{"adoption": {"forks": 165, "observed_at": "2026-08-28T04:04:52.208324+00:00", "stars": 1488}, "canonical_url": "https://ross.abutalabs.com/products/jep", "card": {"archived": false, "artifact_type": "library", "description": "Embed Python in Java", "domain": ["developer-tools", "programming-languages", "cross-platform"], "enriched": true, "function": ["interpreter", "sdk", "concurrency"], "health_score": 99, "homepage": null, "language": "C", "license": "NOASSERTION", "license_family": "other", "maturity": "active", "member_repos": ["ninia/jep"], "name": "ninia/jep", "platform": ["jvm", "python", "cross-platform", "windows"], "pushed_at": "2026-08-15T15:32:26+00:00", "repo": "ninia/jep", "stars": 1488, "tags": ["jni", "cpython", "embedding", "jvm", "interop", "linux", "macos"], "topics": ["c", "java", "python", "cpython", "jni"], "urls": [], "use_cases": ["call python code from a java application", "embed cpython in the jvm via jni", "script java applications with python without recompiling", "use python libraries like numpy from java", "run multiple sandboxed python sub-interpreters in java", "bridge java and python data types"], "what_it_is": "Jep is a library that embeds CPython in the Java Virtual Machine through JNI, allowing Java applications to run Python code and use Python modules natively. It supports multiple sub-interpreters, an interactive console, and NumPy interop with Java primitive arrays.", "when_to_avoid": ["you only need to run Python as a separate process or microservice", "you want pure-Java Python integration without native dependencies", "your project requires GraalVM or Jython-style pure-JVM interoperability"], "when_to_choose": ["you need the real CPython interpreter inside a Java app for speed and module compatibility", "you want to script or extend established Java code with Python", "you need NumPy array interop with Java primitive arrays"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/jep", "repo": "ninia/jep", "role": "main", "score": 90}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:04:52.208324+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T04:33:45.283247+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "2b45db76ca90598ae2935eef1cf4e575ba6b4b45f7f75bb22ba264da32782363", "fetched_at": "2026-08-28T04:04:52.208324+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ninia/jep"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 97, "longevity": 100, "rhythm": 74}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 5676, "days_push": 18, "days_rel": 18, "gap_med": 168.0, "n_releases_24m": 5}, "score": 90, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}