Configuration used by PyO3 for conditional support of varying Python versions.
The only public API currently exposed is [use_pyo3_cfgs], which is intended to be used in
build scripts to add a standard set of #[cfg] attributes for handling multiple Python
versions.
The full list of attributes added are the following:
| Flag | Description |
|---|---|
#[cfg(Py_3_6)], #[cfg(Py_3_7)], #[cfg(Py_3_8)], #[cfg(Py_3_9)], #[cfg(Py_3_10)] |
These attributes mark code only for a given Python version and up. For example, #[cfg(Py_3_6)] marks code which can run on Python 3.6 and newer. |
#[cfg(Py_LIMITED_API)] |
This marks code which is run when compiling with PyO3's abi3 feature enabled. |
#[cfg(PyPy)] |
This marks code which is run when compiling for PyPy. |
For examples of how to use these attributes, see PyO3's guide.