Details
P2: Important Description
The following code stores a list with QSettings:
from PySide2 import QtCore settings = QtCore.QSettings('Foo', 'Bar') if settings.value('ids') is None: item_list = ['a', 'b', 'c'] settings.setValue('ids', item_list) else: r = settings.value('ids') print(r, type(r))
The previous code must be executed twice, in the first execution it saves the list, and in the second execution the list is obtained correctly.
['a', 'b', 'c'] <class 'list'>
But if you pass a list of a single element of type string in the second invocation you get as a string instead of the list:
from PySide2 import QtCore settings = QtCore.QSettings('Foo2', 'Bar2') if settings.value('ids') is None: item_list = ['a'] settings.setValue('ids', item_list) else: r = settings.value('ids') print(r, type(r))
Output:
a <class 'str'>
In PyQt5, the QSettings::value() method has an argument that can be used to indicate the type of data that is expected to avoid this type of problem.
Attachments
Issue Links
- depends on
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PYSIDE-1017 Support named variables while adding functions in the typesystems
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- Closed
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- relates to
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- Reported
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- Reported
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