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  1. <!DOCTYPE html>
    2. 

  2. 

  3. <html lang="en" data-content_root="../../../">
    4. 

  4.   <head>
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  5.     <meta charset="utf-8" />
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    7. 

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    8. 

  8.     <title>searx.plugins.calculator &#8212; SearXNG Documentation (2025.5.1+1a1628149)</title>
    9. 

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  18.     <div class="related" role="navigation" aria-label="Related">
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  19.       <h3>Navigation</h3>
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  20.       <ul>
    21. 

  21.         <li class="right" style="margin-right: 10px">
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  22.           <a href="../../../genindex.html" title="General Index"
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  23.              accesskey="I">index</a></li>
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  25.           <a href="../../../py-modindex.html" title="Python Module Index"
    26. 

  26.              >modules</a> |</li>
    27. 

  27.         <li class="nav-item nav-item-0"><a href="../../../index.html">SearXNG Documentation (2025.5.1+1a1628149)</a> &#187;</li>
    28. 

  28.           <li class="nav-item nav-item-1"><a href="../../index.html" accesskey="U">Module code</a> &#187;</li>
    29. 

  29.         <li class="nav-item nav-item-this"><a href="">searx.plugins.calculator</a></li> 
    30. 

  30.       </ul>
    31. 

  31.     </div>  
    32. 

  32. 

  33.     <div class="document">
    34. 

  34.       <div class="documentwrapper">
    35. 

  35.         <div class="bodywrapper">
    36. 

  36.           <div class="body" role="main">
    37. 

  37.             
    38. 

  38.   <h1>Source code for searx.plugins.calculator</h1><div class="highlight"><pre>
    39. 

  39. <span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
    40. 

  40. <span class="sd">&quot;&quot;&quot;Calculate mathematical expressions using :py:obj:`ast.parse` (mode=&quot;eval&quot;).</span>
    41. 

  41. <span class="sd">&quot;&quot;&quot;</span>
    42. 

  42. 

  43. <span class="kn">from</span><span class="w"> </span><span class="nn">__future__</span><span class="w"> </span><span class="kn">import</span> <span class="n">annotations</span>
    44. 

  44. <span class="kn">import</span><span class="w"> </span><span class="nn">typing</span>
    45. 

  45. 

  46. <span class="kn">import</span><span class="w"> </span><span class="nn">ast</span>
    47. 

  47. <span class="kn">import</span><span class="w"> </span><span class="nn">re</span>
    48. 

  48. <span class="kn">import</span><span class="w"> </span><span class="nn">operator</span>
    49. 

  49. <span class="kn">import</span><span class="w"> </span><span class="nn">multiprocessing</span>
    50. 

  50. 

  51. <span class="kn">import</span><span class="w"> </span><span class="nn">babel</span>
    52. 

  52. <span class="kn">import</span><span class="w"> </span><span class="nn">babel.numbers</span>
    53. 

  53. <span class="kn">from</span><span class="w"> </span><span class="nn">flask_babel</span><span class="w"> </span><span class="kn">import</span> <span class="n">gettext</span>
    54. 

  54. 

  55. <span class="kn">from</span><span class="w"> </span><span class="nn">searx.result_types</span><span class="w"> </span><span class="kn">import</span> <span class="n">EngineResults</span>
    56. 

  56. <span class="kn">from</span><span class="w"> </span><span class="nn">searx.plugins</span><span class="w"> </span><span class="kn">import</span> <span class="n">Plugin</span><span class="p">,</span> <span class="n">PluginInfo</span>
    57. 

  57. 

  58. <span class="k">if</span> <span class="n">typing</span><span class="o">.</span><span class="n">TYPE_CHECKING</span><span class="p">:</span>
    59. 

  59.     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.search</span><span class="w"> </span><span class="kn">import</span> <span class="n">SearchWithPlugins</span>
    60. 

  60.     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.extended_types</span><span class="w"> </span><span class="kn">import</span> <span class="n">SXNG_Request</span>
    61. 

  61.     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.plugins</span><span class="w"> </span><span class="kn">import</span> <span class="n">PluginCfg</span>
    62. 

