CODEWITHSUNDEEP
pyqtqvariant
Georg Schölly
Georg Schölly

Reputation: 126105

Is there a possibility to automatically convert QVariants to Python objects?

PyQt 4.5.4, Python 2.6.2

Since version 4.5.2 PyQt is able to accept any Python objects where formerly only QVariants were allowed. This leads to some problems:

>>> itemModel.data(index, Qt.EditRole)
<Product object at 0xb7ce766c>
>>> index.data(Qt.EditRole)
<QVariant object at 0xb7ce768c>

Is there a possibility to remove this inconsistence?

Upvotes: 2

Views: 2202

Answers (3)

Georg Sch&#246;lly
Georg Sch&#246;lly

Reputation: 126105

PyQt 4.6, using the modern API:

The QVariant class is implemented as a mapped type. Any Python object can be passed when a QVariant instance is expected. When Qt returns a QVariant then it will automatically be converted to the original Python object or an equivalent. None is interpreted as an invalid QVariant and vice versa.

Upvotes: 4

Georg Sch&#246;lly
Georg Sch&#246;lly

Reputation: 126105

The only solution I have found is converting every value to a QVariant and then back:

QVariant(possiblyAQVariant).toPyObject()

This works for QVariants and Python types.

Upvotes: 1

Wim Verhavert
Wim Verhavert

Reputation: 1007

You could use the .toPyObject() method on a QVariant. I doubt that this works for custom types, though.

Upvotes: 1

Related Questions