MNE Viz Raw Browser crashes due to NameError: name '_qt_init_icons' is not defined #10623
Description
Describe the bug
Freshly installed MNE Version 1.0.2 for MacOS M1 / Apple Silicon (using Anaconda) causes the following error when trying to call raw.plot() if the MacOS theme option is set to dark mode:
Traceback (most recent call last):
File "/Users/tarek/Documents/Development/BA/eeg-mne/topomap.py", line 27, in <module>
raw.plot(block=True )
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne/io/base.py", line 1550, in plot
return plot_raw(self, events, duration, start, n_channels, bgcolor,
File "<decorator-gen-182>", line 12, in plot_raw
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne/viz/raw.py", line 356, in plot_raw
fig = _get_browser(show=show, block=block, **params)
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne/viz/_figure.py", line 654, in _get_browser
fig = backend._init_browser(**kwargs)
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne_qt_browser/_pg_figure.py", line 4748, in _init_browser
browser = MNEQtBrowser(**kwargs)
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne_qt_browser/_pg_figure.py", line 221, in func
meth(self, *args, **kwargs)
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne_qt_browser/_pg_figure.py", line 2713, in __init__
stylesheet = _qt_get_stylesheet(getattr(self.mne, 'theme', 'auto'))
File "/Users/tarek/opt/anaconda3/envs/mne/lib/python3.10/site-packages/mne/viz/backends/_utils.py", line 235, in _qt_get_stylesheet
icons_path = _qt_init_icons()
NameError: name '_qt_init_icons' is not definedDue to this error, the raw browser can't open.
Steps to reproduce
Independent of the data set used, calling the raw.plot() method on MacOS with the OS theme set to dark will cause the described error, crashing the raw browser.
Expected results
The raw browser should open itself on method call raw.plot() as it is working when the MacOS theme is set to light.
Additional information
This code causes the error (/mne/viz/backends/_utils.py:235):
def _qt_get_stylesheet(theme):
from ...fixes import _compare_version
from ...utils import logger, warn, _validate_type
_validate_type(theme, ('path-like',), 'theme')
theme = str(theme)
system_theme = None
if theme == 'auto':
theme = system_theme = _qt_detect_theme()
if theme in ('dark', 'light'):
if system_theme is None:
system_theme = _qt_detect_theme()
if sys.platform == 'darwin' and theme == system_theme:
from qtpy import QtCore
try:
qt_version = QtCore.__version__ # PySide
except AttributeError:
qt_version = QtCore.QT_VERSION_STR # PyQt
if theme == 'dark' and _compare_version(qt_version, '<', '5.13'):
# Taken using "Digital Color Meter" on macOS 12.2.1 looking at
# Meld, and also adapting (MIT-licensed)
# https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/qdarkstyle/dark/style.qss # noqa: E501
# Something around rgb(51, 51, 51) worked as the bgcolor here,
# but it's easy enough just to set it transparent and inherit
# the bgcolor of the window (which is the same). We also take
# the separator images from QDarkStyle (MIT).
icons_path = _qt_init_icons() # <--- NameError: name '_qt_init_icons' is not defined
stylesheet = """\
...mne.sys_info()
Platform: macOS-12.2-x86_64-i386-64bit
Python: 3.10.4 | packaged by conda-forge | (main, Mar 24 2022, 17:45:10) [Clang 12.0.1 ]
Executable: /Users/tarek/opt/anaconda3/envs/mne/bin/python
CPU: i386: 8 cores
Memory: 16.0 GB
mne: 1.0.2
numpy: 1.21.6 {blas=NO_ATLAS_INFO, lapack=lapack}
scipy: 1.8.0
matplotlib: 3.5.2 {backend=module://backend_interagg}
sklearn: 1.0.2
numba: 0.55.1
nibabel: 3.2.2
nilearn: 0.9.1
dipy: 1.5.0
cupy: Not found
pandas: 1.4.2
pyvista: 0.34.0 {OpenGL 4.1 Metal - 76.3 via Apple M1 Pro}
pyvistaqt: 0.9.0
ipyvtklink: 0.2.2
Quick Fix: How To 😉
- Set your MacOS theme to
lightto avoid getting into the erroneousif theme == 'dark'clause. - Done ;)