- "source": "import os, sys, subprocess\n\nIN_COLAB = \"google.colab\" in sys.modules\n\n# Install coordinode-embedded in Colab only (requires Rust build).\nif IN_COLAB and not os.environ.get(\"COORDINODE_ADDR\"):\n # Install Rust toolchain via rustup (https://rustup.rs).\n # Colab's apt packages ship rustc ≤1.75, which cannot build coordinode-embedded\n # (requires Rust ≥1.80 for maturin/pyo3). apt-get is not a viable alternative here.\n # Download the installer to a temp file and execute it explicitly — this avoids\n # piping remote content directly into a shell while maintaining HTTPS/TLS security\n # through Python's default ssl context (cert-verified, TLS 1.2+).\n # SHA256 pinning of rustup-init is intentionally omitted: rustup.rs does not\n # publish a stable per-release checksum for sh.rustup.rs itself (only for\n # platform-specific rustup-init binaries), and pinning a hash here would break\n # silently on every rustup release. The HTTPS/TLS verification + temp-file\n # execution (not piped to shell) is the rustup team's recommended trust model.\n # Skip embedded build if COORDINODE_ADDR is set — user has a gRPC server,\n # no need to spend 5+ minutes building coordinode-embedded from source.\n # The `IN_COLAB` check already guards against local/server environments.\n import ssl as _ssl, tempfile as _tmp, urllib.request as _ur\n\n _ctx = _ssl.create_default_context()\n with _tmp.NamedTemporaryFile(mode=\"wb\", suffix=\".sh\", delete=False) as _f:\n with _ur.urlopen(\"https://sh.rustup.rs\", context=_ctx, timeout=30) as _r:\n _f.write(_r.read())\n _rustup_path = _f.name\n try:\n subprocess.run([\"/bin/sh\", _rustup_path, \"-s\", \"--\", \"-y\", \"-q\"], check=True, timeout=300)\n finally:\n os.unlink(_rustup_path)\n # Add cargo to PATH so maturin/pip can find it.\n _cargo_bin = os.path.expanduser(\"~/.cargo/bin\")\n os.environ[\"PATH\"] = f\"{_cargo_bin}{os.pathsep}{os.environ.get('PATH', '')}\"\n subprocess.run([sys.executable, \"-m\", \"pip\", \"install\", \"-q\", \"maturin\"], check=True, timeout=300)\n subprocess.run(\n [\n sys.executable,\n \"-m\",\n \"pip\",\n \"install\",\n \"-q\",\n \"git+https://github.com/structured-world/coordinode-python.git@bd8d0dc#subdirectory=coordinode-embedded\",\n ],\n check=True,\n timeout=600,\n )\n\nsubprocess.run(\n [\n sys.executable,\n \"-m\",\n \"pip\",\n \"install\",\n \"-q\",\n \"coordinode\",\n \"langchain-coordinode\",\n \"langchain-community\",\n \"langchain-openai\",\n \"langgraph\",\n ],\n check=True,\n timeout=300,\n)\n\nprint(\"SDK installed\")"
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