cannot write mode RGBA as JPEG : <p>I am learning to use 'pillow 5.0' following book 'Automate the boring stuff with python'</p>

<p>The info about the image object</p>

<pre><code>In [79]: audacious = auda
In [80]: print(audacious.format, audacious.size, audacious.mode)
PNG (1094, 960) RGBA
</code></pre>

<p>When I tried to convert filetype, it report error.</p>

<pre><code>In [83]: audacious.save('audacious.jpg')
OSError: cannot write mode RGBA as JPEG
</code></pre>

<p>There's no such a
n error in book.</p>
