Pythonic way to mix two lists
<p>I have two lists of length n and n+1:</p>

<pre><code>[a_1, a_2, ..., a_n]
[b_1, b_2, ..., b_(n+1)]
</code></pre>

<p>I want a function giving as a result a list with alternate elements from the two, that is</p>

<pre><code>[b_1, a_1, ..., b_n, a_n, b_(n+1)]
</code></pre>

<p>The following works, but does not look smart:</p>

<pre><code>def list_mixing(list_long,list_short):
    list_res = []
    for i in range(len(list_short)):
        list_res.extend([list_long[i], list_short[i]])
    list_res.append(list_long[-1])
    return list_res
</code></pre>

<p>Can anyone suggest a more pythonic way of doing this? Thanks!</p>
