This software provides explicitly typed attributes for Python, allowing for easier and more efficient programming within the language. With clear and precise typing, programmers can avoid potential errors and create more stable and reliable code.
Traits are type definitions that provide additional characteristics to object attributes. Traits can define default values, validate attribute types, delegate attribute values to other objects, notify other parts of the program when values change, and visualize the modifications with user interfaces. Classes can mix trait-based and normal Python attributes, and can choose to use a fixed or open set of trait attributes. Inherited subclasses also inherit the defined trait attributes.
The Traits package is compatible with version 2.4 and later of Python, and provides similar capabilities as Python's property language feature, but with less effort from the programmer. Traits UI is a complementary package that comprises user interface tools designed to work seamlessly with Traits. It can automatically generate user interfaces for editing Traits-based objects, and it also enables the implementation of a Model-View-Controller design pattern for Traits-based objects.
Danny Shevitz from Los Alamos, NM praised the brilliant design of Traits UI, highlighting that users don't have to think about the mapping between model and GUI. Whenever changes happen to the model, the GUI automatically reflects those changes and vice versa. Note that besides Traits and Traits UI, to display user interfaces users also need TraitsGUI and corresponding Traits "backend" projects.
Version 3.2.0: N/A