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[Bug]: import matplotlib.backends.backend_qt5agg error for pyside6 #24212

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koutoftimer opened this issue Oct 18, 2022 · 3 comments
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[Bug]: import matplotlib.backends.backend_qt5agg error for pyside6 #24212

koutoftimer opened this issue Oct 18, 2022 · 3 comments

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@koutoftimer
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Bug summary

matplotlib/lib/matplotlib/backends/qt_compat.py

Line 144 in 318b234

_to_int = operator.attrgetter("value") if QT_API == "PyQt6" else int

Have to check for "PySide6" too.

Code for reproduction

$ QT_API=pyside6 python -c "import matplotlib.backends.backend_qt5agg"

Actual outcome

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/tmp.atoQSuHf68/venv/lib/python3.10/site-packages/matplotlib/backends/backend_qt5agg.py", line 7, in <module>
    from .backend_qtagg import (    # noqa: F401, E402 # pylint: disable=W0611
  File "/tmp/tmp.atoQSuHf68/venv/lib/python3.10/site-packages/matplotlib/backends/backend_qtagg.py", line 12, in <module>
    from .backend_qt import QtCore, QtGui, _BackendQT, FigureCanvasQT
  File "/tmp/tmp.atoQSuHf68/venv/lib/python3.10/site-packages/matplotlib/backends/backend_qt.py", line 72, in <module>
    _MODIFIER_KEYS = [
  File "/tmp/tmp.atoQSuHf68/venv/lib/python3.10/site-packages/matplotlib/backends/backend_qt.py", line 73, in <listcomp>
    (_to_int(getattr(_enum("QtCore.Qt.KeyboardModifier"), mod)),
TypeError: int() argument must be a string, a bytes-like object or a real number, not 'KeyboardModifier'

Expected outcome

no errors

Additional information

PySide6==6.4.0

Operating system

GNU\Gentoo Linux

Matplotlib Version

3.6.1

Matplotlib Backend

same exception

Python version

3.10.6

Jupyter version

not installed

Installation

pip
@koutoftimer
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I suppose it is already fixed in the main branch.

matplotlib/lib/matplotlib/backends/qt_compat.py

Lines 71 to 115 in 80b15fb

def _setup_pyqt5plus():
global QtCore, QtGui, QtWidgets, __version__
global _getSaveFileName, _isdeleted, _to_int
if QT_API == QT_API_PYQT6:
from PyQt6 import QtCore, QtGui, QtWidgets, sip
__version__ = QtCore.PYQT_VERSION_STR
QtCore.Signal = QtCore.pyqtSignal
QtCore.Slot = QtCore.pyqtSlot
QtCore.Property = QtCore.pyqtProperty
_isdeleted = sip.isdeleted
_to_int = operator.attrgetter('value')
elif QT_API == QT_API_PYSIDE6:
from PySide6 import QtCore, QtGui, QtWidgets, __version__
import shiboken6
def _isdeleted(obj): return not shiboken6.isValid(obj)
if parse_version(__version__) >= parse_version('6.4'):
_to_int = operator.attrgetter('value')
else:
_to_int = int
elif QT_API == QT_API_PYQT5:
from PyQt5 import QtCore, QtGui, QtWidgets
import sip
__version__ = QtCore.PYQT_VERSION_STR
QtCore.Signal = QtCore.pyqtSignal
QtCore.Slot = QtCore.pyqtSlot
QtCore.Property = QtCore.pyqtProperty
_isdeleted = sip.isdeleted
_to_int = int
elif QT_API == QT_API_PYSIDE2:
from PySide2 import QtCore, QtGui, QtWidgets, __version__
try:
from PySide2 import shiboken2
except ImportError:
import shiboken2
def _isdeleted(obj):
return not shiboken2.isValid(obj)
_to_int = int
else:
raise AssertionError(f"Unexpected QT_API: {QT_API}")
_getSaveFileName = QtWidgets.QFileDialog.getSaveFileName
if QT_API in [QT_API_PYQT6, QT_API_PYQT5, QT_API_PYSIDE6, QT_API_PYSIDE2]:
_setup_pyqt5plus()

@koutoftimer
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Yes it is fixed already. Can't reproduce the issue with main branch.

$ pip freeze
matplotlib @ git+https://github.com/matplotlib/matplotlib.git@80b15fb17be6455680a4830d0644731f8ee6bb8b
PySide6==6.4.0

For me works fine.

@oscargus
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Was fixed in #24158

@jklymak jklymak mentioned this issue Nov 5, 2022
Closed
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@koutoftimer @oscargus