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index 796f500..e40c48f 100644
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-    <title>pyspark.streaming.kafka &#8212; PySpark master documentation</title>
+    <title>pyspark.streaming.kafka &#8212; PySpark 2.3.1 documentation</title>
     <link rel="stylesheet" href="../../../_static/nature.css" type="text/css" 
/>
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/>
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         HAS_SOURCE:  true,
@@ -31,7 +31,7 @@
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-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" 
accesskey="U">Module code</a> &#187;</li> 
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@@ -577,7 +577,7 @@
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       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" >Module 
code</a> &#187;</li> 
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http://git-wip-us.apache.org/repos/asf/spark-website/blob/5660fb9a/site/docs/2.3.1/api/python/_modules/pyspark/streaming/kinesis.html
----------------------------------------------------------------------
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b/site/docs/2.3.1/api/python/_modules/pyspark/streaming/kinesis.html
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   <head>
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-    <title>pyspark.streaming.kinesis &#8212; PySpark master 
documentation</title>
+    <title>pyspark.streaming.kinesis &#8212; PySpark 2.3.1 
documentation</title>
     <link rel="stylesheet" href="../../../_static/nature.css" type="text/css" 
/>
     <link rel="stylesheet" href="../../../_static/pygments.css" 
type="text/css" />
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/>
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
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-        VERSION:     'master',
+        VERSION:     '2.3.1',
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         HAS_SOURCE:  true,
@@ -31,7 +31,7 @@
       <h3>Navigation</h3>
       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" 
accesskey="U">Module code</a> &#187;</li> 
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@@ -191,7 +191,7 @@
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       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" >Module 
code</a> &#187;</li> 
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http://git-wip-us.apache.org/repos/asf/spark-website/blob/5660fb9a/site/docs/2.3.1/api/python/_modules/pyspark/streaming/listener.html
----------------------------------------------------------------------
diff --git 
a/site/docs/2.3.1/api/python/_modules/pyspark/streaming/listener.html 
b/site/docs/2.3.1/api/python/_modules/pyspark/streaming/listener.html
index 3dc1841..5f28ea9 100644
--- a/site/docs/2.3.1/api/python/_modules/pyspark/streaming/listener.html
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   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>pyspark.streaming.listener &#8212; PySpark master 
documentation</title>
+    <title>pyspark.streaming.listener &#8212; PySpark 2.3.1 
documentation</title>
     <link rel="stylesheet" href="../../../_static/nature.css" type="text/css" 
/>
     <link rel="stylesheet" href="../../../_static/pygments.css" 
type="text/css" />
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/>
     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
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-        VERSION:     'master',
+        VERSION:     '2.3.1',
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         HAS_SOURCE:  true,
@@ -31,7 +31,7 @@
       <h3>Navigation</h3>
       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" 
accesskey="U">Module code</a> &#187;</li> 
       </ul>
@@ -152,7 +152,7 @@
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       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../../index.html" >Module 
code</a> &#187;</li> 
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http://git-wip-us.apache.org/repos/asf/spark-website/blob/5660fb9a/site/docs/2.3.1/api/python/_modules/pyspark/taskcontext.html
----------------------------------------------------------------------
diff --git a/site/docs/2.3.1/api/python/_modules/pyspark/taskcontext.html 
b/site/docs/2.3.1/api/python/_modules/pyspark/taskcontext.html
index 5d7121a..f729864 100644
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   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>pyspark.taskcontext &#8212; PySpark master documentation</title>
+    <title>pyspark.taskcontext &#8212; PySpark 2.3.1 documentation</title>
     <link rel="stylesheet" href="../../_static/nature.css" type="text/css" />
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         HAS_SOURCE:  true,
@@ -31,7 +31,7 @@
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       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../index.html" 
accesskey="U">Module code</a> &#187;</li> 
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       <ul>
     
-        <li class="nav-item nav-item-0"><a href="../../index.html">PySpark 
master documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="../../index.html">PySpark 
2.3.1 documentation</a> &#187;</li>
 
           <li class="nav-item nav-item-1"><a href="../index.html" >Module 
code</a> &#187;</li> 
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----------------------------------------------------------------------
diff --git a/site/docs/2.3.1/api/python/index.html 
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index 3318e83..05f21e0 100644
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   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>Welcome to Spark Python API Docs! &#8212; PySpark master 
documentation</title>
+    <title>Welcome to Spark Python API Docs! &#8212; PySpark 2.3.1 
documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
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@@ -35,7 +35,7 @@
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              accesskey="N">next</a></li>
     
-        <li class="nav-item nav-item-0"><a href="#">PySpark master 
documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="#">PySpark 2.3.1 
documentation</a> &#187;</li>
  
       </ul>
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@@ -178,7 +178,7 @@
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              >next</a></li>
     
