SPy: an interpreter and a compiler for a statically typed variant of Python
SPy is a statically typed variant of Python that combines an interpreter and a compiler to enhance performance while maintaining dynamic features. It currently has limited documentation, but resources are available through blog posts and upcoming talks at PyCon events. Users can explore SPy in a browser or set it up locally using various installation methods, with specific dependencies required for each method.
- ▪SPy is designed to be statically compilable while retaining dynamic features of Python.
- ▪The only supported installation method currently is an editable install from the Git repository.
- ▪Users can execute programs in interpreted mode or compile them to native executables.
Lobsters files mainly under programming. We currently carry 187 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/spylang/spy |
| Publication time | Sat, 23 May 2026 00:51:38 -0500 |
| Retrieval time | 2026-05-23T06:07:24.938Z |
| Last seen | 2026-05-23T06:07:24.938Z |
| 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 | A1k0jl8mcQX2 |
| 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 |
Rights status (four layers)
WeSearch handling by dimension
| 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.
Opening excerpt (first ~120 words) tap to expand
SPy Discord server Community calls: Monthly on the first Wednesday of the month at 17:30 CET (Europe time). Google calendar and Discord Event What is SPy? TL;DR: SPy is a variant of Python specifically designed to be statically compilable while retaining a lot of the "useful" dynamic parts of Python. It consists of: an interpreter (so that you can have the usual nice "development experience" that you have in Python) a compiler (for speed) The documentation is very scarce at the moment, but the best source to understand the ideas behind SPy are: blog post Inside SPy, part 1: Motivations and Goals. blog post Inside SPy, part 2: Language semantics. PyCon Italy 2025 talk: slides and recording. PyCon US 2024 talk: slides and recording. Additional info can be found on: Antonio Cuni's blog.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.