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  1. Qt for Python
  2. PYSIDE-2605

runtime error when getting the style of a widget in embedded application

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Details

    • Bug
    • Resolution: Fixed
    • P4: Low
    • 6.7.0
    • 6.5.3
    • PySide
    • None
    • Windows
    • b9381164e (dev)

    Description

      We embed qt and python in our application. When we run python code we don't need to create a QApplication (it already exists).

      Running:
       

      from PySide6 import QtCore, QtWidgets
combo = QtWidgets.QComboBox()
view = combo.view()
print(view.style())

      will throw:

      
RuntimeError: Internal C++ object (PySide6.QtWidgets.QCommonStyle) already deleted.

      The workaround consists in calling:

      QtWidgets.QApplication.instance()

      once (just after the import).

      But it would be nice not having to do that.

      Attachments

        1. pyside2605_diag.diff
          4 kB
        2. pyside2605_invalidate_stack.txt
          24 kB
        3. pyside2605_log.txt
          4 kB
        4. pyside2605_nonembedded.py
          0.9 kB
        5. pyside2605_repro.diff
          0.7 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-1144 Embedded Python/PySide QApplication::Instance() returns QCoreApplicationWrapper instance

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-1504 QProxyStyle crash app !

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-571 Support the qApp macro correctly

          • P5: Not important - Not relevant and not urgent.
          • Closed
          For Gerrit Dashboard: PYSIDE-2605
          # Subject Branch Project Status CR V
          542390,3 Fix error about deleted C++ object when calling QWidget.style() in embedded application dev pyside/pyside-setup Status: MERGED +2 0

          Activity

            People

              crmaurei Cristian Maureira-Fredes
              hugow Hugo Windisch
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              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

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