-        <li class="nav-item nav-item-0"><a href="#">PySpark master 
documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="#">PySpark 2.3.1 
documentation</a> &#187;</li>
  
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http://git-wip-us.apache.org/repos/asf/spark-website/blob/5660fb9a/site/docs/2.3.1/api/python/pyspark.html
----------------------------------------------------------------------
diff --git a/site/docs/2.3.1/api/python/pyspark.html 
b/site/docs/2.3.1/api/python/pyspark.html
index 6a6a043..c2b1dd7 100644
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+++ b/site/docs/2.3.1/api/python/pyspark.html
@@ -5,14 +5,14 @@
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   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <title>pyspark package &#8212; PySpark master documentation</title>
+    <title>pyspark package &#8212; PySpark 2.3.1 documentation</title>
     <link rel="stylesheet" href="_static/nature.css" type="text/css" />
     <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
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     <script type="text/javascript">
       var DOCUMENTATION_OPTIONS = {
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+        VERSION:     '2.3.1',
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@@ -39,7 +39,7 @@
           <a href="index.html" title="Welcome to Spark Python API Docs!"
              accesskey="P">previous</a> |</li>
     
-        <li class="nav-item nav-item-0"><a href="index.html">PySpark master 
documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PySpark 2.3.1 
documentation</a> &#187;</li>
  
       </ul>
     </div>  
@@ -273,7 +273,7 @@ Its format depends on the scheduler implementation.</p>
 <li>in case of YARN something like ‘application_1433865536131_34483’</li>
 </ul>
 <div class="highlight-default"><div class="highlight"><pre><span></span><span 
class="gp">&gt;&gt;&gt; </span><span class="n">sc</span><span 
class="o">.</span><span class="n">applicationId</span>  
-<span class="go">u&#39;local-...&#39;</span>
+<span class="go">&#39;local-...&#39;</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -758,7 +758,7 @@ Spark 1.2)</p>
 <span class="gp">... </span>   <span class="n">_</span> <span 
class="o">=</span> <span class="n">testFile</span><span class="o">.</span><span 
class="n">write</span><span class="p">(</span><span class="s2">&quot;Hello 
world!&quot;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">textFile</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">textFile</span><span class="p">(</span><span 
class="n">path</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">textFile</span><span 
class="o">.</span><span class="n">collect</span><span class="p">()</span>
-<span class="go">[u&#39;Hello world!&#39;]</span>
+<span class="go">[&#39;Hello world!&#39;]</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -781,10 +781,10 @@ serializer:</p>
 <span class="gp">... </span>   <span class="n">_</span> <span 
class="o">=</span> <span class="n">testFile</span><span class="o">.</span><span 
class="n">write</span><span class="p">(</span><span 
class="s2">&quot;Hello&quot;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">textFile</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">textFile</span><span class="p">(</span><span 
class="n">path</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">textFile</span><span 
class="o">.</span><span class="n">collect</span><span class="p">()</span>
-<span class="go">[u&#39;Hello&#39;]</span>
+<span class="go">[&#39;Hello&#39;]</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">parallelized</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">parallelize</span><span class="p">([</span><span 
class="s2">&quot;World!&quot;</span><span class="p">])</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">sorted</span><span 
class="p">(</span><span class="n">sc</span><span class="o">.</span><span 
class="n">union</span><span class="p">([</span><span 
class="n">textFile</span><span class="p">,</span> <span 
class="n">parallelized</span><span class="p">])</span><span 
class="o">.</span><span class="n">collect</span><span class="p">())</span>
-<span class="go">[u&#39;Hello&#39;, &#39;World!&#39;]</span>
+<span class="go">[&#39;Hello&#39;, &#39;World!&#39;]</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -834,7 +834,7 @@ fully in memory.</p>
 <span class="gp">... </span>   <span class="n">_</span> <span 
class="o">=</span> <span class="n">file2</span><span class="o">.</span><span 
class="n">write</span><span class="p">(</span><span 
class="s2">&quot;2&quot;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">textFiles</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">wholeTextFiles</span><span class="p">(</span><span 
class="n">dirPath</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">sorted</span><span 
class="p">(</span><span class="n">textFiles</span><span class="o">.</span><span 
class="n">collect</span><span class="p">())</span>
-<span class="go">[(u&#39;.../1.txt&#39;, u&#39;1&#39;), (u&#39;.../2.txt&#39;, 
u&#39;2&#39;)]</span>
+<span class="go">[(&#39;.../1.txt&#39;, &#39;1&#39;), (&#39;.../2.txt&#39;, 
&#39;2&#39;)]</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -1699,7 +1699,7 @@ If no storage level is specified defaults to (<code 
class="xref py py-class docu
 <code class="descname">pipe</code><span 
class="sig-paren">(</span><em>command</em>, <em>env=None</em>, 
<em>checkCode=False</em><span class="sig-paren">)</span><a class="reference 
internal" href="_modules/pyspark/rdd.html#RDD.pipe"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.RDD.pipe" title="Permalink to this definition">¶</a></dt>
 <dd><p>Return an RDD created by piping elements to a forked external 
process.</p>
 <div class="highlight-default"><div class="highlight"><pre><span></span><span 
class="gp">&gt;&gt;&gt; </span><span class="n">sc</span><span 
class="o">.</span><span class="n">parallelize</span><span 
class="p">([</span><span class="s1">&#39;1&#39;</span><span class="p">,</span> 
<span class="s1">&#39;2&#39;</span><span class="p">,</span> <span 
class="s1">&#39;&#39;</span><span class="p">,</span> <span 
class="s1">&#39;3&#39;</span><span class="p">])</span><span 
class="o">.</span><span class="n">pipe</span><span class="p">(</span><span 
class="s1">&#39;cat&#39;</span><span class="p">)</span><span 
class="o">.</span><span class="n">collect</span><span class="p">()</span>
-<span class="go">[u&#39;1&#39;, u&#39;2&#39;, u&#39;&#39;, u&#39;3&#39;]</span>
+<span class="go">[&#39;1&#39;, &#39;2&#39;, &#39;&#39;, &#39;3&#39;]</span>
 </pre></div>
 </div>
 <table class="docutils field-list" frame="void" rules="none">
@@ -1814,7 +1814,7 @@ using <cite>coalesce</cite>, which can avoid performing a 
shuffle.</p>
 
