Does this skill help with sorting data?

Yes, it encourages the use of operator.itemgetter and operator.attrgetter, which are the standard, high-performance ways to specify sort keys in Python.

When is this skill most useful?

It is best for functional programming tasks, such as using functools.reduce, or when building environments for programming language interpreters and calculators.

Why use operator.add instead of a lambda?

Using operator.add is more readable, idiomatic, and often slightly more performant than lambda a, b: a + b because it avoids the overhead of creating a new function object.

Is it always better than using a lambda?

Not always. For simple, one-off inline expressions where the logic is unique, a standard expression or lambda may be clearer to the reader than a named operator.

Python Operator Module Patterns

Name: Python Operator Module Patterns
Author: jimmc414

byjimmc414

•

開発者ツール

Refactors functional Python operations to use the built-in operator module for cleaner, more readable code than anonymous lambdas.

This skill guides Claude to implement functional programming patterns using Python's native operator module, a technique popularized by Peter Norvig in projects like lis.py. It focuses on replacing verbose lambda functions with named equivalents for arithmetic, comparison, and attribute access, which is particularly useful when building interpreters, expression evaluators, or performing complex list reductions. By adopting these patterns, developers achieve more idiomatic and performant code that is easier to maintain and reason about.

主な機能

01Streamlines attribute and item access via attrgetter and itemgetter

02Optimizes reduce and map operations with op.add and op.mul

03Replaces verbose lambdas with named operator functions

04Promotes consistent signatures for binary operations

051 GitHub stars

06Simplifies interpreter environment mapping for symbol-to-function lookups

ユースケース

01Creating clean, reusable key functions for sorting and grouping collections

02Building a custom Lisp-style interpreter or expression evaluator

03Mapping string symbols to mathematical operations in a lookup dictionary

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jimmc414/claude-code-plugin-marketplace use-operator-module

For use in Claude.ai and ChatGPT

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