How to merge a list of dict to one dict
<p>I have a list of dict convert from yaml, but how do I merge them to a new one?</p>

<p>I would like to merge this;</p>

<pre><code>ip_service_list = [{'192.168.15.90': {'process': {'nginx': 1}}}, {'192.168.15.90': {'process': {'varnish': 1}}}, {'192.168.15.91': {'process': {'tomcat': 1}}}]
</code></pre>

<p>to become this;</p>

<pre><code>{
'192.168.15.90': 
    {'process': {'nginx': 1,'varnish': 1}}}, 
'192.168.15.91': 
    {'process': {'tomcat': 1}
}
</code></pre>
