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Merged
youknowone merged 4 commits into from
Jul 9, 2026
Merged

Add more build-info functions to c-api #8216

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293514d
Add more build-info functions to c-api
bschoenmaeckers Jul 6, 2026
7881dfd
Use CStr for COMPILER/COPYRIGHT/PLATFORM
bschoenmaeckers Jul 7, 2026
287190d
Update crates/vm/src/builtins/str.rs
bschoenmaeckers Jul 7, 2026
b5fd405
Review
bschoenmaeckers Jul 7, 2026
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26 changes: 25 additions & 1 deletion crates/capi/src/pylifecycle.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,8 @@ use crate::pystate::ensure_thread_has_vm_attached;
use alloc::ffi::CString;
use core::ffi::{c_char, c_int, c_ulong};
use rustpython_vm::common::rc::PyRc;
use rustpython_vm::version::{MAJOR, MICRO, MINOR, VERSION_HEX};
use rustpython_vm::stdlib::sys;
use rustpython_vm::version::{MAJOR, MICRO, MINOR, RUSTPYTHON_BUILD_INFO, VERSION_HEX};
use rustpython_vm::vm::thread::ThreadedVirtualMachine;
use rustpython_vm::{Context, Interpreter};
use std::sync::{LazyLock, Mutex};
Expand Down Expand Up @@ -80,6 +81,29 @@ pub extern "C" fn Py_GetVersion() -> *const c_char {
VERSION.as_ptr()
}

#[unsafe(no_mangle)]
pub extern "C" fn Py_GetBuildInfo() -> *const c_char {
static BUILD_INFO: LazyLock<CString> = LazyLock::new(|| {
CString::new(RUSTPYTHON_BUILD_INFO).expect("build info must not contain interior NULs")
});
BUILD_INFO.as_ptr()
}

#[unsafe(no_mangle)]
pub extern "C" fn Py_GetCompiler() -> *const c_char {
c"[RUST]".as_ptr()
}

#[unsafe(no_mangle)]
pub extern "C" fn Py_GetCopyright() -> *const c_char {
sys::COPYRIGHT.as_ptr()
}

#[unsafe(no_mangle)]
pub extern "C" fn Py_GetPlatform() -> *const c_char {
sys::PLATFORM.as_ptr()
}

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#[cfg(test)]
mod tests {
use pyo3::prelude::*;
Expand Down
8 changes: 8 additions & 0 deletions crates/vm/src/builtins/str.rs
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Expand Up @@ -35,6 +35,7 @@ use crate::{
use alloc::{borrow::Cow, fmt};
use ascii::{AsciiChar, AsciiStr, AsciiString};
use bstr::ByteSlice;
use core::ffi::CStr;
use core::{char, mem, ops::Range};
use itertools::Itertools;
use num_traits::ToPrimitive;
Expand Down Expand Up @@ -1868,6 +1869,13 @@ impl ToPyObject for &String {
}
}

impl ToPyObject for &CStr {
fn to_pyobject(self, vm: &VirtualMachine) -> PyObjectRef {
let s = self.to_str().expect("ToPyObject expects utf-8 CStr");
vm.ctx.new_str(s).into()
}
}

impl ToPyObject for &Wtf8 {
fn to_pyobject(self, vm: &VirtualMachine) -> PyObjectRef {
vm.ctx.new_str(self).into()
Expand Down
22 changes: 12 additions & 10 deletions crates/vm/src/stdlib/sys.rs
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Expand Up @@ -4,6 +4,7 @@ use crate::{Py, PyPayload, PyResult, VirtualMachine, builtins::PyModule, convert

#[cfg(all(not(feature = "host_env"), feature = "stdio"))]
pub(crate) use sys::SandboxStdio;
pub use sys::{COPYRIGHT, PLATFORM};
pub(crate) use sys::{DOC, MAXSIZE, RUST_MULTIARCH, UnraisableHookArgsData, module_def, multiarch};

#[pymodule(name = "_jit")]
Expand Down Expand Up @@ -50,6 +51,7 @@ pub mod sys {
version,
vm::{Settings, VirtualMachine},
};
use core::ffi::CStr;
use core::sync::atomic::Ordering;
use num_traits::ToPrimitive;
use std::{
Expand Down Expand Up @@ -222,7 +224,7 @@ pub mod sys {
#[pyattr(name = "api_version")]
const API_VERSION: u32 = 0x0; // what C api?
#[pyattr(name = "copyright")]
const COPYRIGHT: &str = "Copyright (c) 2019 RustPython Team";
pub const COPYRIGHT: &CStr = c"Copyright (c) 2019 RustPython Team";
#[pyattr(name = "float_repr_style")]
const FLOAT_REPR_STYLE: &str = "short";
#[pyattr(name = "_framework")]
Expand All @@ -235,14 +237,14 @@ pub mod sys {
const MAXUNICODE: u32 = core::char::MAX as u32;

#[pyattr(name = "platform")]
pub const PLATFORM: &str = cfg_select! {
target_os = "linux" => "linux",
target_os = "android" => "android",
target_os = "macos" => "darwin",
target_os = "ios" => "ios",
windows => "win32",
target_os = "wasi" => "wasi",
_ => "unknown"
pub const PLATFORM: &CStr = cfg_select! {
target_os = "linux" => c"linux",
target_os = "android" => c"android",
target_os = "macos" => c"darwin",
target_os = "ios" => c"ios",
windows => c"win32",
target_os = "wasi" => c"wasi",
_ => c"unknown"
};

#[pyattr(name = "ps1")]
Expand Down Expand Up @@ -1911,7 +1913,7 @@ pub(crate) fn sysconfigdata_name() -> String {
format!(
"_sysconfigdata_{}_{}_{}",
sys::ABIFLAGS,
sys::PLATFORM,
sys::PLATFORM.to_string_lossy(),
sys::multiarch()
)
}
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