCH.LANG.html" tabindex="1">The query language</a></span><ul><li><span class="file"><a href="RCL.SEARCH.LANG.MODIFIERS.html" tabindex="1">Modifiers</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.CASEDIAC.html" tabindex="1">Search case and diacritics sensitivity</a></span></li><li><span class="file"><a href="RCL.SEARCH.ANCHORWILD.html" tabindex="1">Anchored searches and wildcards</a></span><ul><li><span class="file"><a href="RCL.SEARCH.WILDCARDS.html" tabindex="1">More about wildcards</a></span><ul><li><span class="file"><a href="RCL.SEARCH.WILDCARDS.PATH.html" tabindex="1">Wildcards and path filtering</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.ANCHOR.html" tabindex="1">Anchored searches</a></span></li></ul></li><li><span class="file"><a href="RCL.SEARCH.DESKTOP.html" tabindex="1">Desktop integration</a></span><ul><li><span class="file"><a href="RCL.SEARCH.SHORTCUT.html" tabindex="1">Hotkeying recoll</a></span></li><li><span class="file"><a href="RCL.KICKER-APPLET.html" tabindex="1">The KDE Kicker Recoll applet</a></span></li></ul></li></ul></li><li><span class="file"><a href="RCL.PROGRAM.html" tabindex="1">Programming interface</a></span><ul><li><span class="file"><a href="RCL.PROGRAM.FILTERS.html" tabindex="1">Writing a document input handler</a></span><ul><li><span class="file"><a href="RCL.PROGRAM.FILTERS.SIMPLE.html" tabindex="1">Simple input handlers</a></span></li><li><span class="file"><a href="RCL.PROGRAM.FILTERS.MULTIPLE.html" tabindex="1">"Multiple" handlers</a></span></li><li><span class="file"><a href="RCL.PROGRAM.FILTERS.ASSOCIATION.html" tabindex="1">Telling Recoll about the handler</a></span></li><li><span class="file"><a href="RCL.PROGRAM.FILTERS.HTML.html" tabindex="1">Input handler HTML output</a></span></li><li><span class="file"><a href="RCL.PROGRAM.FILTERS.PAGES.html" tabindex="1">Page numbers</a></span></li></ul></li><li><span class="file"><a href="RCL.PROGRAM.FIELDS.html" tabindex="1">Field data processing</a></span></li><li><span class="file"><a href="RCL.PROGRAM.API.html" tabindex="1">API</a></span><ul><li><span class="file"><a href="RCL.PROGRAM.API.ELEMENTS.html" tabindex="1">Interface elements</a></span></li><li><span class="file"><a href="RCL.PROGRAM.API.PYTHON.html" tabindex="1">Python interface</a></span><ul><li id="webhelp-currentid"><span class="file"><a href="RCL.PROGRAM.PYTHON.INTRO.html" tabindex="1">Introduction</a></span></li><li><span class="file"><a href="RCL.PROGRAM.PYTHON.PACKAGE.html" tabindex="1">Recoll package</a></span></li><li><span class="file"><a href="RCL.PROGRAM.PYTHON.RECOLL.html" tabindex="1">The recoll module</a></span><ul><li><span class="file"><a 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