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  1. Qt for Python
  2. PYSIDE-2371

REG->6.5: Memory leak connecting signal to local function

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Details

    • Bug
    • Resolution: Fixed
    • P4: Low
    • 6.5.2, 6.6.0
    • 6.4.0, 6.4.1, 6.5.0, 6.5.1, 6.4.2, 6.4.3, 6.5.1.1
    • PySide
    • None
    • Windows
    • f0109334c (dev), 7222d8a04 (6.5), 46ab90a5f (dev), afffc5838 (6.5), 2f37a27b3 (dev), 1c6a6a4e4 (6.5)

    Description

      When use signal,  the connected local function can not be destroyed by python

      PYQT6.x not found this problem  

       

      import sys
from PySide6.QtWidgets import *
from PySide6.QtCore import *
from PySide6.QtGui import *


if __name__ == "__main__":
    app = QApplication(sys.argv)

    def func():
       button = QPushButton()

       def onClicked(text):
          print("=========clicked button:", text)
       button.clicked.connect(partial(onClicked, "demo"))

    def _run():
       import objgraph
       objgraph.show_growth()
       func()
       QTimer.singleShot(1000, _run)

    _run()
    app.exec()

      test.zip

       

      Attachments

        1. pyside2371_diag.diff
          6 kB
        2. pyside2371_log.txt
          2 kB
        3. pyside2371.py
          1.0 kB
        4. test.zip
          38 kB
        5. testcode.png
          testcode.png
          244 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2299 REG->6.5: Memory/Reference Leak with connecting signals to lambda functions referencing "self"

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2646 [REG: 6.2->6.5] Connections to lambda or nested function prevent destruction of objects they refer to

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2141 Crash when connecting/disconnecting inherited slot

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
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          Activity

            People

              kleint Friedemann Kleint
              jerryhao_ jerry hao
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              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews