enchanter-golem 0.1.0

Fast, safe, loud expression evaluation — a Pythonic skin over the Go expr-lang core.

enchanter-golem

Fast, safe, loud expression evaluation for Python — a thin Pythonic skin over a compiled Go core (expr-lang/expr). Evaluate expressions like 2 + 3 * (x - 1) against named variables; a typo'd variable is a compile error, not a silent 0.

import golem

e = golem.Engine(variables={"x": 0.0})
print(e.eval("2 + 3 * (x - 1)", {"x": 5}))   # => 14

Install

pip install enchanter-golem        # the import is `import golem`

Prebuilt wheels embed the compiled Go core, so there is no Go toolchain and no C compiler to install. Evaluation runs in Go; Python is just the interface.

Why

• Loud — an undeclared or typo'd variable fails at compile time with a "did you mean" hint, instead of silently becoming 0.
• Safe — a sandboxed function/math allowlist, cost + timeout guards, and no silent NaN/Inf.
• One source of truth — the same Go core powers the Go API, so Python and Go agree.

Full documentation, the Go API, and the architecture diagrams live in the project README: https://github.com/enchanter-ai/golem

MIT © Enchanter Labs.