Formatted String Dynamically Adjustable
<p>If I want to make my formatted string dynamically adjustable, I will change the following code from</p>

<pre><code>print '%20s : %20s' % ("Python", "Very Good")
</code></pre>

<p>to</p>

<pre><code>width = 20
print ('%' + str(width) + 's : %' + str(width) + 's') % ("Python", "Very Good")
</code></pre>

<p>However, it seems that string concatenation is cumbersome here. Any other way to simplified it?</p>
