title: How to open local file on Jupyter?
body: <p>In[1]:</p>
  
  <pre><code>path='/Users/apple/Downloads/train.csv'
  open(path).readline()
  </code></pre>
  
  <p>Out[1]:</p>
  
  <pre><code>FileNotFoundError                         Traceback (most recent call 
  last)
  &lt;ipython-input-7-7fad5faebc9b&gt; in &lt;module&gt;()
  ----&gt; 1 open(path).readline()
  
  FileNotFoundError: [Errno 2] No such file or directory: 
  '/Users/apple/Downloads/train.csv'
  </code></pre>
  
  <p>I'm confused a lot.I thought this code is exactly similar with many tutorials, and I'm sure I have this file in the right path, but why does it not works?</p>