| |
| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <meta charset="utf-8" /> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> |
| |
| <title>Futures and sequences: f_traverse, f_sequence, f_zip — more-executors documentation</title> |
| <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> |
| <link rel="stylesheet" type="text/css" href="../_static/alabaster.css" /> |
| <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> |
| <script src="../_static/jquery.js"></script> |
| <script src="../_static/underscore.js"></script> |
| <script src="../_static/doctools.js"></script> |
| <link rel="index" title="Index" href="../genindex.html" /> |
| <link rel="search" title="Search" href="../search.html" /> |
| <link rel="prev" title="Boolean operations: f_or, f_and" href="futures-bool.html" /> |
| |
| <link rel="stylesheet" href="../_static/custom.css" type="text/css" /> |
| |
| |
| <meta name="viewport" content="width=device-width, initial-scale=0.9, maximum-scale=0.9" /> |
| |
| </head><body> |
| |
| |
| <div class="document"> |
| <div class="documentwrapper"> |
| <div class="bodywrapper"> |
| |
| |
| <div class="body" role="main"> |
| |
| <section id="futures-and-sequences-f-traverse-f-sequence-f-zip"> |
| <h1>Futures and sequences: <code class="docutils literal notranslate"><span class="pre">f_traverse</span></code>, <code class="docutils literal notranslate"><span class="pre">f_sequence</span></code>, <code class="docutils literal notranslate"><span class="pre">f_zip</span></code><a class="headerlink" href="#futures-and-sequences-f-traverse-f-sequence-f-zip" title="Permalink to this headline">¶</a></h1> |
| <dl class="py function"> |
| <dt class="sig sig-object py" id="more_executors.f_zip"> |
| <span class="sig-prename descclassname"><span class="pre">more_executors.</span></span><span class="sig-name descname"><span class="pre">f_zip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">fs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#more_executors.f_zip" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Create a new future holding the return values of any number of input futures.</p> |
| <p>Signature: <code class="code docutils literal notranslate"><span class="pre">Future<A>[,</span> <span class="pre">Future<B>[,</span> <span class="pre">...]]</span> <span class="pre">⟶</span> <span class="pre">Future<A[,</span> <span class="pre">B[,</span> <span class="pre">...]]></span></code></p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><p><strong>fs</strong> (<a class="reference external" href="https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future" title="(in Python v3.11)"><em>Future</em></a>) – Any number of futures.</p> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><p><dl> |
| <dt><a class="reference external" href="https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">Future</span></code></a> of <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#tuple" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">tuple</span></code></a></dt><dd><p>A future holding the returned values of all input futures as a tuple. |
| The returned tuple has the same length and order as the input futures.</p> |
| <p>Alternatively, a future raising an exception or a cancelled future, |
| if any input futures raised an exception or was cancelled.</p> |
| </dd> |
| </dl> |
| </p> |
| </dd> |
| </dl> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>This function is tested with up to 100,000 input futures. |
| Exceeding this limit may result in performance issues.</p> |
| </div> |
| <div class="versionadded"> |
| <p><span class="versionmodified added">New in version 1.19.0.</span></p> |
| </div> |
| </dd></dl> |
| |
| <dl class="py function"> |
| <dt class="sig sig-object py" id="more_executors.f_sequence"> |
| <span class="sig-prename descclassname"><span class="pre">more_executors.</span></span><span class="sig-name descname"><span class="pre">f_sequence</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">futures</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#more_executors.f_sequence" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Transform a list of futures into a future containing a list.</p> |
| <p>Signature: <code class="code docutils literal notranslate"><span class="pre">list<Future<X>></span> <span class="pre">⟶</span> <span class="pre">Future<list<X>></span></code></p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><p><strong>futures</strong> (iterable of <a class="reference external" href="https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">Future</span></code></a>) – A list or other iterable of futures.</p> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><p><dl class="simple"> |
| <dt><a class="reference external" href="https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">Future</span></code></a> of <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a></dt><dd><p>A future resolved with either:</p> |
| <ul class="simple"> |
| <li><p>a list holding the output value of each input future</p></li> |
| <li><p>or an exception, if any input future raised an exception</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </p> |
| </dd> |
| </dl> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>This function is tested with up to 100,000 input futures. |
| Exceeding this limit may result in performance issues.</p> |
| </div> |
| <div class="versionadded"> |
| <p><span class="versionmodified added">New in version 1.19.0.</span></p> |
| </div> |
| </dd></dl> |
| |
| <dl class="py function"> |
| <dt class="sig sig-object py" id="more_executors.f_traverse"> |
| <span class="sig-prename descclassname"><span class="pre">more_executors.</span></span><span class="sig-name descname"><span class="pre">f_traverse</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">fn</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">xs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#more_executors.f_traverse" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Traverse over an iterable calling a future-returning function, |
| and return a future holding the returned values as a list.</p> |
| <p>Signature: <code class="code docutils literal notranslate"><span class="pre">fn<A⟶Future<B>>,</span> <span class="pre">iterable<A></span> <span class="pre">⟶</span> <span class="pre">Future<list<B>></span></code></p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>fn</strong> (<em>callable</em>) – A unary function returning a future.</p></li> |
| <li><p><strong>xs</strong> (<em>iterable</em>) – An iterable to be traversed.</p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><p><dl class="simple"> |
