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PyQtGraph Largely Incompatible with PyPy #2270

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j9ac9k opened this issue Apr 23, 2022 · 1 comment
Open

PyQtGraph Largely Incompatible with PyPy #2270

j9ac9k opened this issue Apr 23, 2022 · 1 comment

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@j9ac9k
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@j9ac9k j9ac9k commented Apr 23, 2022

Short description

Getting segfaults when using widgets based on GraphicsView, Widgets using QOpenGLWidget appear to function as intended.

Code to reproduce

When running examples that use pyqtgraph.GraphicsWidget we get a segfault/

python pyqtgraph/examples/PlotSpeedTest.py

Expected behavior

No segfault

Real behavior

pyqtgraph-pypy ❯ python pyqtgraph/examples/PlotSpeedTest.py
zsh: segmentation fault  python pyqtgraph/examples/PlotSpeedTest.py

Tested environment(s)

  • PyQtGraph version: master commit: 74fa36d
  • Qt Python binding: PySide6 6.3 PyPy
  • Python version: 3.8.13 - pypy
  • NumPy version: 1.22.3 - pypy
  • Operating system: macOS
  • Installation method: pip

Additional context

PySide6 installed via

pip install pyside6 --index-url=https://download.qt.io/official_releases/QtForPython/pypy/

NumPy was built from source.
@j9ac9k
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@j9ac9k j9ac9k commented Apr 23, 2022

Walking through the debugger, the segfault occurs on this line:

pyqtgraph/pyqtgraph/graphicsItems/GraphicsWidget.py

Line 16 in 74fa36d

QtWidgets.QGraphicsWidget.__init__(self, *args, **kargs) 

> /Users/ogi/Developer/pyqtgraph/pyqtgraph/graphicsItems/GraphicsWidget.py(17)__init__()
-> QtWidgets.QGraphicsWidget.__init__(self, *args, **kargs)
(Pdb) widget = QtWidgets.QGraphicsWidget()
(Pdb) widfget = QtWidgets.QGraphicsWidget.__init__(self)
zsh: segmentation fault  python pyqtgraph/examples/PlotSpeedTest.py

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