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<h1>conversions</h1>
<div class="doc doc-object doc-module">
<a id="pyiceberg.conversions"></a>
<div class="doc doc-contents first">
<p>Utility module for various conversions around PrimitiveType implementations.</p>
<details class="this-module-enables" open>
<summary>This module enables</summary>
<ul>
<li>Converting partition strings to built-in python objects.</li>
<li>Converting a value to a byte buffer.</li>
<li>Converting a byte buffer to a value.</li>
<li>Converting a json-single field serialized field</li>
</ul>
</details>
<details class="note" open>
<summary>Note</summary>
<p>Conversion logic varies based on the PrimitiveType implementation. Therefore conversion functions
are defined here as generic functions using the @singledispatch decorator. For each PrimitiveType
implementation, a concrete function is registered for each generic conversion function. For PrimitiveType
implementations that share the same conversion logic, registrations can be stacked.</p>
</details>
<div class="doc doc-children">
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions._" class="doc doc-heading">
<code class="highlight language-python"><span class="n">_</span><span class="p">(</span><span class="n">_</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions._" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert JSON string into Python UUID.</p>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-589">589</a></span>
<span class="normal"><a href="#__codelineno-0-590">590</a></span>
<span class="normal"><a href="#__codelineno-0-591">591</a></span>
<span class="normal"><a href="#__codelineno-0-592">592</a></span>
<span class="normal"><a href="#__codelineno-0-593">593</a></span>
<span class="normal"><a href="#__codelineno-0-594">594</a></span>
<span class="normal"><a href="#__codelineno-0-595">595</a></span>
<span class="normal"><a href="#__codelineno-0-596">596</a></span>
<span class="normal"><a href="#__codelineno-0-597">597</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-589" name="__codelineno-0-589"></a><span class="nd">@from_json</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="n">UUIDType</span><span class="p">)</span>
<a id="__codelineno-0-590" name="__codelineno-0-590"></a><span class="k">def</span><span class="w"> </span><span class="nf">_</span><span class="p">(</span><span class="n">_</span><span class="p">:</span> <span class="n">UUIDType</span><span class="p">,</span> <span class="n">val</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">,</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">:</span>
<a id="__codelineno-0-591" name="__codelineno-0-591"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert JSON string into Python UUID.&quot;&quot;&quot;</span>
<a id="__codelineno-0-592" name="__codelineno-0-592"></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<a id="__codelineno-0-593" name="__codelineno-0-593"></a> <span class="k">return</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<a id="__codelineno-0-594" name="__codelineno-0-594"></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">):</span>
<a id="__codelineno-0-595" name="__codelineno-0-595"></a> <span class="k">return</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">(</span><span class="nb">bytes</span><span class="o">=</span><span class="n">val</span><span class="p">)</span>
<a id="__codelineno-0-596" name="__codelineno-0-596"></a> <span class="k">else</span><span class="p">:</span>
<a id="__codelineno-0-597" name="__codelineno-0-597"></a> <span class="k">return</span> <span class="n">val</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.from_bytes" class="doc doc-heading">
<code class="highlight language-python"><span class="n">from_bytes</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.from_bytes" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert bytes to a built-in python value.</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>primitive_type</code>
</td>
<td>
<code><a class="autorefs autorefs-internal" title="PrimitiveType (pyiceberg.types.PrimitiveType)" href="../types/#pyiceberg.types.PrimitiveType">PrimitiveType</a></code>
</td>
<td>
<div class="doc-md-description">
<p>An implementation of the PrimitiveType base class.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code>b</code>
</td>
<td>
<code><span title="bytes">bytes</span></code>
</td>
<td>
<div class="doc-md-description">
<p>The bytes to convert.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-309">309</a></span>
<span class="normal"><a href="#__codelineno-0-310">310</a></span>
<span class="normal"><a href="#__codelineno-0-311">311</a></span>
<span class="normal"><a href="#__codelineno-0-312">312</a></span>
<span class="normal"><a href="#__codelineno-0-313">313</a></span>
<span class="normal"><a href="#__codelineno-0-314">314</a></span>
<span class="normal"><a href="#__codelineno-0-315">315</a></span>
<span class="normal"><a href="#__codelineno-0-316">316</a></span>
<span class="normal"><a href="#__codelineno-0-317">317</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-309" name="__codelineno-0-309"></a><span class="nd">@singledispatch</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-310" name="__codelineno-0-310"></a><span class="k">def</span><span class="w"> </span><span class="nf">from_bytes</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="nb">bytes</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">L</span><span class="p">:</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-311" name="__codelineno-0-311"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert bytes to a built-in python value.</span>
<a id="__codelineno-0-312" name="__codelineno-0-312"></a>
<a id="__codelineno-0-313" name="__codelineno-0-313"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-314" name="__codelineno-0-314"></a><span class="sd"> primitive_type (PrimitiveType): An implementation of the PrimitiveType base class.</span>
<a id="__codelineno-0-315" name="__codelineno-0-315"></a><span class="sd"> b (bytes): The bytes to convert.</span>
<a id="__codelineno-0-316" name="__codelineno-0-316"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-317" name="__codelineno-0-317"></a> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot deserialize bytes, type </span><span class="si">{</span><span class="n">primitive_type</span><span class="si">}</span><span class="s2"> not supported: </span><span class="si">{</span><span class="n">b</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.from_json" class="doc doc-heading">
<code class="highlight language-python"><span class="n">from_json</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.from_json" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert JSON value types into built-in python values.</p>
<p>https://iceberg.apache.org/spec/#json-single-value-serialization</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>primitive_type</code>
</td>
<td>
<code><a class="autorefs autorefs-internal" title="PrimitiveType (pyiceberg.types.PrimitiveType)" href="../types/#pyiceberg.types.PrimitiveType">PrimitiveType</a></code>
</td>
<td>
<div class="doc-md-description">
<p>An implementation of the PrimitiveType base class.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code>val</code>
</td>
<td>
<code><span title="typing.Any">Any</span></code>
</td>
<td>
<div class="doc-md-description">
<p>The arbitrary JSON value to convert into the right form</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-479">479</a></span>
<span class="normal"><a href="#__codelineno-0-480">480</a></span>
<span class="normal"><a href="#__codelineno-0-481">481</a></span>
<span class="normal"><a href="#__codelineno-0-482">482</a></span>
<span class="normal"><a href="#__codelineno-0-483">483</a></span>
<span class="normal"><a href="#__codelineno-0-484">484</a></span>
<span class="normal"><a href="#__codelineno-0-485">485</a></span>
<span class="normal"><a href="#__codelineno-0-486">486</a></span>
<span class="normal"><a href="#__codelineno-0-487">487</a></span>
<span class="normal"><a href="#__codelineno-0-488">488</a></span>
<span class="normal"><a href="#__codelineno-0-489">489</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-479" name="__codelineno-0-479"></a><span class="nd">@singledispatch</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-480" name="__codelineno-0-480"></a><span class="k">def</span><span class="w"> </span><span class="nf">from_json</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">val</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">L</span><span class="p">:</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-481" name="__codelineno-0-481"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert JSON value types into built-in python values.</span>
<a id="__codelineno-0-482" name="__codelineno-0-482"></a>
<a id="__codelineno-0-483" name="__codelineno-0-483"></a><span class="sd"> https://iceberg.apache.org/spec/#json-single-value-serialization</span>
<a id="__codelineno-0-484" name="__codelineno-0-484"></a>
<a id="__codelineno-0-485" name="__codelineno-0-485"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-486" name="__codelineno-0-486"></a><span class="sd"> primitive_type (PrimitiveType): An implementation of the PrimitiveType base class.</span>
<a id="__codelineno-0-487" name="__codelineno-0-487"></a><span class="sd"> val (Any): The arbitrary JSON value to convert into the right form</span>
<a id="__codelineno-0-488" name="__codelineno-0-488"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-489" name="__codelineno-0-489"></a> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot deserialize bytes, type </span><span class="si">{</span><span class="n">primitive_type</span><span class="si">}</span><span class="s2"> not supported: </span><span class="si">{</span><span class="nb">str</span><span class="p">(</span><span class="n">val</span><span class="p">)</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.handle_none" class="doc doc-heading">
<code class="highlight language-python"><span class="n">handle_none</span><span class="p">(</span><span class="n">func</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.handle_none" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Handle cases where partition values are <code>None</code> or "<strong>HIVE_DEFAULT_PARTITION</strong>".</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>func</code>
</td>
<td>
<code><span title="typing.Callable">Callable</span></code>
</td>
<td>
<div class="doc-md-description">
<p>A function registered to the singledispatch function <code>partition_to_py</code>.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-94"> 94</a></span>
<span class="normal"><a href="#__codelineno-0-95"> 95</a></span>
<span class="normal"><a href="#__codelineno-0-96"> 96</a></span>
<span class="normal"><a href="#__codelineno-0-97"> 97</a></span>
<span class="normal"><a href="#__codelineno-0-98"> 98</a></span>
<span class="normal"><a href="#__codelineno-0-99"> 99</a></span>
<span class="normal"><a href="#__codelineno-0-100">100</a></span>
<span class="normal"><a href="#__codelineno-0-101">101</a></span>
<span class="normal"><a href="#__codelineno-0-102">102</a></span>
<span class="normal"><a href="#__codelineno-0-103">103</a></span>
<span class="normal"><a href="#__codelineno-0-104">104</a></span>
<span class="normal"><a href="#__codelineno-0-105">105</a></span>
<span class="normal"><a href="#__codelineno-0-106">106</a></span>
<span class="normal"><a href="#__codelineno-0-107">107</a></span>
<span class="normal"><a href="#__codelineno-0-108">108</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-94" name="__codelineno-0-94"></a><span class="k">def</span><span class="w"> </span><span class="nf">handle_none</span><span class="p">(</span><span class="n">func</span><span class="p">:</span> <span class="n">Callable</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Callable</span><span class="p">:</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-95" name="__codelineno-0-95"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Handle cases where partition values are `None` or &quot;__HIVE_DEFAULT_PARTITION__&quot;.</span>
<a id="__codelineno-0-96" name="__codelineno-0-96"></a>
<a id="__codelineno-0-97" name="__codelineno-0-97"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-98" name="__codelineno-0-98"></a><span class="sd"> func (Callable): A function registered to the singledispatch function `partition_to_py`.</span>
<a id="__codelineno-0-99" name="__codelineno-0-99"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-100" name="__codelineno-0-100"></a>
<a id="__codelineno-0-101" name="__codelineno-0-101"></a> <span class="k">def</span><span class="w"> </span><span class="nf">wrapper</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">value_str</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Any</span><span class="p">:</span>
<a id="__codelineno-0-102" name="__codelineno-0-102"></a> <span class="k">if</span> <span class="n">value_str</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<a id="__codelineno-0-103" name="__codelineno-0-103"></a> <span class="k">return</span> <span class="kc">None</span>
<a id="__codelineno-0-104" name="__codelineno-0-104"></a> <span class="k">elif</span> <span class="n">value_str</span> <span class="o">==</span> <span class="s2">&quot;__HIVE_DEFAULT_PARTITION__&quot;</span><span class="p">:</span>
<a id="__codelineno-0-105" name="__codelineno-0-105"></a> <span class="k">return</span> <span class="kc">None</span>
<a id="__codelineno-0-106" name="__codelineno-0-106"></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">value_str</span><span class="p">)</span>
<a id="__codelineno-0-107" name="__codelineno-0-107"></a>
<a id="__codelineno-0-108" name="__codelineno-0-108"></a> <span class="k">return</span> <span class="n">wrapper</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.partition_to_py" class="doc doc-heading">
<code class="highlight language-python"><span class="n">partition_to_py</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">value_str</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.partition_to_py" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert a partition string to a python built-in.</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>primitive_type</code>
</td>
<td>
<code><a class="autorefs autorefs-internal" title="PrimitiveType (pyiceberg.types.PrimitiveType)" href="../types/#pyiceberg.types.PrimitiveType">PrimitiveType</a></code>
</td>
<td>
<div class="doc-md-description">
<p>An implementation of the PrimitiveType base class.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code>value_str</code>
</td>
<td>
<code><span title="str">str</span></code>
</td>
<td>
<div class="doc-md-description">
<p>A string representation of a partition value.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-111">111</a></span>
<span class="normal"><a href="#__codelineno-0-112">112</a></span>
<span class="normal"><a href="#__codelineno-0-113">113</a></span>
<span class="normal"><a href="#__codelineno-0-114">114</a></span>
<span class="normal"><a href="#__codelineno-0-115">115</a></span>
<span class="normal"><a href="#__codelineno-0-116">116</a></span>
<span class="normal"><a href="#__codelineno-0-117">117</a></span>
<span class="normal"><a href="#__codelineno-0-118">118</a></span>
<span class="normal"><a href="#__codelineno-0-119">119</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-111" name="__codelineno-0-111"></a><span class="nd">@singledispatch</span>
<a id="__codelineno-0-112" name="__codelineno-0-112"></a><span class="k">def</span><span class="w"> </span><span class="nf">partition_to_py</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">value_str</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Union</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">,</span> <span class="n">Decimal</span><span class="p">]:</span>
<a id="__codelineno-0-113" name="__codelineno-0-113"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert a partition string to a python built-in.</span>
<a id="__codelineno-0-114" name="__codelineno-0-114"></a>
<a id="__codelineno-0-115" name="__codelineno-0-115"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-116" name="__codelineno-0-116"></a><span class="sd"> primitive_type (PrimitiveType): An implementation of the PrimitiveType base class.</span>
<a id="__codelineno-0-117" name="__codelineno-0-117"></a><span class="sd"> value_str (str): A string representation of a partition value.</span>
<a id="__codelineno-0-118" name="__codelineno-0-118"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-119" name="__codelineno-0-119"></a> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot convert &#39;</span><span class="si">{</span><span class="n">value_str</span><span class="si">}</span><span class="s2">&#39; to unsupported type: </span><span class="si">{</span><span class="n">primitive_type</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.to_bytes" class="doc doc-heading">
<code class="highlight language-python"><span class="n">to_bytes</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">_</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.to_bytes" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert a built-in python value to bytes.</p>
<p>This conversion follows the serialization scheme for storing single values as individual binary values defined in the Iceberg specification that
can be found at https://iceberg.apache.org/spec/#appendix-d-single-value-serialization</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>primitive_type</code>
</td>
<td>
<code><a class="autorefs autorefs-internal" title="PrimitiveType (pyiceberg.types.PrimitiveType)" href="../types/#pyiceberg.types.PrimitiveType">PrimitiveType</a></code>
</td>
<td>
<div class="doc-md-description">
<p>An implementation of the PrimitiveType base class.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code>_</code>
</td>
<td>
<code><span title="typing.Union">Union</span>[<span title="bool">bool</span>, <span title="bytes">bytes</span>, <span title="decimal.Decimal">Decimal</span>, <span title="datetime.date">date</span>, <span title="datetime.datetime">datetime</span>, <span title="float">float</span>, <span title="int">int</span>, <span title="str">str</span>, <span title="datetime.time">time</span>, <span title="uuid.UUID">UUID</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>The value to convert to bytes (The type of this value depends on which dispatched function is
used--check dispatchable functions for type hints).</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-187">187</a></span>
<span class="normal"><a href="#__codelineno-0-188">188</a></span>
<span class="normal"><a href="#__codelineno-0-189">189</a></span>
<span class="normal"><a href="#__codelineno-0-190">190</a></span>
<span class="normal"><a href="#__codelineno-0-191">191</a></span>
<span class="normal"><a href="#__codelineno-0-192">192</a></span>
<span class="normal"><a href="#__codelineno-0-193">193</a></span>
<span class="normal"><a href="#__codelineno-0-194">194</a></span>
<span class="normal"><a href="#__codelineno-0-195">195</a></span>
<span class="normal"><a href="#__codelineno-0-196">196</a></span>
<span class="normal"><a href="#__codelineno-0-197">197</a></span>
<span class="normal"><a href="#__codelineno-0-198">198</a></span>
<span class="normal"><a href="#__codelineno-0-199">199</a></span>
<span class="normal"><a href="#__codelineno-0-200">200</a></span>
<span class="normal"><a href="#__codelineno-0-201">201</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-187" name="__codelineno-0-187"></a><span class="nd">@singledispatch</span>
<a id="__codelineno-0-188" name="__codelineno-0-188"></a><span class="k">def</span><span class="w"> </span><span class="nf">to_bytes</span><span class="p">(</span>
<a id="__codelineno-0-189" name="__codelineno-0-189"></a> <span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">_</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">,</span> <span class="n">Decimal</span><span class="p">,</span> <span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">time</span><span class="p">,</span> <span class="n">uuid</span><span class="o">.</span><span class="n">UUID</span><span class="p">]</span>
<a id="__codelineno-0-190" name="__codelineno-0-190"></a><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">bytes</span><span class="p">:</span>
<a id="__codelineno-0-191" name="__codelineno-0-191"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert a built-in python value to bytes.</span>
<a id="__codelineno-0-192" name="__codelineno-0-192"></a>
<a id="__codelineno-0-193" name="__codelineno-0-193"></a><span class="sd"> This conversion follows the serialization scheme for storing single values as individual binary values defined in the Iceberg specification that</span>
<a id="__codelineno-0-194" name="__codelineno-0-194"></a><span class="sd"> can be found at https://iceberg.apache.org/spec/#appendix-d-single-value-serialization</span>
<a id="__codelineno-0-195" name="__codelineno-0-195"></a>
<a id="__codelineno-0-196" name="__codelineno-0-196"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-197" name="__codelineno-0-197"></a><span class="sd"> primitive_type (PrimitiveType): An implementation of the PrimitiveType base class.</span>
<a id="__codelineno-0-198" name="__codelineno-0-198"></a><span class="sd"> _: The value to convert to bytes (The type of this value depends on which dispatched function is</span>
<a id="__codelineno-0-199" name="__codelineno-0-199"></a><span class="sd"> used--check dispatchable functions for type hints).</span>
<a id="__codelineno-0-200" name="__codelineno-0-200"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-201" name="__codelineno-0-201"></a> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;scale does not match </span><span class="si">{</span><span class="n">primitive_type</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
<div class="doc doc-object doc-function">
<h2 id="pyiceberg.conversions.to_json" class="doc doc-heading">
<code class="highlight language-python"><span class="n">to_json</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span></code>
<a href="#pyiceberg.conversions.to_json" class="headerlink" title="Permanent link">&para;</a></h2>
<div class="doc doc-contents ">
<p>Convert built-in python values into JSON value types.</p>
<p>https://iceberg.apache.org/spec/#json-single-value-serialization</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>primitive_type</code>
</td>
<td>
<code><a class="autorefs autorefs-internal" title="PrimitiveType (pyiceberg.types.PrimitiveType)" href="../types/#pyiceberg.types.PrimitiveType">PrimitiveType</a></code>
</td>
<td>
<div class="doc-md-description">
<p>An implementation of the PrimitiveType base class.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code>val</code>
</td>
<td>
<code><span title="typing.Any">Any</span></code>
</td>
<td>
<div class="doc-md-description">
<p>The arbitrary built-in value to convert into the right form</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<details class="quote">
<summary>Source code in <code>pyiceberg/conversions.py</code></summary>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"><a href="#__codelineno-0-374">374</a></span>
<span class="normal"><a href="#__codelineno-0-375">375</a></span>
<span class="normal"><a href="#__codelineno-0-376">376</a></span>
<span class="normal"><a href="#__codelineno-0-377">377</a></span>
<span class="normal"><a href="#__codelineno-0-378">378</a></span>
<span class="normal"><a href="#__codelineno-0-379">379</a></span>
<span class="normal"><a href="#__codelineno-0-380">380</a></span>
<span class="normal"><a href="#__codelineno-0-381">381</a></span>
<span class="normal"><a href="#__codelineno-0-382">382</a></span>
<span class="normal"><a href="#__codelineno-0-383">383</a></span>
<span class="normal"><a href="#__codelineno-0-384">384</a></span></pre></div></td><td class="code"><div><pre><span></span><code><a id="__codelineno-0-374" name="__codelineno-0-374"></a><span class="nd">@singledispatch</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-375" name="__codelineno-0-375"></a><span class="k">def</span><span class="w"> </span><span class="nf">to_json</span><span class="p">(</span><span class="n">primitive_type</span><span class="p">:</span> <span class="n">PrimitiveType</span><span class="p">,</span> <span class="n">val</span><span class="p">:</span> <span class="n">Any</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">L</span><span class="p">:</span> <span class="c1"># type: ignore</span>
<a id="__codelineno-0-376" name="__codelineno-0-376"></a><span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert built-in python values into JSON value types.</span>
<a id="__codelineno-0-377" name="__codelineno-0-377"></a>
<a id="__codelineno-0-378" name="__codelineno-0-378"></a><span class="sd"> https://iceberg.apache.org/spec/#json-single-value-serialization</span>
<a id="__codelineno-0-379" name="__codelineno-0-379"></a>
<a id="__codelineno-0-380" name="__codelineno-0-380"></a><span class="sd"> Args:</span>
<a id="__codelineno-0-381" name="__codelineno-0-381"></a><span class="sd"> primitive_type (PrimitiveType): An implementation of the PrimitiveType base class.</span>
<a id="__codelineno-0-382" name="__codelineno-0-382"></a><span class="sd"> val (Any): The arbitrary built-in value to convert into the right form</span>
<a id="__codelineno-0-383" name="__codelineno-0-383"></a><span class="sd"> &quot;&quot;&quot;</span>
<a id="__codelineno-0-384" name="__codelineno-0-384"></a> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Cannot deserialize bytes, type </span><span class="si">{</span><span class="n">primitive_type</span><span class="si">}</span><span class="s2"> not supported: </span><span class="si">{</span><span class="n">val</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
</code></pre></div></td></tr></table></div>
</details>
</div>
</div>
</div>
</div>
</div>
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