| <dt><a class="reference external" href="https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">Future</span></code></a> of <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.11)"><code class="xref py py-class docutils literal notranslate"><span class="pre">list</span></code></a></dt><dd><p>A future resolved with either:</p> |
| <ul class="simple"> |
| <li><p>a list holding the resolved output values of <code class="xref py py-obj docutils literal notranslate"><span class="pre">fn</span></code></p></li> |
| <li><p>or an exception, if <code class="xref py py-obj docutils literal notranslate"><span class="pre">fn</span></code> or any future produced by <code class="xref py py-obj docutils literal notranslate"><span class="pre">fn</span></code> failed</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </p> |
| </dd> |
| </dl> |
| <div class="versionadded"> |
| <p><span class="versionmodified added">New in version 1.19.0.</span></p> |
| </div> |
| </dd></dl> |
| |
| </section> |
| |
| |
| </div> |
| |
| </div> |
| </div> |
| <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> |
| <div class="sphinxsidebarwrapper"> |
| <h1 class="logo"><a href="../index.html">more-executors</a></h1> |
| |
| |
| |
| <p class="blurb">A library of composable Python executors and futures</p> |
| |
| |
| |
| |
| |
| |
| |
| |
| <h3>Navigation</h3> |
| <p class="caption" role="heading"><span class="caption-text">Contents:</span></p> |
| <ul class="current"> |
| <li class="toctree-l1"><a class="reference internal" href="../user-guide.html">User Guide</a></li> |
| <li class="toctree-l1 current"><a class="reference internal" href="../api-reference.html">Reference</a><ul class="current"> |
| <li class="toctree-l2"><a class="reference internal" href="base-executors.html">Base executors: <code class="docutils literal notranslate"><span class="pre">thread_pool</span></code>, <code class="docutils literal notranslate"><span class="pre">process_pool</span></code>, <code class="docutils literal notranslate"><span class="pre">sync</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="retry.html">Retrying: <code class="docutils literal notranslate"><span class="pre">RetryExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="throttle.html">Throttling: <code class="docutils literal notranslate"><span class="pre">ThrottleExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="timeout.html">Timing out futures: <code class="docutils literal notranslate"><span class="pre">f_timeout</span></code>, <code class="docutils literal notranslate"><span class="pre">TimeoutExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="cancel.html">Cancellation of futures: <code class="docutils literal notranslate"><span class="pre">f_nocancel</span></code>, <code class="docutils literal notranslate"><span class="pre">CancelOnShutdownExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="poll.html">Polling: <code class="docutils literal notranslate"><span class="pre">PollExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="asyncio.html">asyncio bridge: <code class="docutils literal notranslate"><span class="pre">AsyncioExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="bind.html">Binding callables to executors: <code class="docutils literal notranslate"><span class="pre">bind</span></code>, <code class="docutils literal notranslate"><span class="pre">flat_bind</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="futures-create.html">Creating futures from values: <code class="docutils literal notranslate"><span class="pre">f_return*</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="futures-map.html">Transforming futures: <code class="docutils literal notranslate"><span class="pre">f_map</span></code>, <code class="docutils literal notranslate"><span class="pre">f_flat_map</span></code>, <code class="docutils literal notranslate"><span class="pre">MapExecutor</span></code>, <code class="docutils literal notranslate"><span class="pre">FlatMapExecutor</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="futures-proxy.html">Proxy futures: <code class="docutils literal notranslate"><span class="pre">f_proxy</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="futures-apply.html">Applying functions: <code class="docutils literal notranslate"><span class="pre">f_apply</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="futures-bool.html">Boolean operations: <code class="docutils literal notranslate"><span class="pre">f_or</span></code>, <code class="docutils literal notranslate"><span class="pre">f_and</span></code></a></li> |
| <li class="toctree-l2 current"><a class="current reference internal" href="#">Futures and sequences: <code class="docutils literal notranslate"><span class="pre">f_traverse</span></code>, <code class="docutils literal notranslate"><span class="pre">f_sequence</span></code>, <code class="docutils literal notranslate"><span class="pre">f_zip</span></code></a></li> |
| </ul> |
| </li> |
| </ul> |
| |
| |
| <hr /> |
| <ul> |
| |
| <li class="toctree-l1"><a href="https://github.com/rohanpm/more-executors">Source</a></li> |
| |
| <li class="toctree-l1"><a href="https://pypi.python.org/pypi/more-executors">PyPI</a></li> |
| |
| </ul> |
| <div class="relations"> |
| <h3>Related Topics</h3> |
| <ul> |
| <li><a href="../index.html">Documentation overview</a><ul> |
| <li><a href="../api-reference.html">Reference</a><ul> |
| <li>Previous: <a href="futures-bool.html" title="previous chapter">Boolean operations: <code class="docutils literal notranslate"><span class="pre">f_or</span></code>, <code class="docutils literal notranslate"><span class="pre">f_and</span></code></a></li> |
| </ul></li> |
| </ul></li> |
| </ul> |
| </div> |
| <div id="searchbox" style="display: none" role="search"> |
| <h3 id="searchlabel">Quick search</h3> |
| <div class="searchformwrapper"> |
| <form class="search" action="../search.html" method="get"> |
| <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/> |
| <input type="submit" value="Go" /> |
| </form> |
| </div> |
| </div> |
| <script>$('#searchbox').show(0);</script> |
| |
| |
| |
| |
| |
| |
| |
| |
| </div> |
| </div> |
| <div class="clearer"></div> |
| </div> |
| <div class="footer"> |
| ©2021, Rohan McGovern. |
| |
| | |
| <a href="../_sources/reference/futures-lists.rst.txt" |
| rel="nofollow">Page source</a> |
| </div> |
| |
| |
| <a href="https://github.com/rohanpm/more-executors" class="github"> |
| <img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub" class="github"/> |
| </a> |
| |
| |
| |
| </body> |
| </html> |
