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<section id="numpy-char-asarray">
<h1>numpy.char.asarray<a class="headerlink" href="#numpy-char-asarray" title="Link to this heading">#</a></h1>
<dl class="py function">
<dt class="sig sig-object py" id="numpy.char.asarray">
<span class="sig-prename descclassname"><span class="pre">char.</span></span><span class="sig-name descname"><span class="pre">asarray</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">obj</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">itemsize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">unicode</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">order</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference external" href="https://github.com/numpy/numpy/blob/main/numpy/_core/defchararray.py#L1356-L1414"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#numpy.char.asarray" title="Link to this definition">#</a></dt>
<dd><p>Convert the input to a <a class="reference internal" href="numpy.char.chararray.html#numpy.char.chararray" title="numpy.char.chararray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">chararray</span></code></a>, copying the data only if
necessary.</p>
<p>Versus a NumPy array of dtype <a class="reference internal" href="../arrays.scalars.html#numpy.bytes_" title="numpy.bytes_"><code class="xref py py-obj docutils literal notranslate"><span class="pre">bytes_</span></code></a> or <a class="reference internal" href="../arrays.scalars.html#numpy.str_" title="numpy.str_"><code class="xref py py-obj docutils literal notranslate"><span class="pre">str_</span></code></a>, this
class adds the following functionality:</p>
<ol class="arabic simple">
<li><p>values automatically have whitespace removed from the end
when indexed</p></li>
<li><p>comparison operators automatically remove whitespace from the
end when comparing values</p></li>
<li><p>vectorized string operations are provided as methods
(e.g. <a class="reference internal" href="numpy.char.chararray.endswith.html#numpy.char.chararray.endswith" title="numpy.char.chararray.endswith"><code class="xref py py-obj docutils literal notranslate"><span class="pre">chararray.endswith</span></code></a>)
and infix operators (e.g. <code class="docutils literal notranslate"><span class="pre">+</span></code>, <code class="docutils literal notranslate"><span class="pre">*</span></code>, <code class="docutils literal notranslate"><span class="pre">%</span></code>)</p></li>
</ol>
<dl class="field-list">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><dl>
<dt><strong>obj</strong><span class="classifier">array of str or unicode-like</span></dt><dd></dd>
<dt><strong>itemsize</strong><span class="classifier">int, optional</span></dt><dd><p><em class="xref py py-obj">itemsize</em> is the number of characters per scalar in the
resulting array. If <em class="xref py py-obj">itemsize</em> is None, and <em class="xref py py-obj">obj</em> is an
object array or a Python list, the <em class="xref py py-obj">itemsize</em> will be
automatically determined. If <em class="xref py py-obj">itemsize</em> is provided and <em class="xref py py-obj">obj</em>
is of type str or unicode, then the <em class="xref py py-obj">obj</em> string will be
chunked into <em class="xref py py-obj">itemsize</em> pieces.</p>
</dd>
<dt><strong>unicode</strong><span class="classifier">bool, optional</span></dt><dd><p>When true, the resulting <a class="reference internal" href="numpy.char.chararray.html#numpy.char.chararray" title="numpy.char.chararray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">chararray</span></code></a> can contain Unicode
characters, when false only 8-bit characters. If unicode is
None and <em class="xref py py-obj">obj</em> is one of the following:</p>
<ul class="simple">
<li><p>a <a class="reference internal" href="numpy.char.chararray.html#numpy.char.chararray" title="numpy.char.chararray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">chararray</span></code></a>,</p></li>
<li><p>an ndarray of type <a class="reference internal" href="../arrays.scalars.html#numpy.str_" title="numpy.str_"><code class="xref py py-obj docutils literal notranslate"><span class="pre">str_</span></code></a> or <em class="xref py py-obj">unicode_</em></p></li>
<li><p>a Python str or unicode object,</p></li>
</ul>
<p>then the unicode setting of the output array will be
automatically determined.</p>
</dd>
<dt><strong>order</strong><span class="classifier">{‘C’, ‘F’}, optional</span></dt><dd><p>Specify the order of the array. If order is ‘C’ (default), then the
array will be in C-contiguous order (last-index varies the
fastest). If order is ‘F’, then the returned array
will be in Fortran-contiguous order (first-index varies the
fastest).</p>
</dd>
</dl>
</dd>
</dl>
<p class="rubric">Examples</p>
<div class="try_examples_outer_container docutils container" id="9b41ed7c-0958-4572-8d8c-736ae128fbf2">
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<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span><span class="w"> </span><span class="nn">numpy</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">np</span>
<span class="gp">>>> </span><span class="n">np</span><span class="o">.</span><span class="n">char</span><span class="o">.</span><span class="n">asarray</span><span class="p">([</span><span class="s1">'hello'</span><span class="p">,</span> <span class="s1">'world'</span><span class="p">])</span>
<span class="go">chararray(['hello', 'world'], dtype='<U5')</span>
</pre></div>
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