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qt gui: (maybe fix) opening "Preferences" segfaults on macOS for some #7727

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Mar 22, 2022
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qt gui: (maybe fix) opening "Preferences" segfaults on macOS for some #7727

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8 changes: 8 additions & 0 deletions electrum/gui/qt/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,14 @@
from PyQt5.QtCore import QObject, pyqtSignal, QTimer, Qt
import PyQt5.QtCore as QtCore

try:
# Preload QtMultimedia at app start, if available.
# We use QtMultimedia on some platforms for camera-handling, and
# lazy-loading it later led to some crashes. Maybe due to bugs in PyQt5. (see #7725)
from PyQt5.QtMultimedia import QCameraInfo; del QCameraInfo
except ImportError as e:
pass # failure is ok; it is an optional dependency.

from electrum.i18n import _, set_language
from electrum.plugin import run_hook
from electrum.base_wizard import GoBack
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