update to PyO3 0.22, add 3.13 support

Cargo.toml

@@ -27,7 +27,9 @@ include = [
 rust-version = "1.75"
 
 [dependencies]
-pyo3 = { version = "0.21.2", features = ["generate-import-lib", "num-bigint"] }
+# TODO it would be very nice to remove the "py-clone" feature as it can panic,
+# but needs a bit of work to make sure it's not used in the codebase
+pyo3 = { version = "0.22.0", features = ["generate-import-lib", "num-bigint", "py-clone"] }
 regex = "1.10.4"
 strum = { version = "0.25.0", features = ["derive"] }
 strum_macros = "0.26.1"
@@ -71,12 +73,12 @@ debug = true
 strip = false
 
 [dev-dependencies]
-pyo3 = { version = "0.21.2", features = ["auto-initialize"] }
+pyo3 = { version = "0.22.0", features = ["auto-initialize"] }
 
 [build-dependencies]
 version_check = "0.9.4"
 # used where logic has to be version/distribution specific, e.g. pypy
-pyo3-build-config = { version = "0.21.0" }
+pyo3-build-config = { version = "0.22.0" }
 
 [lints.clippy]
 dbg_macro = "warn"
@@ -108,3 +110,8 @@ too_many_lines = "allow"
 unnecessary_wraps = "allow"
 unused_self = "allow"
 used_underscore_binding = "allow"
+
+[patch.crates-io]
+pyo3 = { git = "https://github.com/pyo3/pyo3", branch = "release-0.22" }
+pyo3-build-config = { git = "https://github.com/pyo3/pyo3", branch = "release-0.22" }
+jiter = { git = "https://github.com/pydantic/jiter", branch = "dh/pyo3-0.22" }

src/argument_markers.rs

@@ -30,6 +30,7 @@ impl ArgsKwargs {
 #[pymethods]
 impl ArgsKwargs {
     #[new]
+    #[pyo3(signature = (args, kwargs = None))]
     fn py_new(py: Python, args: &Bound<'_, PyTuple>, kwargs: Option<&Bound<'_, PyDict>>) -> Self {
         Self {
             args: args.into_py(py),

src/errors/types.rs

@@ -459,8 +459,8 @@ static ERROR_TYPE_LOOKUP: GILOnceCell<AHashMap<String, ErrorType>> = GILOnceCell
 impl ErrorType {
     pub fn new_custom_error(py: Python, custom_error: PydanticCustomError) -> Self {
         Self::CustomError {
-            error_type: custom_error.error_type(),
-            message_template: custom_error.message_template(),
+            error_type: custom_error.error_type().to_owned(),
+            message_template: custom_error.message_template().to_owned(),
             context: custom_error.context(py),
         }
     }

src/errors/value_exception.rs

@@ -65,6 +65,7 @@ pub struct PydanticCustomError {
 #[pymethods]
 impl PydanticCustomError {
     #[new]
+    #[pyo3(signature = (error_type, message_template, context = None))]
     pub fn py_new(error_type: String, message_template: String, context: Option<Bound<'_, PyDict>>) -> Self {
         Self {
             error_type,
@@ -74,13 +75,13 @@ impl PydanticCustomError {
     }
 
     #[getter(r#type)]
-    pub fn error_type(&self) -> String {
-        self.error_type.clone()
+    pub fn error_type(&self) -> &str {
+        &self.error_type
     }
 
     #[getter]
-    pub fn message_template(&self) -> String {
-        self.message_template.clone()
+    pub fn message_template(&self) -> &str {
+        &self.message_template
     }
 
     #[getter]
@@ -143,6 +144,7 @@ pub struct PydanticKnownError {
 #[pymethods]
 impl PydanticKnownError {
     #[new]
+    #[pyo3(signature = (error_type, context=None))]
     pub fn py_new(py: Python, error_type: &str, context: Option<Bound<'_, PyDict>>) -> PyResult<Self> {
         let error_type = ErrorType::new(py, error_type, context)?;
         Ok(Self { error_type })