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<h1>26. Debugging and Profiling<a class="headerlink" href="#debugging-and-profiling" title="Permalink to this headline">¶</a></h1>
<p>These libraries help you with Python development: the debugger enables you to
step through code, analyze stack frames and set breakpoints etc., and the
profilers run code and give you a detailed breakdown of execution times,
allowing you to identify bottlenecks in your programs.</p>
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<li class="toctree-l1"><a class="reference internal" href="bdb.html">26.1. <code class="xref py py-mod docutils literal notranslate"><span class="pre">bdb</span></code> — Debugger framework</a></li>
<li class="toctree-l1"><a class="reference internal" href="pdb.html">26.2. <code class="xref py py-mod docutils literal notranslate"><span class="pre">pdb</span></code> — The Python Debugger</a></li>
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<li class="toctree-l1"><a class="reference internal" href="hotshot.html">26.5. <code class="xref py py-mod docutils literal notranslate"><span class="pre">hotshot</span></code> — High performance logging profiler</a><ul>
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<li class="toctree-l1"><a class="reference internal" href="timeit.html">26.6. <code class="xref py py-mod docutils literal notranslate"><span class="pre">timeit</span></code> — Measure execution time of small code snippets</a><ul>
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<li class="toctree-l1"><a class="reference internal" href="trace.html">26.7. <code class="xref py py-mod docutils literal notranslate"><span class="pre">trace</span></code> — Trace or track Python statement execution</a><ul>
<li class="toctree-l2"><a class="reference internal" href="trace.html#command-line-usage">26.7.1. Command-Line Usage</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="trace.html#modifiers">26.7.1.2. Modifiers</a></li>
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