Attribute Macro pyo3_macros::pyfunction
source · #[pyfunction]
Expand description
A proc macro used to expose Rust functions to Python.
Functions annotated with #[pyfunction]
can also be annotated with the following #[pyo3]
options:
Annotation | Description |
---|---|
#[pyo3(name = "...")] | Defines the name of the function in Python. |
#[pyo3(text_signature = "...")] | Defines the __text_signature__ attribute of the function in Python. |
#[pyo3(pass_module)] | Passes the module containing the function as a &PyModule first argument to the function. |
For more on exposing functions see the function section of the guide.
Due to technical limitations on how #[pyfunction]
is implemented, a function marked
#[pyfunction]
cannot have a module with the same name in the same scope. (The
#[pyfunction]
implementation generates a hidden module with the same name containing
metadata about the function, which is used by wrap_pyfunction!
).