 <dl class="method">
 <dt id="pyspark.RDD.repartitionAndSortWithinPartitions">
-<code class="descname">repartitionAndSortWithinPartitions</code><span 
class="sig-paren">(</span><em>numPartitions=None</em>, 
<em>partitionFunc=&lt;function portable_hash&gt;</em>, <em>ascending=True</em>, 
<em>keyfunc=&lt;function &lt;lambda&gt;&gt;</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/rdd.html#RDD.repartitionAndSortWithinPartitions"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.RDD.repartitionAndSortWithinPartitions" title="Permalink to this 
definition">¶</a></dt>
+<code class="descname">repartitionAndSortWithinPartitions</code><span 
class="sig-paren">(</span><em>numPartitions=None</em>, 
<em>partitionFunc=&lt;function portable_hash&gt;</em>, <em>ascending=True</em>, 
<em>keyfunc=&lt;function RDD.&lt;lambda&gt;&gt;</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/rdd.html#RDD.repartitionAndSortWithinPartitions"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.RDD.repartitionAndSortWithinPartitions" title="Permalink to this 
definition">¶</a></dt>
 <dd><p>Repartition the RDD according to the given partitioner and, within each 
resulting partition,
 sort records by their keys.</p>
 <div class="highlight-default"><div class="highlight"><pre><span></span><span 
class="gp">&gt;&gt;&gt; </span><span class="n">rdd</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">parallelize</span><span class="p">([(</span><span 
class="mi">0</span><span class="p">,</span> <span class="mi">5</span><span 
class="p">),</span> <span class="p">(</span><span class="mi">3</span><span 
class="p">,</span> <span class="mi">8</span><span class="p">),</span> <span 
class="p">(</span><span class="mi">2</span><span class="p">,</span> <span 
class="mi">6</span><span class="p">),</span> <span class="p">(</span><span 
class="mi">0</span><span class="p">,</span> <span class="mi">8</span><span 
class="p">),</span> <span class="p">(</span><span class="mi">3</span><span 
class="p">,</span> <span class="mi">8</span><span class="p">),</span> <span 
class="p">(</span><span class="mi">1</span><span class="p">,</span> <span 
class="mi">3</span><span class="p">)])</span>
@@ -2104,7 +2104,7 @@ RDD’s key and value types. The mechanism is as 
follows:</p>
 <span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span 
class="nn">fileinput</span> <span class="k">import</span> <span 
class="nb">input</span><span class="p">,</span> <span 
class="n">hook_compressed</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">result</span> <span 
class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span 
class="nb">input</span><span class="p">(</span><span class="n">glob</span><span 
class="p">(</span><span class="n">tempFile3</span><span class="o">.</span><span 
class="n">name</span> <span class="o">+</span> <span 
class="s2">&quot;/part*.gz&quot;</span><span class="p">),</span> <span 
class="n">openhook</span><span class="o">=</span><span 
class="n">hook_compressed</span><span class="p">))</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="sa">b</span><span 
class="s1">&#39;&#39;</span><span class="o">.</span><span 
class="n">join</span><span class="p">(</span><span class="n">result</span><span 
class="p">)</span><span class="o">.</span><span class="n">decode</span><span 
class="p">(</span><span class="s1">&#39;utf-8&#39;</span><span 
class="p">)</span>
-<span class="go">u&#39;bar\nfoo\n&#39;</span>
+<span class="go">&#39;bar\nfoo\n&#39;</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -2115,7 +2115,7 @@ RDD’s key and value types. The mechanism is as 
follows:</p>
 <dd><p>Assign a name to this RDD.</p>
 <div class="highlight-default"><div class="highlight"><pre><span></span><span 
class="gp">&gt;&gt;&gt; </span><span class="n">rdd1</span> <span 
class="o">=</span> <span class="n">sc</span><span class="o">.</span><span 
class="n">parallelize</span><span class="p">([</span><span 
class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span 
class="p">])</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">rdd1</span><span 
class="o">.</span><span class="n">setName</span><span class="p">(</span><span 
class="s1">&#39;RDD1&#39;</span><span class="p">)</span><span 
class="o">.</span><span class="n">name</span><span class="p">()</span>
-<span class="go">u&#39;RDD1&#39;</span>
+<span class="go">&#39;RDD1&#39;</span>
 </pre></div>
 </div>
 </dd></dl>
@@ -2135,7 +2135,7 @@ RDD’s key and value types. The mechanism is as 
follows:</p>
 