  62. 

  63. 

  64. <div class="viewcode-block" id="SXNGPlugin">
    65. 

  65. <a class="viewcode-back" href="../../../dev/plugins/calculator.html#searx.plugins.calculator.SXNGPlugin">[docs]</a>
    66. 

  66. <span class="k">class</span><span class="w"> </span><span class="nc">SXNGPlugin</span><span class="p">(</span><span class="n">Plugin</span><span class="p">):</span>
    67. 

  67. <span class="w">    </span><span class="sd">&quot;&quot;&quot;Plugin converts strings to different hash digests.  The results are</span>
    68. 

  68. <span class="sd">    displayed in area for the &quot;answers&quot;.</span>
    69. 

  69. <span class="sd">    &quot;&quot;&quot;</span>
    70. 

  70. 

  71.     <span class="nb">id</span> <span class="o">=</span> <span class="s2">&quot;calculator&quot;</span>
    72. 

  72. 

  73.     <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">plg_cfg</span><span class="p">:</span> <span class="s2">&quot;PluginCfg&quot;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
    74. 

  74.         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">plg_cfg</span><span class="p">)</span>
    75. 

  75. 

  76.         <span class="bp">self</span><span class="o">.</span><span class="n">info</span> <span class="o">=</span> <span class="n">PluginInfo</span><span class="p">(</span>
    77. 

  77.             <span class="nb">id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">,</span>
    78. 

  78.             <span class="n">name</span><span class="o">=</span><span class="n">gettext</span><span class="p">(</span><span class="s2">&quot;Basic Calculator&quot;</span><span class="p">),</span>
    79. 

  79.             <span class="n">description</span><span class="o">=</span><span class="n">gettext</span><span class="p">(</span><span class="s2">&quot;Calculate mathematical expressions via the search bar&quot;</span><span class="p">),</span>
    80. 

  80.             <span class="n">preference_section</span><span class="o">=</span><span class="s2">&quot;general&quot;</span><span class="p">,</span>
    81. 

  81.         <span class="p">)</span>
    82. 

  82. 

  83. <div class="viewcode-block" id="SXNGPlugin.post_search">
    84. 

  84. <a class="viewcode-back" href="../../../dev/plugins/calculator.html#searx.plugins.calculator.SXNGPlugin.post_search">[docs]</a>
    85. 

  85.     <span class="k">def</span><span class="w"> </span><span class="nf">post_search</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">:</span> <span class="s2">&quot;SXNG_Request&quot;</span><span class="p">,</span> <span class="n">search</span><span class="p">:</span> <span class="s2">&quot;SearchWithPlugins&quot;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">EngineResults</span><span class="p">:</span>
    86. 

  86.         <span class="n">results</span> <span class="o">=</span> <span class="n">EngineResults</span><span class="p">()</span>
    87. 

  87. 

  88.         <span class="c1"># only show the result of the expression on the first page</span>
    89. 

  89.         <span class="k">if</span> <span class="n">search</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">pageno</span> <span class="o">&gt;</span> <span class="mi">1</span><span class="p">:</span>
    90. 

  90.             <span class="k">return</span> <span class="n">results</span>
    91. 

  91. 

  92.         <span class="n">query</span> <span class="o">=</span> <span class="n">search</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">query</span>
    93. 

  93.         <span class="c1"># in order to avoid DoS attacks with long expressions, ignore long expressions</span>
    94. 

  94.         <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">query</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">100</span><span class="p">:</span>
    95. 

  95.             <span class="k">return</span> <span class="n">results</span>
    96. 

  96. 

  97.         <span class="c1"># replace commonly used math operators with their proper Python operator</span>
    98. 

  98.         <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">&quot;x&quot;</span><span class="p">,</span> <span class="s2">&quot;*&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">&quot;:&quot;</span><span class="p">,</span> <span class="s2">&quot;/&quot;</span><span class="p">)</span>
    99. 

  99. 

  100.         <span class="c1"># use UI language</span>
    101. 

