pyaga8
Python bindings for the AGA8 GERG-2008 and DETAIL gas property equations, built on the Rust aga8 port of NIST's AGA8 code.
GitHub: https://github.com/equinor/pyaga8
Description
pyaga8 is a low-level Python interface to the AGA8 calculations. It exposes the underlying GERG-2008 and DETAIL state objects and methods directly, with Rust used for performance via pyo3.
Higher-level libraries such as pvtlib build on top of pyaga8 to provide workflows such as PT, PH, PS and rhoT calculations:
https://github.com/equinor/pvtlib/blob/main/examples/gas_properties_from_aga8.py
Installation
pip install pyaga8
Minimal usage
import pyaga8
detail = pyaga8.Detail()
comp = pyaga8.Composition()
comp.methane = 0.9
comp.nitrogen = 0.1
detail.set_composition(comp)
detail.temperature = 400.0
detail.pressure = 50_000.0
detail.calc_density()
print(detail.d)
Error handling
Python-facing API methods raise normal Python exceptions when inputs or state are invalid; they do not intentionally panic the Python interpreter.
set_composition(...)raisesValueErrorfor invalid mixtures, for example an empty composition or a sum that is not close enough to1.0.calc_density(...)/calc_density()raises ordinary Python exceptions based on the underlying failure, typicallyValueErrororRuntimeError.
pyaga8 is intentionally a lower-level library. Higher-level packages may choose to translate selected failures to NaN or other domain-specific behavior, but that translation is not part of pyaga8 itself.
Release files for pyaga8 0.1.18
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| pyaga8-0.1.18.tar.gz | 12.9 kB | Details |
Built distributions (wheels)
Total release size: 4.5 MB
Release files / pyaga8-0.1.18.tar.gz
| Download URL | pyaga8-0.1.18.tar.gz |
|---|---|
| Size | 12.9 kB |
| Tags | Source |
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Release files / pyaga8-0.1.18-cp314-cp314-win_amd64.whl
| Download URL | pyaga8-0.1.18-cp314-cp314-win_amd64.whl |
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| Size | 162.1 kB |
| Tags | CPython 3.14 Windows x86-64 |
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Release files / pyaga8-0.1.18-cp314-cp314-manylinux_2_34_x86_64.whl
| Download URL | pyaga8-0.1.18-cp314-cp314-manylinux_2_34_x86_64.whl |
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Release files / pyaga8-0.1.18-cp314-cp314-macosx_11_0_arm64.whl
| Download URL | pyaga8-0.1.18-cp314-cp314-macosx_11_0_arm64.whl |
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| Size | 272.1 kB |
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Release files / pyaga8-0.1.18-cp313-cp313-win_amd64.whl
| Download URL | pyaga8-0.1.18-cp313-cp313-win_amd64.whl |
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