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  <div class="section" id="module-stdnum.ec.ruc">
<span id="stdnum-ec-ruc"></span><h1>stdnum.ec.ruc<a class="headerlink" href="#module-stdnum.ec.ruc" title="Permalink to this headline"></a></h1>
<p>RUC (Registro Único de Contribuyentes, Ecuadorian company tax number).</p>
<p>The RUC is a tax identification number for legal entities. It has 13 digits
where the third digit is a number denoting the type of entity.</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">validate</span><span class="p">(</span><span class="s1">&#39;1792060346-001&#39;</span><span class="p">)</span>
<span class="go">&#39;1792060346001&#39;</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">validate</span><span class="p">(</span><span class="s1">&#39;1763154690001&#39;</span><span class="p">)</span>  <span class="c1"># invalid check digit</span>
<span class="gt">Traceback (most recent call last):</span>
    <span class="o">...</span>
<span class="gr">InvalidChecksum</span>: <span class="n">...</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">validate</span><span class="p">(</span><span class="s1">&#39;179206034601&#39;</span><span class="p">)</span>  <span class="c1"># too short</span>
<span class="gt">Traceback (most recent call last):</span>
    <span class="o">...</span>
<span class="gr">InvalidLength</span>: <span class="n">...</span>
</pre></div>
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<dl class="function">
<dt id="stdnum.ec.ruc.compact">
<code class="descclassname">stdnum.ec.ruc.</code><code class="descname">compact</code><span class="sig-paren">(</span><em>number</em><span class="sig-paren">)</span><a class="headerlink" href="#stdnum.ec.ruc.compact" title="Permalink to this definition"></a></dt>
<dd><p>Convert the number to the minimal representation. This strips the
number of any valid separators and removes surrounding whitespace.</p>
</dd></dl>

<dl class="function">
<dt id="stdnum.ec.ruc.validate">
<code class="descclassname">stdnum.ec.ruc.</code><code class="descname">validate</code><span class="sig-paren">(</span><em>number</em><span class="sig-paren">)</span><a class="headerlink" href="#stdnum.ec.ruc.validate" title="Permalink to this definition"></a></dt>
<dd><p>Check if the number provided is a valid RUC number. This checks the
length, formatting, check digit and check sum.</p>
</dd></dl>

<dl class="function">
<dt id="stdnum.ec.ruc.is_valid">
<code class="descclassname">stdnum.ec.ruc.</code><code class="descname">is_valid</code><span class="sig-paren">(</span><em>number</em><span class="sig-paren">)</span><a class="headerlink" href="#stdnum.ec.ruc.is_valid" title="Permalink to this definition"></a></dt>
<dd><p>Check if the number provided is a valid RUC number. This checks the
length, formatting and check digit.</p>
</dd></dl>

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