v1.1.0

DataLab Version 1.1.0 (2026-02-02)

✨ New Features

Web API for HTTP/JSON integration:

DataLab now provides a modern HTTP/JSON Web API as an alternative to the existing XML-RPC interface. This is the recommended integration path for new projects, especially for Jupyter notebooks and web-based tools.

• Accessible via: File → Web API → Start Web API Server (or set DATALAB_WEBAPI_ENABLED=1 environment variable)
• Key benefits:
  • JSON for metadata and NPZ for binary data (efficient large array transfer)
  • Bearer token authentication for security
  • REST conventions with OpenAPI documentation
  • WASM/Pyodide compatibility (works in browser environments)
• Endpoints include:
  • Object listing, retrieval, creation, and deletion
  • Metadata management and binary data transfer (NPZ format)
  • Computation API for running processing operations remotely
• Auto-discovery: DataLab-Kernel automatically finds and connects to a running DataLab instance without manual configuration
• Security: Localhost binding by default, with optional localhost token bypass for simplified local development

PyQt6 compatibility:

• DataLab now fully supports PyQt6 in addition to PyQt5
• Fixed screen geometry retrieval to use primaryScreen() for Qt5-Qt6 compatibility
• CI pipeline now includes PyQt6 testing to ensure ongoing compatibility

Remote control API enhancements:

Note: These new features also concern the macro commands API, as macros use the same proxy interface as remote control clients.

• Added call_method() method to RemoteProxy class for calling any public method on DataLab main window or panels:

  • Enables programmatic access to operations not exposed through dedicated proxy methods (e.g., remove_object, delete_all_objects, get_current_panel)
  • Supports automatic method resolution: checks main window first, then current panel if method not found
  • Optional panel parameter allows targeting specific panel ("signal" or "image")
  • Thread-safe execution: GUI operations automatically execute in main thread to prevent freezing
  • Proper exception handling: exceptions raised during method execution (e.g., attempting to call private methods) are captured and propagated to the client as xmlrpc.client.Fault objects with the original error message
  • New macro example test_call_method.py demonstrates usage: removing objects, getting current panel, and panel-specific operations
  • Expands automation capabilities for advanced macro workflows and external application control

• Added remove_object() method to proxy interface (local and remote) for selective object deletion

  • Removes currently selected object from active panel
  • Optional force parameter to skip confirmation dialog
  • Complements existing reset_all() method which clears the entire workspace (including all macros)

Dependencies:

• Updated Sigima dependency to version 1.1.0 which includes new features and bug fixes
• Added Web API dependencies: FastAPI, Uvicorn, and Pydantic (included in standard installation)