HP Prime Development Tools

VS Code extension for developing HP Prime graphing calculator programs.

Features

HP PPL Language Support

• Syntax highlighting for HP PPL (.hpppl files)
• IntelliSense — completions, hover docs, and signature help for 200+ built-in PPL functions
• Code snippets — 25 ready-to-use patterns (event loops, double buffering, dialogs, touch input, etc.)
• Go to Definition and Document Symbols for user-defined functions and variables

Binary File Editors

• .hpappprgm / .hpprgm — view and edit program files with multi-program support, embedded images, and round-trip binary preservation
• .hpappnote / .hpnote — rich text note editor with CAS RT metadata preservation
• .hpapp — app metadata viewer showing decoded binary fields

Project Management

• HP Prime sidebar — browse all projects and programs from the HP Connectivity Kit Content directory
• Create projects (.hpappdir) and standalone programs (.hpprgm)
• Import from folders or ZIP archives (drag-and-drop supported)
• Add files — Python modules, notes, and sub-programs to existing projects

Python Support

• Bundled type stubs for HP Prime MicroPython modules (hpprime, graphic, cas, linalg, arith, etc.)
• Automatic Pylance configuration for import resolution

Requirements

• VS Code 1.80.0 or later
• HP Connectivity Kit (for calculator sync)

Extension Settings

This extension automatically configures:

• python.analysis.extraPaths — adds HP Prime type stubs
• python.analysis.diagnosticSeverityOverrides — suppresses false positives for stub-only modules

File Types