handle #[pyo3(from_py_with = "")]
in #[setter]
methods (#3995)
* handle `#[pyo3(from_py_with = "")]` in `#[setter]` methods * add newsfragment
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newsfragments/3995.fixed.md
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1
newsfragments/3995.fixed.md
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@ -0,0 +1 @@
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handle `#[pyo3(from_py_with = "")]` in `#[setter]` methods
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@ -11,7 +11,7 @@ use crate::{
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};
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use crate::{quotes, utils};
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use proc_macro2::{Span, TokenStream};
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use quote::{format_ident, quote, ToTokens};
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use quote::{format_ident, quote, quote_spanned, ToTokens};
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use syn::{ext::IdentExt, spanned::Spanned, Result};
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/// Generated code for a single pymethod item.
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@ -586,6 +586,34 @@ pub fn impl_py_setter_def(
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}
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};
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let extract = if let PropertyType::Function { spec, .. } = &property_type {
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Some(spec)
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} else {
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None
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}
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.and_then(|spec| {
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let (_, args) = split_off_python_arg(&spec.signature.arguments);
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let value_arg = &args[0];
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let from_py_with = &value_arg.attrs.from_py_with.as_ref()?.value;
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let name = value_arg.name.to_string();
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Some(quote_spanned! { from_py_with.span() =>
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let e = #pyo3_path::impl_::deprecations::GilRefs::new();
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let from_py_with = #pyo3_path::impl_::deprecations::inspect_fn(#from_py_with, &e);
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e.from_py_with_arg();
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let _val = #pyo3_path::impl_::extract_argument::from_py_with(
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&_value.into(),
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#name,
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from_py_with as fn(_) -> _,
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)?;
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})
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})
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.unwrap_or_else(|| {
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quote! {
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let _val = #pyo3_path::FromPyObject::extract_bound(_value.into())?;
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}
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});
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let mut cfg_attrs = TokenStream::new();
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if let PropertyType::Descriptor { field, .. } = &property_type {
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for attr in field
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@ -611,7 +639,7 @@ pub fn impl_py_setter_def(
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.ok_or_else(|| {
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#pyo3_path::exceptions::PyAttributeError::new_err("can't delete attribute")
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})?;
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let _val = #pyo3_path::FromPyObject::extract_bound(_value.into())?;
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#extract
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#init_holders
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let result = #setter_impl;
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#check_gil_refs
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@ -41,12 +41,21 @@ impl ClassWithProperties {
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self.num = value;
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}
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#[setter]
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fn set_from_len(&mut self, #[pyo3(from_py_with = "extract_len")] value: i32) {
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self.num = value;
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}
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#[getter]
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fn get_data_list<'py>(&self, py: Python<'py>) -> Bound<'py, PyList> {
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PyList::new_bound(py, [self.num])
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}
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}
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fn extract_len(any: &Bound<'_, PyAny>) -> PyResult<i32> {
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any.len().map(|len| len as i32)
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}
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#[test]
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fn class_with_properties() {
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Python::with_gil(|py| {
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@ -64,6 +73,9 @@ fn class_with_properties() {
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py_run!(py, inst, "assert inst.get_num() == inst.unwrapped == 42");
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py_run!(py, inst, "assert inst.data_list == [42]");
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py_run!(py, inst, "inst.from_len = [0, 0, 0]");
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py_run!(py, inst, "assert inst.get_num() == 3");
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let d = [("C", py.get_type_bound::<ClassWithProperties>())].into_py_dict_bound(py);
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py_assert!(py, *d, "C.DATA.__doc__ == 'a getter for data'");
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});
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@ -26,6 +26,12 @@ impl MyClass {
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#[staticmethod]
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fn static_method_gil_ref(_any: &PyAny) {}
