Automatic Widget Generation

qtextra.auto contains small helpers for turning lightweight schema dictionaries into Qt widgets and for moving values between widgets and Python data structures.

It is useful when you need:

• repetitive settings forms with predictable field types
• a simple way to hydrate widgets from saved configuration
• a matching way to collect edited values back into a dictionary

Example

from qtpy.QtWidgets import QApplication, QFormLayout, QWidget

from qtextra.auto import get_data_for_widgets, get_widget_for_schema, set_values_from_dict

app = QApplication([])

window = QWidget()
layout = QFormLayout(window)

widgets = {}
for name, schema in {
    "title": {"type": "string", "default": "Experiment A"},
    "enabled": {"type": "boolean"},
    "mode": {"type": "string", "enum": ["Fast", "Balanced", "Accurate"], "default": "Balanced"},
}.items():
    widget, extra_layout = get_widget_for_schema(window, schema)
    widgets[name] = widget
    layout.addRow(name.title(), extra_layout or widget)

set_values_from_dict({"title": "Updated name", "enabled": True}, widgets)
data = get_data_for_widgets(widgets)

window.show()
app.exec_()

Notes

• guess_widget_cls() derives a default widget type from type or anyOf.
• get_widget_for_schema() returns the main widget and, when needed, a small wrapper layout containing help, warning, or info affordances.
• set_values_from_dict() and get_data_for_widgets() are the main round-tripping helpers.