title: Indentation inconsistency [PYTHON] TabError [Different Editors]
body: <p>I wrote a few python programs on Idle in Windows. I later shifted to gedit on Ubuntu 14.04. Both have <strong>python3</strong> working.</p>
  
  <p>I edited these files in gedit. </p>
  
  <p>When I run these files, I get</p>
  
  <pre><code>'TabError: inconsistent use of tabs and spaces in indentation' 
  </code></pre>
  
  <p>error, even when <strong><em>VISUALLY</em></strong>, there is no inconsistent tabbing or indentation done.</p>
  
  <p>[Seemingly, on Windows' Idle the tabs are <strong>4-spaces wide</strong>, whereas in gedit, the tabs currently are <strong>8-spaces wide</strong>. So, I couldn't use <code>TAB</code> directly.]</p>
  
  <p>How to resolve this error and the issue? 
  Any solutions?</p>