 <dl class="method">
 <dt id="pyspark.RDD.sortByKey">
-<code class="descname">sortByKey</code><span 
class="sig-paren">(</span><em>ascending=True</em>, <em>numPartitions=None</em>, 
<em>keyfunc=&lt;function &lt;lambda&gt;&gt;</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/rdd.html#RDD.sortByKey"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.RDD.sortByKey" title="Permalink to this definition">¶</a></dt>
+<code class="descname">sortByKey</code><span 
class="sig-paren">(</span><em>ascending=True</em>, <em>numPartitions=None</em>, 
<em>keyfunc=&lt;function RDD.&lt;lambda&gt;&gt;</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/rdd.html#RDD.sortByKey"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.RDD.sortByKey" title="Permalink to this definition">¶</a></dt>
 <dd><p>Sorts this RDD, which is assumed to consist of (key, value) pairs.</p>
 <div class="highlight-default"><div class="highlight"><pre><span></span><span 
class="gp">&gt;&gt;&gt; </span><span class="n">tmp</span> <span 
class="o">=</span> <span class="p">[(</span><span 
class="s1">&#39;a&#39;</span><span class="p">,</span> <span 
class="mi">1</span><span class="p">),</span> <span class="p">(</span><span 
class="s1">&#39;b&#39;</span><span class="p">,</span> <span 
class="mi">2</span><span class="p">),</span> <span class="p">(</span><span 
class="s1">&#39;1&#39;</span><span class="p">,</span> <span 
class="mi">3</span><span class="p">),</span> <span class="p">(</span><span 
class="s1">&#39;d&#39;</span><span class="p">,</span> <span 
class="mi">4</span><span class="p">),</span> <span class="p">(</span><span 
class="s1">&#39;2&#39;</span><span class="p">,</span> <span 
class="mi">5</span><span class="p">)]</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">sc</span><span 
class="o">.</span><span class="n">parallelize</span><span 
class="p">(</span><span class="n">tmp</span><span class="p">)</span><span 
class="o">.</span><span class="n">sortByKey</span><span 
class="p">()</span><span class="o">.</span><span class="n">first</span><span 
class="p">()</span>
@@ -2673,7 +2673,7 @@ not be as fast as more specialized serializers.</p>
 
 <dl class="method">
 <dt id="pyspark.PickleSerializer.loads">
-<code class="descname">loads</code><span 
class="sig-paren">(</span><em>obj</em>, <em>encoding=None</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/serializers.html#PickleSerializer.loads"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.PickleSerializer.loads" title="Permalink to this 
definition">¶</a></dt>
+<code class="descname">loads</code><span 
class="sig-paren">(</span><em>obj</em>, <em>encoding='bytes'</em><span 
class="sig-paren">)</span><a class="reference internal" 
href="_modules/pyspark/serializers.html#PickleSerializer.loads"><span 
class="viewcode-link">[source]</span></a><a class="headerlink" 
href="#pyspark.PickleSerializer.loads" title="Permalink to this 
definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
@@ -2930,7 +2930,7 @@ TaskAttemptID.</p>
           <a href="index.html" title="Welcome to Spark Python API Docs!"
              >previous</a> |</li>
     
-        <li class="nav-item nav-item-0"><a href="index.html">PySpark master 
documentation</a> &#187;</li>
+        <li class="nav-item nav-item-0"><a href="index.html">PySpark 2.3.1 
documentation</a> &#187;</li>
  
       </ul>
     </div>


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