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<h1>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="faulthandler.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">faulthandler</span></code> — Dump the Python traceback</a><ul>
<li class="toctree-l2"><a class="reference internal" href="faulthandler.html#dumping-the-traceback">Dumping the traceback</a></li>
<li class="toctree-l2"><a class="reference internal" href="faulthandler.html#fault-handler-state">Fault handler state</a></li>
<li class="toctree-l2"><a class="reference internal" href="faulthandler.html#dumping-the-tracebacks-after-a-timeout">Dumping the tracebacks after a timeout</a></li>
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<li class="toctree-l2"><a class="reference internal" href="pdb.html#debugger-commands">Debugger Commands</a></li>
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<li class="toctree-l1"><a class="reference internal" href="profile.html">The Python Profilers</a><ul>
<li class="toctree-l2"><a class="reference internal" href="profile.html#introduction-to-the-profilers">Introduction to the profilers</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#instant-user-s-manual">Instant User’s Manual</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#module-cProfile"><code class="xref py py-mod docutils literal notranslate"><span class="pre">profile</span></code> and <code class="xref py py-mod docutils literal notranslate"><span class="pre">cProfile</span></code> Module Reference</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#the-stats-class">The <code class="xref py py-class docutils literal notranslate"><span class="pre">Stats</span></code> Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#what-is-deterministic-profiling">What Is Deterministic Profiling?</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#limitations">Limitations</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#calibration">Calibration</a></li>
<li class="toctree-l2"><a class="reference internal" href="profile.html#using-a-custom-timer">Using a custom timer</a></li>
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<li class="toctree-l1"><a class="reference internal" href="timeit.html"><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"><code class="xref py py-mod docutils literal notranslate"><span class="pre">trace</span></code> — Trace or track Python statement execution</a><ul>
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<li class="toctree-l1"><a class="reference internal" href="tracemalloc.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">tracemalloc</span></code> — Trace memory allocations</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#display-the-top-10">Display the top 10</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#compute-differences">Compute differences</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#get-the-traceback-of-a-memory-block">Get the traceback of a memory block</a></li>
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<li class="toctree-l2"><a class="reference internal" href="tracemalloc.html#api">API</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#frame">Frame</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#snapshot">Snapshot</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#statistic">Statistic</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#statisticdiff">StatisticDiff</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#trace">Trace</a></li>
<li class="toctree-l3"><a class="reference internal" href="tracemalloc.html#traceback">Traceback</a></li>
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