mypyc/mypyc

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2019 stars · 49 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Mypyc is a compiler that translates type-annotated Python modules into fast C extensions, using mypy for type checking and inference. It powers a 4x speedup of mypy itself and supports standard Python syntax with full stdlib and third-party library access.

Use cases

• speed up type-annotated python code
• compile python modules to c extensions
• make mypy run faster
• optimize hot paths in python without rewriting in c
• ahead-of-time compile a python codebase

When to choose

• your codebase already uses python type hints and needs better performance
• you want clean standard python syntax instead of cython's non-standard constructs
• you need static and runtime type checking with fast compiled output

When to avoid

• your code is untyped or relies heavily on dynamic python features
• you need production-grade stability without careful testing
• you need maximum compatibility with all python semantics

Facets

library · maturity experimental

compiler type-system developer-tools compilers programming-languages performance developer-tools python cpp cross-platform python-to-c type-annotations ahead-of-time-compilation mypy performance-optimization

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mypyc/mypyc")