This release is a pre-release and may not be stable for production use.
Rangekeeper
Rangekeeper is the modelling engine: a Python library for real estate financial
modelling, cashflow forecasting and scenario analysis. It separates project facts and equations in a
Model, investigation choices in a Specification, and finalized evidence in a
Run. Immutable revisions retain units, identity and provenance.
Known-data calculations support DCF analysis. The execution layer solves declared finite affine equations with Pyomo/HiGHS and independently checks candidate outputs. Public authoring APIs and C# Grasshopper components connect reviewed data and design models to canonical records. Polars serves detached tables and CSV.
The develop branch can differ from the latest PyPI release. Install from source
with the installation guide, and use the upgrade guide to move from an earlier release.
The package ownership and import guide
lists the current namespaces; Model, Specification and Run remain root imports.
| Project or guide | Start here |
|---|---|
| Python package | Installation and extras |
| Contributing | Formatting and writing conventions |
| Architecture and APIs | Documentation index |
| Executable examples | Examples and walkthroughs |
| Schema and generation | Schema guide |
| Rhino/Grasshopper | Unsupported C# example |
| Older consumers | Upgrade guide |
| Verification | Checks and limits |
| Conduct and citation | Code of conduct, citation metadata |
The walkthroughs follow Geltner and de Neufville's Flexibility and Real Estate Valuation under Uncertainty. Historical plans and captured acceptance results are linked from the documentation index. The retirement guide records the removed predecessor runtime.
Versions
| Line | Branch | Status |
|---|---|---|
| 1.x | develop |
In development. The API on this branch is not on PyPI yet. |
| 0.8.x | support/0.8 |
Bug and security fixes only, until an announced end of life. |
Applications that use 0.8.x should declare rangekeeper>=0.8.72,<0.9. Then a
1.0 release on PyPI does not replace their version. SECURITY.md
lists the supported versions; the release guide
gives the release procedure.
Library boundary
Rangekeeper provides canonical models, schemas, validation, calculations, execution, native IO and local display. Source ingestion services, access policy and application interfaces are separate consumer responsibilities.
See the breaking upgrade guide. The walkthrough
lessons are in examples/walkthrough. See the
walkthrough procedure.
1 maintainer
Metadata
1 maintainer
Release files for rangekeeper 1.0.0a2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| rangekeeper-1.0.0a2.tar.gz | 306.2 kB | With provenance | Details for rangekeeper-1.0.0a2.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| rangekeeper-1.0.0a2-py3-none-any.whl | Python 3 | none | any | Details for rangekeeper-1.0.0a2-py3-none-any.whl |
Total release size: 647.6 kB
Release files / rangekeeper-1.0.0a2.tar.gz
| Download URL | rangekeeper-1.0.0a2.tar.gz |
|---|---|
| Size | 306.2 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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Yes |
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Signed by GitHub Actions, verified by PyPI on Oct 28, 2026.
Transparency logRelease files / rangekeeper-1.0.0a2-py3-none-any.whl
| Download URL | rangekeeper-1.0.0a2-py3-none-any.whl |
|---|---|
| Size | 341.4 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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BLAKE2b-256 checksum How to use checksums |
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 28, 2026.
Transparency logSecurity for rangekeeper 1.0.0a2
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for rangekeeper-1.0.0a2.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 28, 2026.
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