Final answer:
The Python code for an assignment with business requirements is typically based on the Software Specification Document, which details the intended features and constraints of the software.
Step-by-step explanation:
When writing Python code for an assignment that outlines business requirements, the document that usually contains these details is the Software Specification Document. This document serves as a blueprint for software developers, defining the features, functionalities, and constraints of the software to be developed. It is a key component in the software development lifecycle and often includes use cases, system features, interface descriptions, and performance requirements. In contrast, other options like the Product Development Plan, Marketing Strategy, or Project Scope Statement serve different purposes in a business context.