216 lines
9.8 KiB
HTML
216 lines
9.8 KiB
HTML
|
|
||
|
<!DOCTYPE html>
|
||
|
|
||
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
|
<head>
|
||
|
<meta charset="utf-8" />
|
||
|
<title>Abstract Objects Layer — Python 3.7.4 documentation</title>
|
||
|
<link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
|
||
|
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
|
||
|
|
||
|
<script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
|
||
|
<script type="text/javascript" src="../_static/jquery.js"></script>
|
||
|
<script type="text/javascript" src="../_static/underscore.js"></script>
|
||
|
<script type="text/javascript" src="../_static/doctools.js"></script>
|
||
|
<script type="text/javascript" src="../_static/language_data.js"></script>
|
||
|
|
||
|
<script type="text/javascript" src="../_static/sidebar.js"></script>
|
||
|
|
||
|
<link rel="search" type="application/opensearchdescription+xml"
|
||
|
title="Search within Python 3.7.4 documentation"
|
||
|
href="../_static/opensearch.xml"/>
|
||
|
<link rel="author" title="About these documents" href="../about.html" />
|
||
|
<link rel="index" title="Index" href="../genindex.html" />
|
||
|
<link rel="search" title="Search" href="../search.html" />
|
||
|
<link rel="copyright" title="Copyright" href="../copyright.html" />
|
||
|
<link rel="next" title="Object Protocol" href="object.html" />
|
||
|
<link rel="prev" title="Codec registry and support functions" href="codec.html" />
|
||
|
<link rel="shortcut icon" type="image/png" href="../_static/py.png" />
|
||
|
<link rel="canonical" href="https://docs.python.org/3/c-api/abstract.html" />
|
||
|
|
||
|
<script type="text/javascript" src="../_static/copybutton.js"></script>
|
||
|
<script type="text/javascript" src="../_static/switchers.js"></script>
|
||
|
|
||
|
|
||
|
|
||
|
<style>
|
||
|
@media only screen {
|
||
|
table.full-width-table {
|
||
|
width: 100%;
|
||
|
}
|
||
|
}
|
||
|
</style>
|
||
|
|
||
|
|
||
|
</head><body>
|
||
|
|
||
|
<div class="related" role="navigation" aria-label="related navigation">
|
||
|
<h3>Navigation</h3>
|
||
|
<ul>
|
||
|
<li class="right" style="margin-right: 10px">
|
||
|
<a href="../genindex.html" title="General Index"
|
||
|
accesskey="I">index</a></li>
|
||
|
<li class="right" >
|
||
|
<a href="../py-modindex.html" title="Python Module Index"
|
||
|
>modules</a> |</li>
|
||
|
<li class="right" >
|
||
|
<a href="object.html" title="Object Protocol"
|
||
|
accesskey="N">next</a> |</li>
|
||
|
<li class="right" >
|
||
|
<a href="codec.html" title="Codec registry and support functions"
|
||
|
accesskey="P">previous</a> |</li>
|
||
|
<li><img src="../_static/py.png" alt=""
|
||
|
style="vertical-align: middle; margin-top: -1px"/></li>
|
||
|
<li><a href="https://www.python.org/">Python</a> »</li>
|
||
|
<li>
|
||
|
<span class="language_switcher_placeholder">en</span>
|
||
|
<span class="version_switcher_placeholder">3.7.4</span>
|
||
|
<a href="../index.html">Documentation </a> »
|
||
|
</li>
|
||
|
|
||
|
<li class="nav-item nav-item-1"><a href="index.html" accesskey="U">Python/C API Reference Manual</a> »</li>
|
||
|
<li class="right">
|
||
|
|
||
|
|
||
|
<div class="inline-search" style="display: none" role="search">
|
||
|
<form class="inline-search" action="../search.html" method="get">
|
||
|
<input placeholder="Quick search" type="text" name="q" />
|
||
|
<input type="submit" value="Go" />
|
||
|
<input type="hidden" name="check_keywords" value="yes" />
|
||
|
<input type="hidden" name="area" value="default" />
|
||
|
</form>
|
||
|
</div>
|
||
|
<script type="text/javascript">$('.inline-search').show(0);</script>
|
||
|
|
|
||
|
</li>
|
||
|
|
||
|
</ul>
|
||
|
</div>
|
||
|
|
||
|
<div class="document">
|
||
|
<div class="documentwrapper">
|
||
|
<div class="bodywrapper">
|
||
|
<div class="body" role="main">
|
||
|
|
||
|
<div class="section" id="abstract-objects-layer">
|
||
|
<span id="abstract"></span><h1>Abstract Objects Layer<a class="headerlink" href="#abstract-objects-layer" title="Permalink to this headline">¶</a></h1>
|
||
|
<p>The functions in this chapter interact with Python objects regardless of their
|
||
|
type, or with wide classes of object types (e.g. all numerical types, or all
|
||
|
sequence types). When used on object types for which they do not apply, they
|
||
|
will raise a Python exception.</p>
|
||
|
<p>It is not possible to use these functions on objects that are not properly
|
||
|
initialized, such as a list object that has been created by <a class="reference internal" href="list.html#c.PyList_New" title="PyList_New"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyList_New()</span></code></a>,
|
||
|
but whose items have not been set to some non-<code class="docutils literal notranslate"><span class="pre">NULL</span></code> value yet.</p>
|
||
|
<div class="toctree-wrapper compound">
|
||
|
<ul>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="object.html">Object Protocol</a></li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="number.html">Number Protocol</a></li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="sequence.html">Sequence Protocol</a></li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="mapping.html">Mapping Protocol</a></li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="iter.html">Iterator Protocol</a></li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="buffer.html">Buffer Protocol</a><ul>
|
||
|
<li class="toctree-l2"><a class="reference internal" href="buffer.html#buffer-structure">Buffer structure</a></li>
|
||
|
<li class="toctree-l2"><a class="reference internal" href="buffer.html#buffer-request-types">Buffer request types</a><ul>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#request-independent-fields">request-independent fields</a></li>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#readonly-format">readonly, format</a></li>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#shape-strides-suboffsets">shape, strides, suboffsets</a></li>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#contiguity-requests">contiguity requests</a></li>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#compound-requests">compound requests</a></li>
|
||
|
</ul>
|
||
|
</li>
|
||
|
<li class="toctree-l2"><a class="reference internal" href="buffer.html#complex-arrays">Complex arrays</a><ul>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#numpy-style-shape-and-strides">NumPy-style: shape and strides</a></li>
|
||
|
<li class="toctree-l3"><a class="reference internal" href="buffer.html#pil-style-shape-strides-and-suboffsets">PIL-style: shape, strides and suboffsets</a></li>
|
||
|
</ul>
|
||
|
</li>
|
||
|
<li class="toctree-l2"><a class="reference internal" href="buffer.html#buffer-related-functions">Buffer-related functions</a></li>
|
||
|
</ul>
|
||
|
</li>
|
||
|
<li class="toctree-l1"><a class="reference internal" href="objbuffer.html">Old Buffer Protocol</a></li>
|
||
|
</ul>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
|
||
|
<div class="sphinxsidebarwrapper">
|
||
|
<h4>Previous topic</h4>
|
||
|
<p class="topless"><a href="codec.html"
|
||
|
title="previous chapter">Codec registry and support functions</a></p>
|
||
|
<h4>Next topic</h4>
|
||
|
<p class="topless"><a href="object.html"
|
||
|
title="next chapter">Object Protocol</a></p>
|
||
|
<div role="note" aria-label="source link">
|
||
|
<h3>This Page</h3>
|
||
|
<ul class="this-page-menu">
|
||
|
<li><a href="../bugs.html">Report a Bug</a></li>
|
||
|
<li>
|
||
|
<a href="https://github.com/python/cpython/blob/3.7/Doc/c-api/abstract.rst"
|
||
|
rel="nofollow">Show Source
|
||
|
</a>
|
||
|
</li>
|
||
|
</ul>
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
<div class="clearer"></div>
|
||
|
</div>
|
||
|
<div class="related" role="navigation" aria-label="related navigation">
|
||
|
<h3>Navigation</h3>
|
||
|
<ul>
|
||
|
<li class="right" style="margin-right: 10px">
|
||
|
<a href="../genindex.html" title="General Index"
|
||
|
>index</a></li>
|
||
|
<li class="right" >
|
||
|
<a href="../py-modindex.html" title="Python Module Index"
|
||
|
>modules</a> |</li>
|
||
|
<li class="right" >
|
||
|
<a href="object.html" title="Object Protocol"
|
||
|
>next</a> |</li>
|
||
|
<li class="right" >
|
||
|
<a href="codec.html" title="Codec registry and support functions"
|
||
|
>previous</a> |</li>
|
||
|
<li><img src="../_static/py.png" alt=""
|
||
|
style="vertical-align: middle; margin-top: -1px"/></li>
|
||
|
<li><a href="https://www.python.org/">Python</a> »</li>
|
||
|
<li>
|
||
|
<span class="language_switcher_placeholder">en</span>
|
||
|
<span class="version_switcher_placeholder">3.7.4</span>
|
||
|
<a href="../index.html">Documentation </a> »
|
||
|
</li>
|
||
|
|
||
|
<li class="nav-item nav-item-1"><a href="index.html" >Python/C API Reference Manual</a> »</li>
|
||
|
<li class="right">
|
||
|
|
||
|
|
||
|
<div class="inline-search" style="display: none" role="search">
|
||
|
<form class="inline-search" action="../search.html" method="get">
|
||
|
<input placeholder="Quick search" type="text" name="q" />
|
||
|
<input type="submit" value="Go" />
|
||
|
<input type="hidden" name="check_keywords" value="yes" />
|
||
|
<input type="hidden" name="area" value="default" />
|
||
|
</form>
|
||
|
</div>
|
||
|
<script type="text/javascript">$('.inline-search').show(0);</script>
|
||
|
|
|
||
|
</li>
|
||
|
|
||
|
</ul>
|
||
|
</div>
|
||
|
<div class="footer">
|
||
|
© <a href="../copyright.html">Copyright</a> 2001-2019, Python Software Foundation.
|
||
|
<br />
|
||
|
The Python Software Foundation is a non-profit corporation.
|
||
|
<a href="https://www.python.org/psf/donations/">Please donate.</a>
|
||
|
<br />
|
||
|
Last updated on Jul 13, 2019.
|
||
|
<a href="../bugs.html">Found a bug</a>?
|
||
|
<br />
|
||
|
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 2.0.1.
|
||
|
</div>
|
||
|
|
||
|
</body>
|
||
|
</html>
|