How to use extract and merge together in python
<p>Currently, I have two tools, Merge and Extract. Is there a way that I can extract what I want, and have it do the merge prior to my command? It would be great if I can find some sort of routine that will handle the defaulting for merge. How can I do this?</p>

<p>Any help will be much appreciated!</p>

<p>Thanks!</p>
