Rust ENDF-6 parser crate with Python bindings and a parity harness - #17

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shimwell wants to merge 44 commits into

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claude/rust-rewrite-python-layer-1upmmo

Commits on Aug 9, 2026

Add Rust parser crate with Python bindings and parity harness
claude
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9e53c74
Port MF1 and make the parity harness scale to the whole package
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566bb10
Port MF2 resonance parameters
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c0491e9
Port MF4, MF5 and MF6 distributions
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7d943cf
Port MF7, MF8, MF9 and MF10
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c210fe9
Port fission_energy from local-develop
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7583e35
Apply ruff format to the golden dumper
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ccc4a6c
Port the photon and atomic files: MF12-15, 23, 26, 27 and 28
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742dbc9
Port the covariance files: MF33, MF34 and MF40
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b4496ed
Add five fixtures, closing eight of the ten unverified parsers
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4080849
Port data.py: element tables, constants and sum rules
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5a7a5a9
Port ace.py: reading ACE cross section tables
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a27d8aa
Bring the golden README's checklists in line with the fixtures
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dcb799b
Port urr.py: unresolved resonance probability tables
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2758d69
Port univariate.py: the distribution primitives
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04aa87b
Port the interpreted angular distribution, from ENDF and from ACE
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5ec1816
Port angle_energy.py and the ACE side of mf5.py
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e17674e
Port product.py and radionuclide_production.py, and add decay fixtures
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3068990
Port the ENDF side of reaction.py
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e92319c
Port the ACE side of reaction.py
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06a0b48
Port incident_neutron.py
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3bd1d9e
Store the fixtures and the golden dumps xz-compressed
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8547036
Port decay.py
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da88bc4
Port incident_photon.py
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8f82882
Port chain.py and the nuclide type it builds on
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8511b18
Port njoy.py, and finish chain with validate
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a4fe1da
Treat a zero half-life as unevaluated rather than instant decay
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84470fe
Build out the Python bindings, and add CI for the Rust side
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b6d9e21
Pin the denormal ACE float on the Rust side too
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054141e
Give the extension section_data, the dict API it was missing
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fdc4eee
Project the covariance files through section_data too
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8bb1ed8
Project MF 1 MT458, 6, 7 and 26 through section_data
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8cbeb53
Close the last two section_data gaps, MF 2 and MF 8 MT=457
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16855a0
Add interpret, and the free functions and tables the module was missing
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1c6ec3e
Expose the radionuclide production and isomer-table helpers
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1da3a03
Cover the fission product yields, with a fixture built for them
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e0a5865
Fix the two CI jobs that have been failing since they were added
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771a6c7
Cover MF2 Breit-Wigner, MF5 LF=12, MF6 LANG=2/LAW=6 and MF13
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caa4d1c
Prepare the crate to be consumed as a dependency
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ad7e368
Ship type stubs for the extension module
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3c656c4
Fix five parser bugs in both readers, with tests
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ad0fca1
Read the auxiliary photon data, with a not-a-knot cubic spline
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6e3992e
Source the Compton profiles from Geant4 rather than from a copy
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daddb73
One file per tabulation, named for its source
shimwell
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8f42576