feat(ffi): Python bindings (UniFFI) - #228
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Adds a Python package for the ant-ffi UniFFI surface — the same compiled library that backs the Swift and Kotlin SDKs — giving Python the daemon-less, direct-network client (complementing antd-py, which needs a running antd). Generated with the in-crate uniffi-bindgen (no Rust changes); async Client methods surface as native asyncio `async def`. Contents (ffi/python/): - ant_ffi/__init__.py re-exports the generated surface; the generated module and native library are build outputs (gitignored), produced by build.sh - pyproject.toml / setup.py package metadata + platform-wheel tag machinery (py3-none-<platform>: one wheel per OS/arch, any Python 3) - tests/test_smoke.py offline: import + version + EVM address derivation - examples/upload_download_demo.py devnet upload/download round-trip - ffi/scripts/build.sh gains a Python binding-generation step alongside the C#/Kotlin/Swift steps Proven: the demo does a byte-identical file round-trip against a local devnet; the smoke tests pass offline. Cross-platform wheel building and PyPI publishing follow in a separate PR. Note: the distribution name `ant-ffi` is a deliberate placeholder — the import name `ant_ffi` is fixed by the UniFFI crate namespace regardless, so the final PyPI name is a one-line change. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Lockfile-only, semver-compatible bump that clears the cargo-audit failure on the ffi dependency tree. ruint <1.20.0 has incorrect overflow flags and truncated shift amounts in Uint shift operations (RUSTSEC-2026-0220); it comes in transitively via alloy-primitives. ant-ffi compiles unchanged and cargo audit passes (only the pre-existing allowed unmaintained warnings remain). Pre-existing on main — the advisory was published after the last green run, so it surfaced here because the audit job scans against the live advisory DB. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Adds a Python package for the
ant-ffiUniFFI surface — the same compiled library that backs the Swift and Kotlin SDKs — giving Python the daemon-less, direct-network client. This complementsantd-py, which requires a runningantddaemon.Generated with the in-crate
uniffi-bindgen(no Rust changes toant-ffi). AsyncClientmethods surface as native asyncioasync def.Contents (
ffi/python/)ant_ffi/__init__.py— re-exports the generated surface. The generated module (ant_ffi.py) and the native library are build outputs (gitignored), produced bybuild.sh.pyproject.toml/setup.py— package metadata + platform-wheel tag machinery (py3-none-<platform>: one wheel per OS/arch, valid for any Python 3, since the bindings are pure ctypes over a bundled native lib).tests/test_smoke.py— offline: import + version + EVM address derivation (mirrorsffi/csharp/AntFfi.Tests).examples/upload_download_demo.py— devnet upload/download round-trip.ffi/scripts/build.sh— gains a Python binding-generation step alongside the existing C#/Kotlin/Swift steps.Proven
examples/upload_download_demo.pydoes a byte-identical file round-trip against a local devnet (paid upload, progress callbacks, sha256 match).tests/test_smoke.pypasses offline.Follow-up
Cross-platform wheel building (manylinux / macOS universal2 / Windows) and PyPI publishing via Trusted Publishing land in a separate PR to keep this focused on the bindings themselves.
Naming
The distribution name
ant-ffiis a deliberate placeholder (documented inpyproject.toml). The import nameant_ffiis fixed by the UniFFI crate namespace regardless of the PyPI name, so settling the final name later is a one-line change.🤖 Generated with Claude Code