nedbat/byterun
A Python implementation of a Python bytecode runner observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4979
- days_rel: n/a
- days_push: 772
- n_releases_24m: 0
Adoption not part of the score
1360 stars · 272 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Byterun is a pure-Python implementation of a Python bytecode execution virtual machine. It was created to understand CPython bytecodes, originally to help fix branch coverage bugs in coverage.py.
Use cases
- understand how python bytecode executes
- run python bytecode in pure python
- learn how a python interpreter works
- debug coverage measurement of branches
- experiment with a python virtual machine implementation
When to choose
- you want to study or teach how CPython's bytecode VM works
- you need a pure-Python interpreter for bytecode analysis or experimentation
When to avoid
- you need a fast, production-grade Python runtime
- you need full compatibility with the latest CPython bytecode
Facets
library · maturity maintenance
interpreter parser developer-tools programming-languages compilers developer-tools education python cross-platform bytecode virtual-machine python-internals educational
1 source
- readme: https://github.com/nedbat/byterun · fetched 2026-08-28 · 42e5ccd3e0a4
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| nedbat/byterun | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem