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ntoseye

Drive the ntoseye Windows kernel debugger from Python, and run it from the command line.

The standalone SDK uses the 0.37 API; see docs/sdk.md for address-space-bound views, run control, and the 0.36 migration table. The package also installs the ntoseye command (the REPL, ntoseye mcp, dap, and gdbserver), which runs Python custom commands from ~/.ntoseye/commands/: uv tool install ntoseye or pipx install ntoseye.

Install

pip install ntoseye

Or build from source into a virtualenv with maturin:

cd python
python3 -m venv .venv
source .venv/bin/activate
pip install maturin
maturin develop --release

Or build a wheel and install it:

cd python
maturin build --release --out dist
pip install dist/ntoseye-*.whl

Quick start

import ntoseye

with ntoseye.attach() as dbg:  # defaults to the kd backend
    print(dbg.inspect.version())
    for proc in dbg.processes:
        print(proc.pid, proc.name)

For read-only inspection of a paused VM, select backend="memory". Processes are handles keyed by PID (dbg.processes[pid]); memory and modules for a specific process are available through proc.memory and proc.modules.

Type stubs

ntoseye/_ntoseye.pyi is generated from the extension by PyO3's introspection: signatures come from the Rust types and docstrings from the doc comments. After changing the Rust surface, regenerate it and commit the result (CI fails when the checked-in stub differs from a fresh one):

maturin develop --release --generate-stubs

Tests

pip install pytest mypy
pytest tests                        # target-free surface tests
mypy --strict -p ntoseye            # the stub and package type-check
NTOSEYE_TEST_BACKEND=kd NTOSEYE_TEST_CONNECT=/tmp/ntoseye-kd.sock pytest tests

The last line also runs tests/test_live.py against a guest: it breaks in, steps, sets breakpoints on hot kernel functions, and resumes the guest. Add NTOSEYE_TEST_MEMORY_SOURCE=kd to read guest memory over KD instead of from the VM process: no root needed for UTM on macOS, and required for a remote target.

Releasing portable wheels

Release wheels are built by .github/workflows/release.yml with PyO3/maturin-action on native GitHub runners:

  • Linux x86-64 and ARM64 build on ubuntu-22.04 and ubuntu-24.04-arm inside the quay.io/pypa/manylinux_2_28_* images, producing manylinux_2_28 wheels.
  • Apple Silicon uses the native ARM64 macos-14 runner.

Each wheel then passes twine check and the target-free tests (tests/test_surface.py) in a clean virtual environment before upload.

To reproduce a Linux release wheel locally (from the repository root, Docker required):

docker run --rm -e CARGO_TARGET_DIR=/tmp/target -e HOST_IDS="$(id -u):$(id -g)" \
  -v "$PWD":/io -w /io/python quay.io/pypa/manylinux_2_28_$(uname -m) bash -c '
  dnf install -y clang &&
  curl -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal &&
  source ~/.cargo/env &&
  /opt/python/cp312-cp312/bin/pip install maturin &&
  /opt/python/cp312-cp312/bin/maturin build --release --out dist --compatibility manylinux_2_28 &&
  chown -R "$HOST_IDS" dist'

Release files for ntoseye 0.38.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distributions (wheels)

Table of built distributions (wheels) for ntoseye 0.38.0
File Interpreter ABI Platform
ntoseye-0.38.0-cp39-abi3-manylinux_2_28_x86_64.whl CPython 3.9 abi3 Linux glibc 2.28+ x86-64 Details
ntoseye-0.38.0-cp39-abi3-manylinux_2_28_aarch64.whl CPython 3.9 abi3 Linux glibc 2.28+ ARM64 Details
ntoseye-0.38.0-cp39-abi3-macosx_11_0_arm64.whl CPython 3.9 abi3 macOS 11.0+ ARM64 Details

Total release size: 29.5 MB

Release files / ntoseye-0.38.0-cp39-abi3-manylinux_2_28_x86_64.whl

Download URL ntoseye-0.38.0-cp39-abi3-manylinux_2_28_x86_64.whl
Size 10.1 MB
Tags CPython 3.9 Linux glibc 2.28+ x86-64 abi3
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33c1ab3557747ee27660237fe982006af68b72da1ac4208b1980c65d12dd45ae
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Release files / ntoseye-0.38.0-cp39-abi3-manylinux_2_28_aarch64.whl

Download URL ntoseye-0.38.0-cp39-abi3-manylinux_2_28_aarch64.whl
Size 10.3 MB
Tags CPython 3.9 Linux glibc 2.28+ ARM64 abi3
SHA-256 checksum
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Release files / ntoseye-0.38.0-cp39-abi3-macosx_11_0_arm64.whl

Download URL ntoseye-0.38.0-cp39-abi3-macosx_11_0_arm64.whl
Size 9.1 MB
Tags CPython 3.9 abi3 macOS 11.0+ ARM64
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Uploaded via twine/7.0.0 CPython/3.13.14

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0.38.0 This release

3 release files

0.37.1

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0.37.0

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0.36.0

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0.35.0

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0.34.0

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0.33.0

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0.32.0

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0.31.0

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0.30.0

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0.28.1

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0.28.0

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0.26.0

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0.25.0

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0.24.0

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