xmtp-bindings 0.1.8

Python bindings for libxmtp (XMTP v3)

xmtp-bindings

Python bindings for libxmtp (XMTP v3) generated via UniFFI.

Install-time build

The Python package now builds the libxmtp native library during install. This requires:

• Rust toolchain (cargo)
• git

Environment overrides:

• XMTP_LIBXMTP_PATH: use an existing libxmtp checkout instead of cloning
• XMTP_LIBXMTP_REF: git ref (tag/branch/commit) to checkout
• XMTP_LIBXMTP_REPO: override the libxmtp git URL
• XMTP_BINDINGS_SKIP_BUILD=1: skip native build (requires a prebuilt libxmtpv3 next to xmtpv3.py)
• XMTP_BINDINGS_FORCE_BUILD=1: rebuild even if a native library already exists

If XMTP_LIBXMTP_REF is not set, builds default to the pinned ref stored in src/xmtp_bindings/libxmtp.ref.

During builds, the UniFFI Python bindings (xmtpv3.py) are regenerated from the same libxmtp checkout used to build the native library to keep the wrapper and shared library in sync.

Manual build

These bindings are generated from the libxmtp Rust workspace. To regenerate manually:

# Clone libxmtp into .deps if needed
mkdir -p .deps
[ -d .deps/libxmtp ] || git clone --depth 1 https://github.com/xmtp/libxmtp .deps/libxmtp

# Build the native library
cd .deps/libxmtp
cargo build -p xmtpv3 --release

# Generate Python bindings
cd bindings/mobile
cargo run --bin ffi-uniffi-bindgen --release --features uniffi/cli generate \
  --library ../../target/release/libxmtpv3.so \
  --out-dir ../../../../bindings/python/src/xmtp_bindings \
  --language python

# Copy the shared library next to the generated module
cp ../../target/release/libxmtpv3.so ../../../../bindings/python/src/xmtp_bindings/

Notes

• The generated xmtpv3.py expects libxmtpv3 to sit next to it.
• This package is intended to be consumed by the higher-level python-sdk.