  101.         <span class="n">ui_locale</span> <span class="o">=</span> <span class="n">babel</span><span class="o">.</span><span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">request</span><span class="o">.</span><span class="n">preferences</span><span class="o">.</span><span class="n">get_value</span><span class="p">(</span><span class="s2">&quot;locale&quot;</span><span class="p">),</span> <span class="n">sep</span><span class="o">=</span><span class="s2">&quot;-&quot;</span><span class="p">)</span>
    102. 

  102. 

  103.         <span class="c1"># parse the number system in a localized way</span>
    104. 

  104.         <span class="k">def</span><span class="w"> </span><span class="nf">_decimal</span><span class="p">(</span><span class="n">match</span><span class="p">:</span> <span class="n">re</span><span class="o">.</span><span class="n">Match</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
    105. 

  105.             <span class="n">val</span> <span class="o">=</span> <span class="n">match</span><span class="o">.</span><span class="n">string</span><span class="p">[</span><span class="n">match</span><span class="o">.</span><span class="n">start</span><span class="p">()</span> <span class="p">:</span> <span class="n">match</span><span class="o">.</span><span class="n">end</span><span class="p">()]</span>
    106. 

  106.             <span class="n">val</span> <span class="o">=</span> <span class="n">babel</span><span class="o">.</span><span class="n">numbers</span><span class="o">.</span><span class="n">parse_decimal</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">ui_locale</span><span class="p">,</span> <span class="n">numbering_system</span><span class="o">=</span><span class="s2">&quot;latn&quot;</span><span class="p">)</span>
    107. 

  107.             <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
    108. 

  108. 

  109.         <span class="n">decimal</span> <span class="o">=</span> <span class="n">ui_locale</span><span class="o">.</span><span class="n">number_symbols</span><span class="p">[</span><span class="s2">&quot;latn&quot;</span><span class="p">][</span><span class="s2">&quot;decimal&quot;</span><span class="p">]</span>
    110. 

  110.         <span class="n">group</span> <span class="o">=</span> <span class="n">ui_locale</span><span class="o">.</span><span class="n">number_symbols</span><span class="p">[</span><span class="s2">&quot;latn&quot;</span><span class="p">][</span><span class="s2">&quot;group&quot;</span><span class="p">]</span>
    111. 

  111.         <span class="n">query</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;[0-9]+[</span><span class="si">{</span><span class="n">decimal</span><span class="si">}</span><span class="s2">|</span><span class="si">{</span><span class="n">group</span><span class="si">}</span><span class="s2">][0-9]+[</span><span class="si">{</span><span class="n">decimal</span><span class="si">}</span><span class="s2">|</span><span class="si">{</span><span class="n">group</span><span class="si">}</span><span class="s2">]?[0-9]?&quot;</span><span class="p">,</span> <span class="n">_decimal</span><span class="p">,</span> <span class="n">query</span><span class="p">)</span>
    112. 

  112. 

  113.         <span class="c1"># only numbers and math operators are accepted</span>
    114. 

  114.         <span class="k">if</span> <span class="nb">any</span><span class="p">(</span><span class="nb">str</span><span class="o">.</span><span class="n">isalpha</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">query</span><span class="p">):</span>
    115. 

  115.             <span class="k">return</span> <span class="n">results</span>
    116. 

  116. 

  117.         <span class="c1"># in python, powers are calculated via **</span>
    118. 

  118.         <span class="n">query_py_formatted</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">&quot;^&quot;</span><span class="p">,</span> <span class="s2">&quot;**&quot;</span><span class="p">)</span>
    119. 

  119. 

  120.         <span class="c1"># Prevent the runtime from being longer than 50 ms</span>
    121. 

  121.         <span class="n">res</span> <span class="o">=</span> <span class="n">timeout_func</span><span class="p">(</span><span class="mf">0.05</span><span class="p">,</span> <span class="n">_eval_expr</span><span class="p">,</span> <span class="n">query_py_formatted</span><span class="p">)</span>
    122. 

  122.         <span class="k">if</span> <span class="n">res</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">res</span> <span class="o">==</span> <span class="s2">&quot;&quot;</span><span class="p">:</span>
    123. 

  123.             <span class="k">return</span> <span class="n">results</span>
    124. 

