build: use src/ dir for python

.gitignore

@@ -1,4 +1,5 @@
-/target
+# rust compilation
+rust/target
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

README.md

@@ -1,3 +1,5 @@
 Drop-in replacement for the [pyliftover](https://github.com/konstantint/pyliftover) tool. Name forthcoming.
 
 Status: very, very preliminary.
+
+## Usage

pyproject.toml

@@ -51,10 +51,10 @@ build-backend = "maturin"
 [tool.maturin]
 features = ["pyo3/extension-module"]
 module-name = "chainlifter._core"
-python-source = "python"
+python-source = "src"
 
 [tool.ruff]
-src = ["python"]
+src = ["src"]
 # pycodestyle (E, W)
 # Pyflakes (F)
 # flake8-annotations (ANN)

Cargo.toml → rust/Cargo.toml

@@ -3,12 +3,14 @@ name = "chainlifter"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [lib]
 name = "chainlifter"
 crate-type = ["cdylib"]
 
 [dependencies]
 chainfile = "0.2.1"
-pyo3 = "0.19.0"
 directories = "5.0"
+
+[dependencies.pyo3]
+version = "0.20.0"
+features = ["abi3-py38"]

src/lib.rs → rust/src/lib.rs

@@ -95,7 +95,8 @@ impl ChainLifter {
 
 /// ChainLifter Python module. Collect Python-facing methods.
 #[pymodule]
-fn _chainlifter(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
+#[pyo3(name = "_core")]
+fn chainlifter(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
     m.add_class::<ChainLifter>()?;
     Ok(())
 }