Prepend the same string to all items in a list
<p>Have done some searching through Stack Exchange answered questions but have been unable to find what I am looking for.</p>

<p>Given the following list:</p>

<pre><code>a = [1, 2, 3, 4]
</code></pre>

<p>How would I create:</p>

<pre><code>a = ['hello1', 'hello2', 'hello3', 'hello4']
</code></pre>

<p>Thanks!</p>
