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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="PyO3’s prelude."><title>pyo3::prelude - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-46132b98.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="pyo3" data-themes="" data-resource-suffix="" data-rustdoc-version="1.85.1 (4eb161250 2025-03-15)" data-channel="1.85.1" data-search-js="search-75f5ac3e.js" data-settings-js="settings-0f613d39.js" ><script src="../../static.files/storage-59e33391.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../pyo3/index.html">pyo3</a><span class="version">0.24.1</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module prelude</a></h2><h3><a href="#reexports">Module Items</a></h3><ul class="block"><li><a href="#reexports" title="Re-exports">Re-exports</a></li><li><a href="#macros" title="Macros">Macros</a></li><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#traits" title="Traits">Traits</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li><li><a href="#attributes" title="Attribute Macros">Attribute Macros</a></li><li><a href="#derives" title="Derive Macros">Derive Macros</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate pyo3</a></h2></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><span class="rustdoc-breadcrumbs"><a href="../index.html">pyo3</a></span><h1>Module <span>prelude</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/pyo3/prelude.rs.html#1-52">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>PyO3’s prelude.</p>
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<p>The purpose of this module is to alleviate imports of many commonly used items of the PyO3 crate
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by adding a glob import to the top of pyo3 heavy modules:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>pyo3::prelude::<span class="kw-2">*</span>;</code></pre></div>
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</div></details><h2 id="reexports" class="section-header">Re-exports<a href="#reexports" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name" id="reexport.FromPyObject"><code>pub use crate::conversion::<a class="trait" href="../conversion/trait.FromPyObject.html" title="trait pyo3::conversion::FromPyObject">FromPyObject</a>;</code></div></li><li><div class="item-name" id="reexport.IntoPyObject"><code>pub use crate::conversion::<a class="trait" href="../conversion/trait.IntoPyObject.html" title="trait pyo3::conversion::IntoPyObject">IntoPyObject</a>;</code></div></li><li><div class="item-name" id="reexport.IntoPy"><code>pub use crate::conversion::<a class="trait" href="../conversion/trait.IntoPy.html" title="trait pyo3::conversion::IntoPy">IntoPy</a>;</code></div><div class="desc docblock-short"><wbr><span class="stab deprecated" title="">Deprecated</span></div></li><li><div class="item-name" id="reexport.ToPyObject"><code>pub use crate::conversion::<a class="trait" href="../conversion/trait.ToPyObject.html" title="trait pyo3::conversion::ToPyObject">ToPyObject</a>;</code></div><div class="desc docblock-short"><wbr><span class="stab deprecated" title="">Deprecated</span></div></li><li><div class="item-name" id="reexport.Python"><code>pub use crate::marker::<a class="struct" href="../marker/struct.Python.html" title="struct pyo3::marker::Python">Python</a>;</code></div></li><li><div class="item-name" id="reexport.PyRef"><code>pub use crate::pycell::<a class="struct" href="../pycell/struct.PyRef.html" title="struct pyo3::pycell::PyRef">PyRef</a>;</code></div></li><li><div class="item-name" id="reexport.PyRefMut"><code>pub use crate::pycell::<a class="struct" href="../pycell/struct.PyRefMut.html" title="struct pyo3::pycell::PyRefMut">PyRefMut</a>;</code></div></li><li><div class="item-name" id="reexport.PyClassInitializer"><code>pub use crate::pyclass_init::<a class="struct" href="../pyclass_init/struct.PyClassInitializer.html" title="struct pyo3::pyclass_init::PyClassInitializer">PyClassInitializer</a>;</code></div></li><li><div class="item-name" id="reexport.PyAny"><code>pub use crate::types::<a class="struct" href="../types/struct.PyAny.html" title="struct pyo3::types::PyAny">PyAny</a>;</code></div></li><li><div class="item-name" id="reexport.PyModule"><code>pub use crate::types::<a class="struct" href="../types/struct.PyModule.html" title="struct pyo3::types::PyModule">PyModule</a>;</code></div></li></ul><h2 id="macros" class="section-header">Macros<a href="#macros" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="macro" href="macro.wrap_pyfunction.html" title="macro pyo3::prelude::wrap_pyfunction">wrap_<wbr>pyfunction</a></div><div class="desc docblock-short">Wraps a Rust function annotated with <a href="../attr.pyfunction.html" title="attr pyo3::pyfunction"><code>#[pyfunction]</code></a>.</div></li><li><div class="item-name"><a class="macro" href="macro.wrap_pyfunction_bound.html" title="macro pyo3::prelude::wrap_pyfunction_bound">wrap_<wbr>pyfunction_<wbr>bound</a><wbr><span class="stab deprecated" title="">Deprecated</span></div><div class="desc docblock-short">Wraps a Rust function annotated with <a href="../attr.pyfunction.html" title="attr pyo3::pyfunction"><code>#[pyfunction]</code></a>.</div></li></ul><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.Borrowed.html" title="struct pyo3::prelude::Borrowed">Borrowed</a></div><div class="desc docblock-short">A borrowed equivalent to <code>Bound</code>.</div></li><li><div class="item-name"><a class="struct" href="struct.Bound.html" title="struct pyo3::prelude::Bound">Bound</a></div><div class="desc docblock-short">A GIL-attached equivalent to <a href="../struct.Py.html" title="struct pyo3::Py"><code>Py<T></code></a>.</div></li><li><div class="item-name"><a class="struct" href="struct.Py.html" title="struct pyo3::prelude::Py">Py</a></div><div class="desc docblock-short">A GIL-independent reference to an object allocated on the Python heap.</div></li><li><div class="item-name"><a class="struct" href="struct.PyErr.html" title="struct pyo3::prelude::PyErr">PyErr</a></div><div class="desc docblock-short">Represents a Python exception.</div></li></ul><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="trait" href="trait.PyAnyMethods.html" title="trait pyo3::prelude::PyAnyMethods">PyAny<wbr>Methods</a></div><div class="desc docblock-short">This trait represents the Python APIs which are usable on all Python objects.</div></li><li><div class="item-name"><a class="trait" href="trait.PyBoolMethods.html" title="trait pyo3::prelude::PyBoolMethods">PyBool<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyBool.html" title="struct pyo3::types::PyBool"><code>PyBool</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyByteArrayMethods.html" title="trait pyo3::prelude::PyByteArrayMethods">PyByte<wbr>Array<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyByteArray.html" title="struct pyo3::types::PyByteArray"><code>PyByteArray</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyBytesMethods.html" title="trait pyo3::prelude::PyBytesMethods">PyBytes<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyBytes.html" title="struct pyo3::types::PyBytes"><code>PyBytes</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyCapsuleMethods.html" title="trait pyo3::prelude::PyCapsuleMethods">PyCapsule<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyCapsule.html" title="struct pyo3::types::PyCapsule"><code>PyCapsule</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyComplexMethods.html" title="trait pyo3::prelude::PyComplexMethods">PyComplex<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyComplex.html" title="struct pyo3::types::PyComplex"><code>PyComplex</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyDictMethods.html" title="trait pyo3::prelude::PyDictMethods">PyDict<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyDict.html" title="struct pyo3::types::PyDict"><code>PyDict</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyFloatMethods.html" title="trait pyo3::prelude::PyFloatMethods">PyFloat<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyFloat.html" title="struct pyo3::types::PyFloat"><code>PyFloat</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyFrozenSetMethods.html" title="trait pyo3::prelude::PyFrozenSetMethods">PyFrozen<wbr>SetMethods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyFrozenSet.html" title="struct pyo3::types::PyFrozenSet"><code>PyFrozenSet</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyListMethods.html" title="trait pyo3::prelude::PyListMethods">PyList<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyList.html" title="struct pyo3::types::PyList"><code>PyList</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyMappingMethods.html" title="trait pyo3::prelude::PyMappingMethods">PyMapping<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyMapping.html" title="struct pyo3::types::PyMapping"><code>PyMapping</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyMappingProxyMethods.html" title="trait pyo3::prelude::PyMappingProxyMethods">PyMapping<wbr>Proxy<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyMappingProxy.html" title="struct pyo3::types::PyMappingProxy"><code>PyMappingProxy</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyModuleMethods.html" title="trait pyo3::prelude::PyModuleMethods">PyModule<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyModule.html" title="struct pyo3::types::PyModule"><code>PyModule</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PySequenceMethods.html" title="trait pyo3::prelude::PySequenceMethods">PySequence<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PySequence.html" title="struct pyo3::types::PySequence"><code>PySequence</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PySetMethods.html" title="trait pyo3::prelude::PySetMethods">PySet<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PySet.html" title="struct pyo3::types::PySet"><code>PySet</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PySliceMethods.html" title="trait pyo3::prelude::PySliceMethods">PySlice<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PySlice.html" title="struct pyo3::types::PySlice"><code>PySlice</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyStringMethods.html" title="trait pyo3::prelude::PyStringMethods">PyString<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyString.html" title="struct pyo3::types::PyString"><code>PyString</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyTracebackMethods.html" title="trait pyo3::prelude::PyTracebackMethods">PyTraceback<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyTraceback.html" title="struct pyo3::types::PyTraceback"><code>PyTraceback</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyTupleMethods.html" title="trait pyo3::prelude::PyTupleMethods">PyTuple<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyTuple.html" title="struct pyo3::types::PyTuple"><code>PyTuple</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyTypeMethods.html" title="trait pyo3::prelude::PyTypeMethods">PyType<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyType.html" title="struct pyo3::types::PyType"><code>PyType</code></a>.</div></li><li><div class="item-name"><a class="trait" href="trait.PyWeakrefMethods.html" title="trait pyo3::prelude::PyWeakrefMethods">PyWeakref<wbr>Methods</a></div><div class="desc docblock-short">Implementation of functionality for <a href="../types/struct.PyWeakref.html" title="struct pyo3::types::PyWeakref"><code>PyWeakref</code></a>.</div></li></ul><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="type" href="type.PyObject.html" title="type pyo3::prelude::PyObject">PyObject</a></div><div class="desc docblock-short">A commonly-used alias for <code>Py<PyAny></code>.</div></li><li><div class="item-name"><a class="type" href="type.PyResult.html" title="type pyo3::prelude::PyResult">PyResult</a></div><div class="desc docblock-short">Represents the result of a Python call.</div></li></ul><h2 id="attributes" class="section-header">Attribute Macros<a href="#attributes" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="attr" href="attr.pyclass.html" title="attr pyo3::prelude::pyclass">pyclass</a></div></li><li><div class="item-name"><a class="attr" href="attr.pyfunction.html" title="attr pyo3::prelude::pyfunction">pyfunction</a></div><div class="desc docblock-short">A proc macro used to expose Rust functions to Python.</div></li><li><div class="item-name"><a class="attr" href="attr.pymethods.html" title="attr pyo3::prelude::pymethods">pymethods</a></div><div class="desc docblock-short">A proc macro used to expose methods to Python.</div></li><li><div class="item-name"><a class="attr" href="attr.pymodule.html" title="attr pyo3::prelude::pymodule">pymodule</a></div><div class="desc docblock-short">A proc macro used to implement Python modules.</div></li></ul><h2 id="derives" class="section-header">Derive Macros<a href="#derives" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="derive" href="derive.FromPyObject.html" title="derive pyo3::prelude::FromPyObject">From<wbr>PyObject</a></div></li><li><div class="item-name"><a class="derive" href="derive.IntoPyObject.html" title="derive pyo3::prelude::IntoPyObject">Into<wbr>PyObject</a></div></li><li><div class="item-name"><a class="derive" href="derive.IntoPyObjectRef.html" title="derive pyo3::prelude::IntoPyObjectRef">Into<wbr>PyObject<wbr>Ref</a></div></li></ul></section></div></main></body></html> |