hgraph

HGraph is a functional-reactive time-series engine with a Python-first user experience and a native C++ runtime. Most users author and test graphs with the hgraph Python package; library authors can use the C++ API directly when they need native integration or maximum performance. Both paths wire and execute through the same runtime.

Python package

The C++-backed runtime is published under the hgraph distribution name:

python -m pip install hgraph

The distribution exposes the supported hgraph authoring package and its private native _hgraph extension. The 0.8 line replaces the Python runtime maintained on the release/0.5 branch while retaining Python as the primary public API. One wheel per supported platform covers CPython 3.12 and later through the CPython stable ABI. The supported Python and platform policy is recorded in docs/source/developer_guide/release_readiness.rst.

Start with docs/source/getting_started.rst and use docs/source/reference/ for the supported Python types, decorators, operators and modules.

Build & test

cmake -S . -B build                 # configure (fmt + Catch2 fetched if absent)
cmake --build build -j              # build hgraph_core + tests
ctest --test-dir build --output-on-failure

Requires a C++23 compiler and CMake >= 3.25. Python/nanobind are not needed for the default build (bindings are opt-in via -DHGRAPH_BUILD_PYTHON_BINDINGS=ON).

First-party extensions

First-party extensions are co-developed in extensions/ but remain separate native and Python distributions. Kafka is built in-tree for development with -DHGRAPH_BUILD_KAFKA_EXTENSION=ON, or independently from extensions/kafka/ against an installed hgraph SDK. Its wheel is selected from the uv workspace after making that matching SDK discoverable:

CMAKE_PREFIX_PATH=/path/to/hgraph/sdk \
  uv build --wheel --package hgraph-kafka --python 3.12

The core build does not enable the extension by default and does not acquire a Kafka or librdkafka dependency.

Documentation

Sphinx docs live under docs/source (uv sync --extra docs, then uv run sphinx-build -W -b html docs/source docs/_build/html):

  • Getting started — docs/source/getting_started.rst: install the wheel and run a first graph in Python.
  • User guide — docs/source/user_guide/: the concepts the runtime implements and the primary Python authoring track (python/: quick start, common tasks, tutorial, programming model). Native C++ authoring is an advanced section for library authors.
  • Python API reference — docs/source/reference/: curated reference pages plus a generated inventory of wildcard exports, lazy operators and public submodules.
  • Specification — docs/source/specification/: a language-neutral definition of HGraph semantics.
  • Developer guide — the authoritative design records (docs/source/developer_guide/): architecture, data structures, wiring, nested graphs, mesh, services, error handling, operators, roadmap.

The narrative documentation's Python examples are executable. They are checked against a real runtime by sphinx-build -b doctest, which needs an importable hgraph; CI runs both that and the warning-free HTML build.

Contributing / AI sessions

  • AGENTS.md — canonical project direction: goals, build philosophy, source layout, dependency policy, git hygiene.
  • CLAUDE.md — the operational working guide: the enforced design-first workflow (docs change in the same commit as code), guardrails, architecture map, and current state.
  • plugins/hgraph-development/ — installable hgraph development skills for downstream Codex and Claude projects.

Project links

Data verified by PyPI on Aug 16, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (0.8.22)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for hhenson from gravatar.com hhenson

Credits

Author: Howard Henson

GitHub Statistics

Data verified by PyPI on Aug 16, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT License (MIT)

Requires

Python >=3.12

Provides Extra

python test parity web sql snowflake delta perspective dataframe docs dev

Tags

reactive graph forward propagating graph time series functional reactive programming c++

Classifiers

Report project as malware

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

hgraph-0.8.17.tar.gz (5.0 MB view details)

Uploaded Source

Built Distributions

If you're not sure about the file name format, learn more about wheel file names.

hgraph-0.8.17-cp312-abi3-win_amd64.whl (19.7 MB view details)

Uploaded CPython 3.12+Windows x86-64

hgraph-0.8.17-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl (8.5 MB view details)

Uploaded CPython 3.12+manylinux: glibc 2.27+ x86-64manylinux: glibc 2.28+ x86-64

hgraph-0.8.17-cp312-abi3-macosx_15_0_arm64.whl (8.0 MB view details)

Uploaded CPython 3.12+macOS 15.0+ ARM64

File details

Details for the file hgraph-0.8.17.tar.gz.

File metadata

  • Download URL: hgraph-0.8.17.tar.gz
  • Upload date:
  • Size: 5.0 MB
  • Tags: Source
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for hgraph-0.8.17.tar.gz
Algorithm Hash digest
SHA256 e0c218ee79d57db0167fbc2e2be38283457eb4c310c272f5370b06c7cfaaa712
MD5 571f610f4fd160a0251b322476271782
BLAKE2b-256 ceee618736c07f5ca1cd975da4db8c968c94edfa8f47dd9f5e6c5b59f66c6752

See more details on using hashes here.

Provenance

The following attestation bundles were made for hgraph-0.8.17.tar.gz:

Publisher: release-wheels.yml on hhenson/hgraph

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

File details

Details for the file hgraph-0.8.17-cp312-abi3-win_amd64.whl.

File metadata

  • Download URL: hgraph-0.8.17-cp312-abi3-win_amd64.whl
  • Upload date:
  • Size: 19.7 MB
  • Tags: CPython 3.12+, Windows x86-64
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for hgraph-0.8.17-cp312-abi3-win_amd64.whl
Algorithm Hash digest
SHA256 a192f4147f3cda73a43e87d3161a01c7209a0475ae6cd4f62116f313274261fd
MD5 1c3f33dd9f7e3b93282734c38ac1e45b
BLAKE2b-256 e98f355e1d0e531274be5a09223df35b915ab14af31576625c36d82890292213

See more details on using hashes here.

Provenance

The following attestation bundles were made for hgraph-0.8.17-cp312-abi3-win_amd64.whl:

Publisher: release-wheels.yml on hhenson/hgraph

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

File details

Details for the file hgraph-0.8.17-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl.

File metadata

File hashes

Hashes for hgraph-0.8.17-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl
Algorithm Hash digest
SHA256 29de67afa31aa62f3df43ad1c821908201e8c898db828085a0e0e79aa0d136b8
MD5 6702d22083f4023d7e750911aef112b8
BLAKE2b-256 405a8ff793d1087be163d3806b4ca32fe1daf07e01e9df51c1cfaafd0c7acbeb

See more details on using hashes here.

Provenance

The following attestation bundles were made for hgraph-0.8.17-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl:

Publisher: release-wheels.yml on hhenson/hgraph

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

File details

Details for the file hgraph-0.8.17-cp312-abi3-macosx_15_0_arm64.whl.

File metadata

File hashes

Hashes for hgraph-0.8.17-cp312-abi3-macosx_15_0_arm64.whl
Algorithm Hash digest
SHA256 34b531525d6e0a1eb9e13aacf9eb09c5accd0b6a32d824a4187bd8b46e244cdc
MD5 da47ed067f449c4aae77ddc11a1037af
BLAKE2b-256 51f101a3ba8f5e4144ed720418b9b40c318346eb3447cd127708262a7cad399f

See more details on using hashes here.

Provenance

The following attestation bundles were made for hgraph-0.8.17-cp312-abi3-macosx_15_0_arm64.whl:

Publisher: release-wheels.yml on hhenson/hgraph

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Release history Release notifications | RSS feed

0.8.22

4 files

0.8.21

4 files

0.8.20

4 files

0.8.19

4 files

0.8.18

4 files

This release

0.8.17 This release

4 files

0.8.16

4 files

0.8.15

4 files

0.8.14

4 files

0.8.13

4 files

0.8.12

4 files

0.8.11

4 files

0.8.10

4 files

0.8.9

4 files

0.8.8

4 files

0.8.7

4 files

0.8.6

4 files

0.8.5

4 files

0.8.4

4 files

0.8.3

4 files

0.8.2

4 files

0.8.1

4 files

0.8.0

4 files

0.5.42

5 files

0.5.41

5 files

0.5.40

5 files

0.5.39

5 files

0.5.38

5 files

0.5.36

5 files

0.5.35

5 files

0.5.34

5 files

0.5.33

5 files

0.5.32

5 files

0.5.31

5 files

0.5.30

5 files

0.5.29

5 files

0.5.28

5 files

0.5.27

5 files

0.5.26

5 files

0.5.25

5 files

0.5.24

5 files

0.5.23

5 files

0.5.22

5 files

0.5.21

5 files

0.5.20

5 files

0.5.19

5 files

0.5.18

5 files

0.5.17

5 files

0.5.16

5 files

0.5.15

5 files

0.5.14

5 files

0.5.13

5 files

0.5.12

5 files

0.5.11

5 files

0.5.10

5 files

0.5.9

5 files

0.5.8

5 files

0.5.7

5 files

0.5.6

5 files

0.5.5

5 files

0.5.4

5 files

0.5.3

5 files

0.5.2

5 files

0.5.1

5 files

0.5.0

5 files

0.4.102

6 files

0.4.101

2 files

0.4.100

2 files

0.4.99

2 files

0.4.98

2 files

0.4.97

2 files

0.4.96

2 files

0.4.95

2 files

0.4.94

2 files

0.4.93

2 files

0.4.92

2 files

0.4.91

2 files

0.4.90

2 files

0.4.89

2 files

0.4.88

2 files

0.4.87

2 files

0.4.86

2 files

0.4.85

2 files

0.4.84

2 files

0.4.83

2 files

0.4.82

2 files

0.4.81

2 files

0.4.80

2 files

0.4.79

2 files

0.4.78

2 files

0.4.77

2 files

0.4.76

2 files

0.4.75

2 files

0.4.74

2 files

0.4.73

2 files

0.4.72

2 files

0.4.71

2 files

0.4.70

2 files

0.4.69

2 files

0.4.68

2 files

0.4.67

2 files

0.4.66

2 files

0.4.65

2 files

0.4.64

2 files

0.4.63

2 files

0.4.62

2 files

0.4.61

2 files

0.4.60

2 files

0.4.59

2 files

0.4.58

2 files

0.4.57

2 files

0.4.56

2 files

0.4.55

2 files

0.4.54

2 files

0.4.53

2 files

0.4.52

2 files

0.4.51

2 files

0.4.50

2 files

0.4.49

2 files

0.4.48

2 files

0.4.47

2 files

0.4.46

2 files

0.4.45

2 files

0.4.44

2 files

0.4.43

2 files

0.4.42

2 files

0.4.41

2 files

0.4.40

2 files

0.4.39

2 files

0.4.38

2 files

0.4.37

2 files

0.4.36

2 files

0.4.35

2 files

0.4.34

2 files

0.4.32

2 files

0.4.31

2 files

0.4.30

2 files

0.4.29

2 files

0.4.28

2 files

0.4.27

2 files

0.4.26

2 files

0.4.25

2 files

0.4.24

2 files

0.4.23

2 files

0.4.22

2 files

0.4.21

2 files

0.4.20

2 files

0.4.19

2 files

0.4.18

2 files

0.4.17

2 files

0.4.16

2 files

0.4.15

2 files

0.4.14

2 files

0.4.13

2 files

0.4.12

2 files

0.4.11

2 files

0.4.10

2 files

0.4.9

2 files

0.4.8

2 files

0.4.7

2 files

0.4.6

2 files

0.4.5

2 files

0.4.4

2 files

0.4.3

2 files

0.4.2

2 files

0.4.1

2 files

0.4.0

2 files

0.3.60

2 files

0.3.59

2 files

0.3.58

2 files

0.3.57

2 files

0.3.56

2 files

0.3.55

2 files

0.3.54

2 files

0.3.53

2 files

0.3.52

2 files

0.3.51

2 files

0.3.50

2 files

0.3.49

2 files

0.3.48

2 files

0.3.47

2 files

0.3.46

2 files

0.3.45

2 files

0.3.44

2 files

0.3.43

2 files

0.3.42

2 files

0.3.41

2 files

0.3.40

2 files

0.3.38

2 files

0.3.37

2 files

0.3.35

2 files

0.3.34

2 files

0.3.33

2 files

0.3.32

2 files

0.3.31

2 files

0.3.30

2 files

0.3.28

2 files

0.3.27

2 files

0.3.26

2 files

0.3.25

2 files

0.3.24

2 files

0.3.23

2 files

0.3.21

2 files

0.3.20

2 files

0.3.19

2 files

0.3.18

2 files

0.3.17

2 files

0.3.16

2 files

0.3.15

2 files

0.3.14

2 files

0.3.13

2 files

0.3.12

2 files

0.3.11

2 files

0.3.10

2 files

0.3.9

2 files

0.3.8

2 files

0.3.7

2 files

0.3.6

2 files

0.3.5

2 files

0.3.4

2 files

0.3.3

2 files

0.3.2

2 files

0.3.1

2 files

0.3.0

2 files

0.2.54

2 files

0.2.53

2 files

0.2.52

2 files

0.2.51

2 files

0.2.50

2 files

0.2.49

2 files

0.2.48

2 files

0.2.47

2 files

0.2.46

2 files

0.2.45

2 files

0.2.44

2 files

0.2.43

2 files

0.2.42

2 files

0.2.41

2 files

0.2.40

2 files

0.2.39

2 files

0.2.38

2 files

0.2.37

2 files

0.2.36

2 files

0.2.34

2 files

0.2.33

2 files

0.2.32

2 files

0.2.31

2 files

0.2.30

2 files

0.2.29

2 files

0.2.28

2 files

0.2.27

2 files

0.2.26

2 files

0.2.25

2 files

0.2.24

2 files

0.2.23

2 files

0.2.22

2 files

0.2.21

2 files

0.2.20

2 files

0.2.19

2 files

0.2.18

2 files

0.2.17

2 files

0.2.16

2 files

0.2.15

2 files

0.2.14

2 files

0.2.13

2 files

0.2.12

2 files

0.2.11

2 files

0.2.10

2 files

0.2.9

2 files

0.2.8

2 files

0.2.7

2 files

0.2.6

2 files

0.2.5

1 file

0.2.4

2 files

0.2.3

2 files

0.2.2

2 files

0.2.1

2 files

0.2.0

2 files

0.1.19

2 files

0.1.18

2 files

0.1.17

2 files

0.1.16

2 files

0.1.15

2 files

0.1.14

2 files

0.1.13

2 files

0.1.12

2 files

0.1.11

2 files

0.1.10

2 files

0.1.9

2 files

0.1.8

2 files

0.1.7

2 files

0.1.6

2 files

0.1.5

2 files

0.1.4

2 files

0.1.3

2 files

0.1.2

2 files

0.1.1

2 files

0.1.0

2 files

0.0.11

2 files

0.0.10

2 files

0.0.9

2 files

0.0.8

2 files

0.0.7

2 files

0.0.6

2 files

0.0.5

2 files

0.0.4

2 files

0.0.3

2 files

0.0.2

2 files

0.0.1

2 files

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page