Python Design Patterns

“Python Design Patterns” explores the fundamental principles and best practices for designing efficient and maintainable Python code. It delves into common patterns and strategies used in Python programming to solve recurring design problems effectively. By leveraging the concepts discussed in the referenced documents, the source provides insights into optimizing Python code for speed, memory management, and productivity. Readers can expect to gain a deeper understanding of how to structure their Python projects, identify bottlenecks in development and runtime, and enhance overall code quality through the application of design patterns.

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The Builder Pattern

A “Creational Pattern” from the Gang of Four book Verdict The full-fledged Builder Pattern as imagined by the Gang of Four arranged for a single series of method calls to power the creation of several...

Refactoring by Martin Fowler

Python Design Patterns

Amazon Affiliate link Amazon raw link Martin Fowler’s Refactoring: Improving the Design of Existing Code is more heavy focused on object oriented programming than will typically be useful for a Python...

The Factory Method Pattern

Python Design Patterns

A “Creational Pattern” from the Gang of Four book Verdict The “Factory Method” pattern is a poor fit for Python. It was designed for underpowered programming languages where classes and functions can’...

The Iterator Pattern

Python Design Patterns

A “Behavioral Pattern” from the Gang of Four book Verdict Python supports the Iterator Pattern at the most fundamental level available to a programming language: it’s built into Python’s syntax. But t...

Gang of Four book

Python Design Patterns

Amazon Affiliate link Amazon raw link It can be hard to remember, but object oriented programming was all the rage back in the roaring 1990s. Instead of talking about the power of first-class function...

The Prototype Pattern

Python Design Patterns

A “Creational Pattern” from the Gang of Four book Verdict The Prototype pattern isn’t necessary in a language powerful enough to support first-class functions and classes. It is almost embarrassing ho...

The Singleton Pattern

Python Design Patterns

A “Creational Pattern” from the Gang of Four book Verdict Python programmers almost never implement the Singleton Pattern as described in the Gang of Four book , whose Singleton class forbids normal i...

The Sentinel Object Pattern

Python Design Patterns

A Python variation on the traditional Sentinel Value pattern Verdict The Sentinel Object pattern is a standard Pythonic approach that’s used both in the Standard Library and beyond. The pattern most o...

The Composition Over Inheritance Principle

Python Design Patterns

A principle from the Gang of Four book Verdict In Python as in other programming languages, this grand principle encourages software architects to escape from Object Orientation and enjoy the simpler ...

The Flyweight Pattern

Python Design Patterns

A “Structural Pattern” from the Gang of Four book Verdict Flyweight objects are such a perfect fit for Python that the language itself uses the pattern for such popular values as identifiers, some int...

The Composite Pattern

Python Design Patterns

A “Structural Pattern” from the Gang of Four book Verdict The Composite Pattern can bring symmetry not only to object hierarchies in Python, but even to hierarchies exposed by low-level system calls a...

The Global Object Pattern

Python Design Patterns

Verdict Like several other scripting languages, Python parses the outer level of each module as normal code. Un-indented assignment statements, expressions, and even loops and conditionals will execut...