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#[setter]
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fn set_foo_gil_ref(&self, #[pyo3(from_py_with = "extract_gil_ref")] _value: i32) {}
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#[setter]
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fn set_foo_bound(&self, #[pyo3(from_py_with = "extract_bound")] _value: i32) {}
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}
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fn main() {}
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@ -34,70 +34,76 @@ error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`
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28 | fn static_method_gil_ref(_any: &PyAny) {}
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| ^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
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--> tests/ui/deprecations.rs:41:43
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:31:53
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41 | fn pyfunction_with_module_gil_ref(module: &PyModule) -> PyResult<&str> {
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31 | fn set_foo_gil_ref(&self, #[pyo3(from_py_with = "extract_gil_ref")] _value: i32) {}
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| ^^^^^^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
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--> tests/ui/deprecations.rs:47:43
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47 | fn pyfunction_with_module_gil_ref(module: &PyModule) -> PyResult<&str> {
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| ^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
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--> tests/ui/deprecations.rs:51:19
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--> tests/ui/deprecations.rs:57:19
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51 | fn module_gil_ref(m: &PyModule) -> PyResult<()> {
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57 | fn module_gil_ref(m: &PyModule) -> PyResult<()> {
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| ^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
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--> tests/ui/deprecations.rs:57:57
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--> tests/ui/deprecations.rs:63:57
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57 | fn module_gil_ref_with_explicit_py_arg(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
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63 | fn module_gil_ref_with_explicit_py_arg(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
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| ^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:90:27
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--> tests/ui/deprecations.rs:96:27
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90 | #[pyo3(from_py_with = "extract_gil_ref")] _gil_ref: i32,
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96 | #[pyo3(from_py_with = "extract_gil_ref")] _gil_ref: i32,
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| ^^^^^^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
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--> tests/ui/deprecations.rs:96:29
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96 | fn pyfunction_gil_ref(_any: &PyAny) {}
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| ^
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--> tests/ui/deprecations.rs:102:29
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102 | fn pyfunction_gil_ref(_any: &PyAny) {}
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| ^
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error: use of deprecated method `pyo3::deprecations::OptionGilRefs::<std::option::Option<T>>::function_arg`: use `Option<&Bound<'_, T>>` instead for this function argument
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--> tests/ui/deprecations.rs:99:36
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99 | fn pyfunction_option_gil_ref(_any: Option<&PyAny>) {}
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| ^^^^^^
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--> tests/ui/deprecations.rs:105:36
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105 | fn pyfunction_option_gil_ref(_any: Option<&PyAny>) {}
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| ^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:106:27
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--> tests/ui/deprecations.rs:112:27
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106 | #[pyo3(from_py_with = "PyAny::len", item("my_object"))]
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112 | #[pyo3(from_py_with = "PyAny::len", item("my_object"))]
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| ^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:116:27
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--> tests/ui/deprecations.rs:122:27
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116 | #[pyo3(from_py_with = "PyAny::len")] usize,
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122 | #[pyo3(from_py_with = "PyAny::len")] usize,
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| ^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:122:31
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--> tests/ui/deprecations.rs:128:31
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122 | Zip(#[pyo3(from_py_with = "extract_gil_ref")] i32),
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128 | Zip(#[pyo3(from_py_with = "extract_gil_ref")] i32),
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| ^^^^^^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
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--> tests/ui/deprecations.rs:129:27
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--> tests/ui/deprecations.rs:135:27
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129 | #[pyo3(from_py_with = "extract_gil_ref")]
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135 | #[pyo3(from_py_with = "extract_gil_ref")]
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| ^^^^^^^^^^^^^^^^^
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error: use of deprecated method `pyo3::deprecations::GilRefs::<pyo3::Python<'_>>::is_python`: use `wrap_pyfunction_bound!` instead
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--> tests/ui/deprecations.rs:142:13
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--> tests/ui/deprecations.rs:148:13
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142 | let _ = wrap_pyfunction!(double, py);
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148 | let _ = wrap_pyfunction!(double, py);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: this error originates in the macro `wrap_pyfunction` (in Nightly builds, run with -Z macro-backtrace for more info)
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