Python functools: lru_cache, partial, reduce, and wraps
The article discusses the Python functools module, highlighting its utilities such as lru_cache, partial, reduce, and wraps. These tools help improve code performance and reduce boilerplate. The author provides examples of how to use these functions effectively in Python programming.
- ▪The functools module is a part of Python's standard library that provides higher-order function utilities.
- ▪lru_cache is a decorator that caches the results of function calls to improve performance.
- ▪functools.partial allows the creation of a new callable with some arguments pre-filled, simplifying function calls.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/german_yamil_e021eef8710d/python-functools-lrucache-partial-reduce-and-wraps-mfi |
| Publication time | Tue, 19 May 2026 01:36:22 +0000 |
| Retrieval time | 2026-05-19T02:04:57.097Z |
| Last seen | 2026-05-19T02:04:57.097Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | k6vlcmhSsXCw |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3873577) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } German Yamil Posted on May 19 Python functools: lru_cache, partial, reduce, and wraps #python #codenewbie #beginners #tutorial Python Essentials (19 Part Series) 1 Python subprocess.run() Deep Dive: Isolation, Timeouts, and Captured Output 2 How to Schedule Python Scripts with Cron: A Beginner's Complete Guide ... 15 more parts...
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