Runtime Validation Python Packages

gamma-pytools

Foundational tools for BCG X's data science packages.

daffy

Lightweight DataFrame validation decorators for Pandas, Polars, Modin, and PyArrow. No custom types required.

phx-filters

Opinionated schema validation for Python - chain type-safe filters with | like UNIX pipes

picounits

A Dynamic Runtime Type System for Dimensional Numerical Quantities.

importspy

Policy-as-code admission for Python modules and dependencies. Inspect before execution, enforce runtime and supply-chain policies, and produce evidence-backed ADMIT/DENY decisions.

talea

Data contracts, built for modern Python

typekeeper

One decorator that checks Python arguments against their type hints at runtime. No dependencies.

bearshape

Runtime shape and dtype checking for NumPy, JAX, PyTorch, and CuPy arrays, powered by beartype.