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