Cargo Features

[dependencies]
polygons = { version = "0.3.3", default-features = false, features = ["pyo3", "rayon"] }
default = pyo3, rayon

These default features are set whenever polygons is added without default-features = false somewhere in the dependency tree.

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

pyo3 default

Enables pyo3 ^0.20

rayon default