  124. 

  125.         <span class="n">res</span> <span class="o">=</span> <span class="n">babel</span><span class="o">.</span><span class="n">numbers</span><span class="o">.</span><span class="n">format_decimal</span><span class="p">(</span><span class="n">res</span><span class="p">,</span> <span class="n">locale</span><span class="o">=</span><span class="n">ui_locale</span><span class="p">)</span>
    126. 

  126.         <span class="n">results</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">results</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">Answer</span><span class="p">(</span><span class="n">answer</span><span class="o">=</span><span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">search</span><span class="o">.</span><span class="n">search_query</span><span class="o">.</span><span class="n">query</span><span class="si">}</span><span class="s2"> = </span><span class="si">{</span><span class="n">res</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">))</span>
    127. 

  127. 

  128.         <span class="k">return</span> <span class="n">results</span></div>
    129. 

  129. </div>
    130. 

  130. 

  131. 

  132. 

  133. <span class="n">operators</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">type</span><span class="p">,</span> <span class="n">typing</span><span class="o">.</span><span class="n">Callable</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
    134. 

  134.     <span class="n">ast</span><span class="o">.</span><span class="n">Add</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span>
    135. 

  135.     <span class="n">ast</span><span class="o">.</span><span class="n">Sub</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">sub</span><span class="p">,</span>
    136. 

  136.     <span class="n">ast</span><span class="o">.</span><span class="n">Mult</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">mul</span><span class="p">,</span>
    137. 

  137.     <span class="n">ast</span><span class="o">.</span><span class="n">Div</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">truediv</span><span class="p">,</span>
    138. 

  138.     <span class="n">ast</span><span class="o">.</span><span class="n">Pow</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">pow</span><span class="p">,</span>
    139. 

  139.     <span class="n">ast</span><span class="o">.</span><span class="n">BitXor</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">xor</span><span class="p">,</span>
    140. 

  140.     <span class="n">ast</span><span class="o">.</span><span class="n">USub</span><span class="p">:</span> <span class="n">operator</span><span class="o">.</span><span class="n">neg</span><span class="p">,</span>
    141. 

  141. <span class="p">}</span>
    142. 

  142. 

  143. <span class="c1"># with multiprocessing.get_context(&quot;fork&quot;) we are ready for Py3.14 (by emulating</span>
    144. 

  144. <span class="c1"># the old behavior &quot;fork&quot;) but it will not solve the core problem of fork, nor</span>
    145. 

  145. <span class="c1"># will it remove the deprecation warnings in py3.12 &amp; py3.13.  Issue is</span>
    146. 

  146. <span class="c1"># ddiscussed here: https://github.com/searxng/searxng/issues/4159</span>
    147. 

  147. <span class="n">mp_fork</span> <span class="o">=</span> <span class="n">multiprocessing</span><span class="o">.</span><span class="n">get_context</span><span class="p">(</span><span class="s2">&quot;fork&quot;</span><span class="p">)</span>
    148. 

  148. 

  149. 

  150. <span class="k">def</span><span class="w"> </span><span class="nf">_eval_expr</span><span class="p">(</span><span class="n">expr</span><span class="p">):</span>
    151. 

  151. <span class="w">    </span><span class="sd">&quot;&quot;&quot;</span>
    152. 

  152. <span class="sd">    &gt;&gt;&gt; _eval_expr(&#39;2^6&#39;)</span>
    153. 

  153. <span class="sd">    64</span>
    154. 

  154. <span class="sd">    &gt;&gt;&gt; _eval_expr(&#39;2**6&#39;)</span>
    155. 

  155. <span class="sd">    64</span>
    156. 

  156. <span class="sd">    &gt;&gt;&gt; _eval_expr(&#39;1 + 2*3**(4^5) / (6 + -7)&#39;)</span>
    157. 

  157. <span class="sd">    -5.0</span>
    158. 

  158. <span class="sd">    &quot;&quot;&quot;</span>
    159. 

  159.     <span class="k">try</span><span class="p">:</span>
    160. 

  160.         <span class="k">return</span> <span class="n">_eval</span><span class="p">(</span><span class="n">ast</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s1">&#39;eval&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">body</span><span class="p">)</span>
    161. 

  161.     <span class="k">except</span> <span class="ne">ZeroDivisionError</span><span class="p">:</span>
    162. 

  162.         <span class="c1"># This is undefined</span>
    163. 

  163.         <span class="k">return</span> <span class="s2">&quot;&quot;</span>
    164. 

  164. 

  165. 

  166. <span class="k">def</span><span class="w"> </span><span class="nf">_eval</span><span class="p">(</span><span class="n">node</span><span class="p">):</span>
    167. 

  167.     <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">ast</span><span class="o">.</span><span class="n">Constant</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">value</span><span class="p">,</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">)):</span>
    168. 

  168.         <span class="k">return</span> <span class="n">node</span><span class="o">.</span><span class="n">value</span>
    169. 

  169. 

  170.     <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">ast</span><span class="o">.</span><span class="n">BinOp</span><span class="p">):</span>
    171. 

  171.         <span class="k">return</span> <span class="n">operators</span><span class="p">[</span><span class="nb">type</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">op</span><span class="p">)](</span><span class="n">_eval</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">left</span><span class="p">),</span> <span class="n">_eval</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">right</span><span class="p">))</span>
    172. 

  172. 

  173.     <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">ast</span><span class="o">.</span><span class="n">UnaryOp</span><span class="p">):</span>
    174. 

  174.         <span class="k">return</span> <span class="n">operators</span><span class="p">[</span><span class="nb">type</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">op</span><span class="p">)](</span><span class="n">_eval</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">operand</span><span class="p">))</span>
    175. 

  175. 

  176.     <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
    177. 

  177. 

  178. 

  179. <span class="k">def</span><span class="w"> </span><span class="nf">handler</span><span class="p">(</span><span class="n">q</span><span class="p">:</span> <span class="n">multiprocessing</span><span class="o">.</span><span class="n">Queue</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>  <span class="c1"># pylint:disable=invalid-name</span>
    180. 

  180.     <span class="k">try</span><span class="p">:</span>
    181. 

  181.         <span class="n">q</span><span class="o">.</span><span class="n">put</span><span class="p">(</span><span class="n">func</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
    182. 

  182.     <span class="k">except</span><span class="p">:</span>
    183. 

  183.         <span class="n">q</span><span class="o">.</span><span class="n">put</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span>
    184. 

  184.         <span class="k">raise</span>
    185. 

  185. 

  186. 

  187. <span class="k">def</span><span class="w"> </span><span class="nf">timeout_func</span><span class="p">(</span><span class="n">timeout</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
    188. 

  188. 

  189.     <span class="n">que</span> <span class="o">=</span> <span class="n">mp_fork</span><span class="o">.</span><span class="n">Queue</span><span class="p">()</span>
    190. 

  190.     <span class="n">p</span> <span class="o">=</span> <span class="n">mp_fork</span><span class="o">.</span><span class="n">Process</span><span class="p">(</span><span class="n">target</span><span class="o">=</span><span class="n">handler</span><span class="p">,</span> <span class="n">args</span><span class="o">=</span><span class="p">(</span><span class="n">que</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">args</span><span class="p">),</span> <span class="n">kwargs</span><span class="o">=</span><span class="n">kwargs</span><span class="p">)</span>
    191. 

  191.     <span class="n">p</span><span class="o">.</span><span class="n">start</span><span class="p">()</span>
    192. 

  192.     <span class="n">p</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">timeout</span><span class="o">=</span><span class="n">timeout</span><span class="p">)</span>
    193. 

  193.     <span class="n">ret_val</span> <span class="o">=</span> <span class="kc">None</span>
    194. 

  194.     <span class="c1"># pylint: disable=used-before-assignment,undefined-variable</span>
    195. 

  195.     <span class="k">if</span> <span class="ow">not</span> <span class="n">p</span><span class="o">.</span><span class="n">is_alive</span><span class="p">():</span>
    196. 

  196.         <span class="n">ret_val</span> <span class="o">=</span> <span class="n">que</span><span class="o">.</span><span class="n">get</span><span class="p">()</span>
    197. 

