Issue Description

Dynamo crash when attempting to visualize Python 2 / Python 3 migration suggestions. Python script behavior changes between interpretation regimes. Reproduce with attached dyn (no dependencies).

What did you do?

Attempted to migrate Python 2 to Python 3. Clicked on the automated tool to visualize syntax differences

What did you expect to see?

I expected to see a comparison of Python 2 and Python 3 code.

What did you see instead?

Dynamo crashed.

What packages or external references (if any) were used?

Python migration crash reproduce.zip

Stack Trace

(From the Dynamo crash window select 'Details' -> 'Copy' and paste here)

OS: Microsoft Windows NT 10.0.19042.0
CLR: 4.0.30319.42000
Dynamo: 2.10.1.3976