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fix: ignore develop artifacts for all binding types during build#3026

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messense merged 1 commit intoPyO3:mainfrom
messense:fix/ignore-develop-artifacts-all-bindings
Feb 21, 2026
Merged

fix: ignore develop artifacts for all binding types during build#3026
messense merged 1 commit intoPyO3:mainfrom
messense:fix/ignore-develop-artifacts-all-bindings

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maturin build now correctly skips native libraries left by maturin develop for CFFI and UniFFI bindings, which use a lib prefix (e.g. libfoo.so, libfoo.dylib). Previously only PyO3-style names (e.g. foo.abi3.so, foo.pyd) were matched.

Fixes #2656

maturin build now correctly skips native libraries left by maturin develop
for CFFI and UniFFI bindings, which use a `lib` prefix (e.g. libfoo.so,
libfoo.dylib). Previously only PyO3-style names (e.g. foo.abi3.so, foo.pyd)
were matched.

Extract the check into a documented is_develop_native_library() helper.

Fixes PyO3#2656
@messense messense enabled auto-merge (squash) February 21, 2026 03:46
@messense messense merged commit f13cd43 into PyO3:main Feb 21, 2026
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@messense messense deleted the fix/ignore-develop-artifacts-all-bindings branch February 21, 2026 04:27
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Feb 22, 2026
## 1.12.4

* Upgrade memmap2 version ([#3021](PyO3/maturin#3021))
* Fix: platform tag detection for Android targets ([#3023](PyO3/maturin#3023))
* Fix: only ignore maturin-generated native libraries on all platforms ([#3025](PyO3/maturin#3025))
* Fix: ignore develop artifacts for all binding types during build ([#3026](PyO3/maturin#3026))
* Feat: support conditional cargo features based on Python version ([#3027](PyO3/maturin#3027))

## 1.12.3

* Ci: set crt-static for riscv64 and loongarch64 musl targets ([#3009](PyO3/maturin#3009))
* Fix: support `maturin develop` on Windows ARM with x86 Python ([#3011](PyO3/maturin#3011))
* Fix: exclude `external_packages` bindings from uniffi wheels ([#3013](PyO3/maturin#3013))
* Update cargo-zigbuild to 0.22.1 ([#3015](PyO3/maturin#3015))
* Feat: build wheels from sdist with `--sdist` flag ([#3014](PyO3/maturin#3014))
* Feat: add `include-import-lib` option to bundle Windows import libraries in wheels ([#3017](PyO3/maturin#3017))
* Fix: auditwheel external lib check respects musllinux and reports symbol versions ([#3019](PyO3/maturin#3019))
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"Failed to write to mylib\_mylib.pyd" in multi-crate workspace

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