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| <div class="section" id="pyarrow-csv-readoptions"> |
| <h1>pyarrow.csv.ReadOptions<a class="headerlink" href="#pyarrow-csv-readoptions" title="Permalink to this headline">¶</a></h1> |
| <dl class="py class"> |
| <dt id="pyarrow.csv.ReadOptions"> |
| <em class="property">class </em><code class="sig-prename descclassname">pyarrow.csv.</code><code class="sig-name descname">ReadOptions</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">use_threads</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="o">*</span></em>, <em class="sig-param"><span class="n">block_size</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">skip_rows</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">column_names</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">autogenerate_column_names</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">encoding</span><span class="o">=</span><span class="default_value">'utf8'</span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.csv.ReadOptions" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">pyarrow.lib._Weakrefable</span></code></p> |
| <p>Options for reading CSV files.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>use_threads</strong> (<em>bool</em><em>, </em><em>optional</em><em> (</em><em>default True</em><em>)</em>) – Whether to use multiple threads to accelerate reading</p></li> |
| <li><p><strong>block_size</strong> (<em>int</em><em>, </em><em>optional</em>) – How much bytes to process at a time from the input stream. |
| This will determine multi-threading granularity as well as |
| the size of individual chunks in the Table.</p></li> |
| <li><p><strong>skip_rows</strong> (<em>int</em><em>, </em><em>optional</em><em> (</em><em>default 0</em><em>)</em>) – The number of rows to skip before the column names (if any) |
| and the CSV data.</p></li> |
| <li><p><strong>column_names</strong> (<em>list</em><em>, </em><em>optional</em>) – The column names of the target table. If empty, fall back on |
| <cite>autogenerate_column_names</cite>.</p></li> |
| <li><p><strong>autogenerate_column_names</strong> (<em>bool</em><em>, </em><em>optional</em><em> (</em><em>default False</em><em>)</em>) – Whether to autogenerate column names if <cite>column_names</cite> is empty. |
| If true, column names will be of the form “f0”, “f1”… |
| If false, column names will be read from the first CSV row |
| after <cite>skip_rows</cite>.</p></li> |
| <li><p><strong>encoding</strong> (<em>str</em><em>, </em><em>optional</em><em> (</em><em>default 'utf8'</em><em>)</em>) – The character encoding of the CSV data. Columns that cannot |
| decode using this encoding can still be read as Binary.</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <dl class="py method"> |
| <dt id="pyarrow.csv.ReadOptions.__init__"> |
| <code class="sig-name descname">__init__</code><span class="sig-paren">(</span><em class="sig-param"><span class="o">*</span><span class="n">args</span></em>, <em class="sig-param"><span class="o">**</span><span class="n">kwargs</span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.csv.ReadOptions.__init__" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Initialize self. See help(type(self)) for accurate signature.</p> |
| </dd></dl> |
| |
| <p class="rubric">Methods</p> |
| <table class="longtable docutils align-default"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.__init__" title="pyarrow.csv.ReadOptions.__init__"><code class="xref py py-obj docutils literal notranslate"><span class="pre">__init__</span></code></a>(*args, **kwargs)</p></td> |
| <td><p>Initialize self.</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <p class="rubric">Attributes</p> |
| <table class="longtable docutils align-default"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.autogenerate_column_names" title="pyarrow.csv.ReadOptions.autogenerate_column_names"><code class="xref py py-obj docutils literal notranslate"><span class="pre">autogenerate_column_names</span></code></a></p></td> |
| <td><p>Whether to autogenerate column names if <cite>column_names</cite> is empty.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.block_size" title="pyarrow.csv.ReadOptions.block_size"><code class="xref py py-obj docutils literal notranslate"><span class="pre">block_size</span></code></a></p></td> |
| <td><p>How much bytes to process at a time from the input stream.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.column_names" title="pyarrow.csv.ReadOptions.column_names"><code class="xref py py-obj docutils literal notranslate"><span class="pre">column_names</span></code></a></p></td> |
| <td><p>The column names of the target table.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.encoding" title="pyarrow.csv.ReadOptions.encoding"><code class="xref py py-obj docutils literal notranslate"><span class="pre">encoding</span></code></a></p></td> |
| <td><p>object</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.skip_rows" title="pyarrow.csv.ReadOptions.skip_rows"><code class="xref py py-obj docutils literal notranslate"><span class="pre">skip_rows</span></code></a></p></td> |
| <td><p>The number of rows to skip before the column names (if any) and the CSV data.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.csv.ReadOptions.use_threads" title="pyarrow.csv.ReadOptions.use_threads"><code class="xref py py-obj docutils literal notranslate"><span class="pre">use_threads</span></code></a></p></td> |
| <td><p>Whether to use multiple threads to accelerate reading.</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.autogenerate_column_names"> |
| <code class="sig-name descname">autogenerate_column_names</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.autogenerate_column_names" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Whether to autogenerate column names if <cite>column_names</cite> is empty. |
| If true, column names will be of the form “f0”, “f1”… |
| If false, column names will be read from the first CSV row |
| after <cite>skip_rows</cite>.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.block_size"> |
| <code class="sig-name descname">block_size</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.block_size" title="Permalink to this definition">¶</a></dt> |
| <dd><p>How much bytes to process at a time from the input stream. |
| This will determine multi-threading granularity as well as |
| the size of individual chunks in the Table.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.column_names"> |
| <code class="sig-name descname">column_names</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.column_names" title="Permalink to this definition">¶</a></dt> |
| <dd><p>The column names of the target table. If empty, fall back on |
| <cite>autogenerate_column_names</cite>.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.encoding"> |
| <code class="sig-name descname">encoding</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.encoding" title="Permalink to this definition">¶</a></dt> |
| <dd><p>object</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Type</dt> |
| <dd class="field-odd"><p>encoding</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.skip_rows"> |
| <code class="sig-name descname">skip_rows</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.skip_rows" title="Permalink to this definition">¶</a></dt> |
| <dd><p>The number of rows to skip before the column names (if any) |
| and the CSV data.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt id="pyarrow.csv.ReadOptions.use_threads"> |
| <code class="sig-name descname">use_threads</code><a class="headerlink" href="#pyarrow.csv.ReadOptions.use_threads" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Whether to use multiple threads to accelerate reading.</p> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| </div> |
| |
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