A Python module packages related functionality into a reusable namespace. It helps developers move beyond small scripts toward larger applications whose parts remain understandable and maintainable. section 1.0 section 7.4
Modules provide a practical boundary for separating functional domains. Instead of placing authentication, database access, user management, content handling, and URL handlers in one file, an application can organize each area into a focused module. section 7.3 section 7.4
Modules support application architecture by:
- Creating namespaces that group related functionality. section 7.3
- Letting developers work within one functional domain at a time. section 7.4
- Reducing the mental demand and naming problems caused by a single large application file. section 7.3
- Providing library functionality that larger applications can access through interfaces, including Python’s standard modules. section 1.2.2