  197.     <span class="k">else</span><span class="p">:</span>
    198. 

  198.         <span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;terminate function after timeout is exceeded&quot;</span><span class="p">)</span>  <span class="c1"># type: ignore</span>
    199. 

  199.         <span class="n">p</span><span class="o">.</span><span class="n">terminate</span><span class="p">()</span>
    200. 

  200.     <span class="n">p</span><span class="o">.</span><span class="n">join</span><span class="p">()</span>
    201. 

  201.     <span class="n">p</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
    202. 

  202.     <span class="k">return</span> <span class="n">ret_val</span>
    203. 

  203. </pre></div>
    204. 

  204. 

  205.             <div class="clearer"></div>
    206. 

  206.           </div>
    207. 

  207.         </div>
    208. 

  208.       </div>
    209. 

  209.   <span id="sidebar-top"></span>
    210. 

  210.       <div class="sphinxsidebar" role="navigation" aria-label="Main">
    211. 

  211.         <div class="sphinxsidebarwrapper">
    212. 

  212.   
    213. 

  213.     
    214. 

  214.             <p class="logo"><a href="../../../index.html">
    215. 

  215.               <img class="logo" src="../../../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/>
    216. 

  216.             </a></p>
    217. 

  217.   
    218. 

  218. 

  219. <h3><a href="../../../index.html">Table of Contents</a></h3>
    220. 

  220. <ul>
    221. 

  221. <li class="toctree-l1"><a class="reference internal" href="../../../user/index.html">User information</a></li>
    222. 

  222. <li class="toctree-l1"><a class="reference internal" href="../../../own-instance.html">Why use a private instance?</a></li>
    223. 

  223. <li class="toctree-l1"><a class="reference internal" href="../../../admin/index.html">Administrator documentation</a></li>
    224. 

  224. <li class="toctree-l1"><a class="reference internal" href="../../../dev/index.html">Developer documentation</a></li>
    225. 

  225. <li class="toctree-l1"><a class="reference internal" href="../../../utils/index.html">DevOps tooling box</a></li>
    226. 

  226. <li class="toctree-l1"><a class="reference internal" href="../../../src/index.html">Source-Code</a></li>
    227. 

  227. </ul>
    228. 

  228. 

  229.   <h3>Project Links</h3>
    230. 

  230.   <ul>
    231. 

  231.     <li><a href="https://github.com/searxng/searxng/tree/master">Source</a>
    232. 

  232.   
    233. 

  233.     <li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
    234. 

  234.   
    235. 

  235.     <li><a href="https://searx.space">Public instances</a>
    236. 

  236.   
    237. 

  237.     <li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a>
    238. 

  238.   </ul><h3>Navigation</h3>
    239. 

  239. <ul>
    240. 

  240.   <li><a href="../../../index.html">Overview</a>
    241. 

  241.     <ul>
    242. 

  242.       <li><a href="../../index.html">Module code</a>
    243. 

  243.         
    244. 

  244.           
    245. 

  245.           </ul>
    246. 

  246.       </li>
    247. 

  247.     </ul>
    248. 

  248.   </li>
    249. 

  249. </ul>
    250. 

  250. <search id="searchbox" style="display: none" role="search">
    251. 

  251.   <h3 id="searchlabel">Quick search</h3>
    252. 

  252.     <div class="searchformwrapper">
    253. 

  253.     <form class="search" action="../../../search.html" method="get">
    254. 

  254.       <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
    255. 

  255.       <input type="submit" value="Go" />
    256. 

  256.     </form>
    257. 

  257.     </div>
    258. 

  258. </search>
    259. 

  259. <script>document.getElementById('searchbox').style.display = "block"</script>
    260. 

  260.         </div>
    261. 

  261.       </div>
    262. 

  262.       <div class="clearer"></div>
    263. 

  263.     </div>
    264. 

  264.     <div class="footer" role="contentinfo">
    265. 

  265.     &#169; Copyright SearXNG team.
    266. 

  266.     </div>
    267. 

  267.   </body>
    268. 

  268. </html>
    269.
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