No module named pyasn1.codec.der

Hello.
So, I've been trying to include one of the libs from lambda-packages, and failed repeatedly :(

I'm hitting on the error in the title:

No module named pyasn1.codec.der

Specifically, I'm trying to get the cryptography module into my lambda deployment packages, but maybe I'm misunderstanding the quick guide:

But, if you want to use this project the other (wrong) way, just put the contents of the .tar.gz archive into your lambda .zip.

Yes, I'm sorry, but I can't jump on Zappa at this point (maybe after this proof of concept is done), but it seems like I shouldn't have to, right?

So.. working on a Mac, I:

• downloaded lambda-packages-master.zip, extracted its contents
• dug into \lambda_packages\cryptography,
• grabbed and extracted (to libs-for-aws\cryptography ) the cryptography-1.4.tar.gz archive.

Then I built my Lambda Deployment Package, and added to it the libs-for-aws\cryptography directory.

Package via Cloud Formation, deploy to AWS, and, when my Lambda is triggered, I get a 500, and in CloudWatch logs I get this message (cauth is just the name of my Lambda package)

START RequestId: 938e62f0-18a2-11e7-a55f-d146b6ce0af9 Version: $LATEST
Unable to import module 'cauth': No module named pyasn1.codec.der
END RequestId: 938e62f0-18a2-11e7-a55f-d146b6ce0af9

Am I doing something wrong in the way I'm trying to include the cryptography package from lambda-packages?

Inspect lambda_packages/cryptography and the extracted cryptography-1.4.tar.gz contents first; then reproduce the AWS Lambda deployment using the described CloudFormation package and check the CloudWatch import error. Done means the deployed function imports cryptography without the pyasn1.codec.der error.