Python2.7 on Ubuntu 14, running a single script fills out the cores
<p>I'm not using any parallelization in my code, but when I run my script my cores are all filled. Using htop I can see that all my cores are at 100%; on each core, most of it is red (kernel threads) and about 10% is green. I can also see in the process list my python command repeated about 20 times.</p>

<p>Is it possible Python does some parallelization on its own?</p>

<p>Thanks.</p>