Python ZPL Generator

This tool translates Python data and templates into Zebra ZPL code for label printers. It accepts structured inputs such as dictionaries and lists and supports template blocks that map data fields to ZPL fields, tag layouts, and barcode or QR patterns. The output is a valid ZPL string ready for printer submission. It is intended for developers and operations engineers who integrate labeling into Python-driven workflows, including automated print jobs from ERP, WMS, or custom inventory tools.
Conceptually, the engine separates data from presentation. A lightweight template renderer substitutes values, computes label dimensions, and emits ZPL commands for text, barcodes, and graphics. It offers optional features such as field validation, unit-aware sizing, and error reporting, plus support for common Zebra font sets and code pages. The approach enables repeatable, auditable label generation without hand-coding ZPL for every change.
Users benefit from faster label development, consistent layouts, and easier auditing. Typical use cases include shipping labels with barcodes, asset tags for tracking, and production labels that embed item codes, lot numbers, and expiry dates. The generator is designed to be scriptable, testable, and embeddable in data pipelines, CI pipelines, and batch jobs.
Unique value includes Python-native integration, templates that can be versioned with code, and deterministic outputs across environments. Core features include field mapping, barcode/QR generation, dynamic font sizing, label dimension handling, and export to a plain ZPL string suitable for direct printer submission. Excluded: UI concerns; the tool does not render previews in a UI; it focuses on producing valid ZPL and traceable data mappings.