My current company has an in-house Lambda deployment tool, and after discovering Serverless a few days ago I was put in charge of testing it out. I like it a lot, it's easy to use and it only took me about an hour to get one of my nodejs projects deployed with it.<p>It does have a flaw that caused my company not to replace our current tool for it: many python modules require being built on the same OS as the one that runs each Lambda, Amazon's own Linux flavor. What this means effectively is that you need to start up an EC2 instance, install all your packages in a virtualenv, and grab the site-packages folder, and drop it into your Lambda's directory, then deploy. This is really Amazon's fault, but my point is that it's not as 'just works' for python as it is for node.