Petl on Project Wintermute

petl v1.7.24 Fixes Avro Decimal Inference

Wed, 19 Aug 2026 20:56:33 +0000

The Python ETL library petl tagged v1.7.24 on 19 August 2026. The only code change is a fix to Avro schema inference for Python Decimal values when toavro() runs without an explicit schema. Zero amounts, scientific notation, and mixed fractional scales no longer crash the writer or emit a decimal logical type that Apache Avro rejects.

petl v1.7.22 - Table Header Shadowing Fix

Wed, 29 Jul 2026 21:17:34 +0000

petl v1.7.22 was published on July 29, 2026. It fixes an instance attribute named header that shadowed the Table.header() method across table views, restoring a consistent method interface for pipelines that inspect table headers.

petl v1.7.21 Fixes Filldown And DictsView Failures

Tue, 28 Jul 2026 04:55:39 +0000

petl v1.7.21 was published on July 28, 2026. Its main change prevents filldown from raising RuntimeError on a table that contains a header but no data rows, while a second fix restores the expected Table.dicts() method path through DictsView.

petl v1.7.20 - None Capture Semantics

Tue, 21 Jul 2026 01:29:26 +0000

petl v1.7.20 was published on July 21, 2026, with a focused correction to capture: cells containing None are now treated as non matching. That change matters for extraction pipelines where a missing value must not pass through the same path as a successful match. This is a regular release, not a prerelease.