title: FileNotFoundError: [Errno 2] No such file or directory but there is a file
body: <pre><code>fhand=open('mbox.txt')
  </code></pre>
  
  <p>mbox.txt file is in my desktop but python shell can't find it. And this is the traceback.</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  FileNotFoundError: [Errno 2] No such file or directory: 'mbox.txt'
  </code></pre>