In software engineering, the module pattern is a design pattern used to implement the concept of software modules, defined by modular programming, in a programming language with incomplete direct support for the concept. In software engineering, the module pattern is a design pattern used to implement the concept of software modules, defined by modular programming, in a programming language with incomplete direct support for the concept. This pattern can be implemented in several ways depending on the host programming language, such as the singleton design pattern, object-oriented static members in a class and procedural global functions. In Python, the pattern is built into the language, and each .py file is automatically a module. The module software design pattern provides the features and syntactic structure defined by the modular programming paradigm to programming languages that have incomplete support for the concept. In software development, source code can be organized into components that accomplish a particular function or contain everything necessary to accomplish a particular task. Modular programming is one of those approaches.