# Build example's file To build `demo.wasm` use rustc (nightly) for wasm32 target with debug information: ``` rustc +nightly --target=wasm32-unknown-unknown demo.rs --crate-type=cdylib ``` # Run example Point path to the built `wasmtime_py` library location when running python, e.g. ``` PYTHONPATH=../../target/debug python3 run.py ```