Hello,
context- trailhead module : Quick Start: Quip Live Apps > Run Your Live App in Quip

I Had to install python in order to execute quip-apps in order to success.
Creating a app using a python :
C:\..\quip-apps-sdk-0.91\bin>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python .\bin\quip-apps init myApp FCCAjAoobBu
INFO:root:Successfully initialized apps\myapp

I get an OK from npm install and build.
but I am not able to pack the application :
C:\..\quip-apps-sdk-0.91>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python bin\quip-apps pack apps\myapp\app
I get the following :

Hello,
context- trailhead module : Quick Start: Quip Live Apps > Run Your Live App in Quip

I Had to install python in order to execute quip-apps in order to success.
Creating a app using a python :
C:\..\quip-apps-sdk-0.91\bin>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python .\bin\quip-apps init myApp FCCAjAoobBu
INFO:root:Successfully initialized apps\myapp

I get an OK from npm install and build.
but I am not able to pack the application :
C:\..\quip-apps-sdk-0.91>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python bin\quip-apps pack apps\myapp\app
I get the following :

So on this page about halfway down it states: 
Create Custom Metadata Type Records
For SFA Field, enter Minimum Support Level.

I only see the Support Level field that was created on the account.  Also, I don't see that this is actually limiting the chosen fields (seems like that was the point of all of the new metadata fields).  Is there something I am doing wrong here, or is the example off?

Also, if anyone has built out a rules engine while referencing metadata, I'd love to see a link to an example of that.

Hello,
context- trailhead module : Quick Start: Quip Live Apps > Run Your Live App in Quip

I Had to install python in order to execute quip-apps in order to success.
Creating a app using a python :
C:\..\quip-apps-sdk-0.91\bin>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python .\bin\quip-apps init myApp FCCAjAoobBu
INFO:root:Successfully initialized apps\myapp

I get an OK from npm install and build.
but I am not able to pack the application :
C:\..\quip-apps-sdk-0.91>C:\Users\e371495\AppData\Local\Programs\Python\Python36-32\python bin\quip-apps pack apps\myapp\app
I get the following :