title: Sorting error on Jupyter
body: <p>the following code works perfectly fine on my interpreter</p>
  
  <pre><code>a = [5, 1, 4, 3]
  b = sorted(a)
  </code></pre>
  
  <p>why does it give me this error when I run it from Jupiter:</p>
  
  <pre><code>---------------------------------------------------------------------------
  TypeError                                 Traceback (most recent call last)
  &lt;ipython-input-71-4a5766271a85&gt; in &lt;module&gt;()
  ----&gt; 1 b = sorted(a)
  
  TypeError: 'list' object is not callable
  </code></pre>
  
  <p>Version:</p>
  
  <pre><code>Server Information:
  You are using IPython notebook.
  
  The version of the notebook server is 3.2.0-8b0eef4 and is running on:
  Python 2.7.10 |Anaconda 2.3.0 (64-bit)| (default, May 28 2015, 16:44:52) [MSC v.1500 64 bit (AMD64)]
  
  Current Kernel Information:
  Python 2.7.10 |Anaconda 2.3.0 (64-bit)| (default, May 28 2015, 16:44:52) [MSC v.1500 64 bit (AMD64)]
  Type "copyright", "credits" or "license" for more information.
  
  IPython 3.2.0 -- An enhanced Interactive Python.
  Anaconda is brought to you by Continuum Analytics.
  Please check out: http://continuum.io/thanks and https://anaconda.org
  ?         -&gt; Introduction and overview of IPython's features.
  %quickref -&gt; Quick reference.
  help      -&gt; Python's own help system.
  object?   -&gt; Details about 'object', use 'object??' for extra details.
  %guiref   -&gt; A brief reference about the graphical user interface.
  </code></pre>