How to iterate through multi dimensional array in python?
<p>I have array like this.</p>

<pre><code>documents = [['Human machine interface for lab abc computer applications','4'],
             ['A survey of user opinion of computer system response time','3'],
             ['The EPS user interface management system','2']]
</code></pre>

<p>Now i need to iterate through above array and get single dimensional array like below (without numbers)</p>

<pre><code>documents = ['Human machine interface for lab abc computer applications',
             'A survey of user opinion of computer system response time',
             'The EPS user interface management system']
</code></pre>
