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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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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P4: Low 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)

      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

       

        1. pyside2371_diag.diff
          6 kB
          Friedemann Kleint
        2. pyside2371_log.txt
          2 kB
          Friedemann Kleint
        3. pyside2371.py
          1.0 kB
          Friedemann Kleint
        4. test.zip
          38 kB
          jerry hao
        5. testcode.png
          244 kB
          jerry hao
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            kleint Friedemann Kleint
            jerryhao_ jerry hao
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              Created:
              Updated:
              Resolved: