dirigent-parquet
The parquet format pack for dirigent: one codec, convert.arrow, trading parquet with the
three text spellings convert.std already trades between.
| From | To | What it does |
|---|---|---|
parquet |
json, ndjson, csv |
Each row becomes one record, every value in its JSON spelling. |
json, ndjson, csv |
parquet |
Each record becomes one row, under a schema inferred from the records. |
The record model is convert.std's: a sequence of flat records. What parquet adds is
types, and the codec is honest about them in both directions:
- Writing infers one type per column -- boolean, int64, float64, or string -- from the records. Integers and floats unify to a float column, because JSON calls both a number; any other mix is refused naming the column. A column every row leaves null is written as a nullable string column. A csv source carries no types, so csv to parquet writes string columns and nothing else.
- Reading gives every value its JSON spelling: timestamps, dates and times come back as ISO strings, decimals as strings, and a float that is NaN or infinite as null. A nested column, or one holding raw bytes, is refused naming it -- flattening is a reshape, and a reshape belongs to a jq step that knows what the flattening should mean.
A conversion is a storage-object operation, like storage.copy: it reads the object at
source and writes the one at target, and neither side is ever a value the step carries.
A run that means to look at the records reads them with storage.read.
The pack ships separately because convert.std is deliberately on the standard library
and nothing else; this codec stands on pyarrow.
Nothing else in the workspace may depend on it.
1 maintainer
Release files for dirigent-parquet 0.16.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| dirigent_parquet-0.16.0.tar.gz | 5.8 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| dirigent_parquet-0.16.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 13.5 kB
Release files / dirigent_parquet-0.16.0.tar.gz
| Download URL | dirigent_parquet-0.16.0.tar.gz |
|---|---|
| Size | 5.8 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
696c2d2800de4092a7809f1dc5c1cda18feb098222bc5fc36406a4afc1a2bb24
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Transparency logRelease files / dirigent_parquet-0.16.0-py3-none-any.whl
| Download URL | dirigent_parquet-0.16.0-py3-none-any.whl |
|---|---|
| Size | 7.7 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
7f388866cd2d841c4284f192fc5e4a8df534c1de447bfadbe0a758bec2c7636e
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
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 Sep 16, 2026.
Transparency log
