Signals

Flatland can notify your code when events of interest occur during flatland processing using Blinker signals. These signals can be used for advanced customization in your application or simply as a means for tracing and logging flatland activity during development.

element_set = <blinker.base.NamedSignal object at 0x7fc8e6761e90; 'element_set'>

Emitted after set() has been called on an element.

Parameters:

• sender – the element
• adapted – boolean, True if the set() adapted successfully.

validator_validated = <blinker.base.NamedSignal object at 0x7fc8e6761ed0; 'validator_validated'>

Emitted after a validator has processed an element.

Parameters:

• sender – the validator callable doing validation
• element – the element being validated
• state – the state passed to validate()
• result – the result of validator execution