Cargo Features

xyz-parse has no features set by default.

[dependencies]
xyz-parse = { version = "0.1.3", features = ["pyo3-lib"] }
pyo3-lib = pyo3

Enables abi3-py37 and extension-module of pyo3

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 pyo3-lib?