Update Python Port

Python-Port.md

@@ -115,6 +115,14 @@ and spacing. `autopep8` can be used to automatically format your code
 5. SQLAlchemy ORM model attributes should be Capitalized if they are literal table columns or *forward references*, otherwise snake_cased for *backref references*.
 6. Use typed arguments as often as possible. We'd like to show users the types of arguments without relying on documentation, and this helps a ton with that.
 
+A few small clues about some of our local `aurweb` package utilities that should be used in tests:
+- Always use aurweb.db.(create|delete|query) for database
+  operations, where possible.
+- Always define mutable globals in the style: `var1 = var2 = None`.
+- `yield` the most dependent model in pytest setup fixture **iff**
+  you must delete records after test runs to maintain database
+  integrity. Example: test/test_account_type.py.
+
 ## Who, Where?
 <div id="who-where"></div>