looking for more pythonic apporach
<p>Just wrote this function...</p>

<pre><code>def nrofleadingchars(stringtotest, testchar='\t'):
    count = 0
    for c in stringtotest:
        if c == testchar:
            count = count + 1
        else:
            return count
    return count
</code></pre>

<p>However does not feel pythonic 'enough', suggestions?</p>
