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Add a simple wrapper around Qt's app.exec_().

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This improves faulthandler tracebacks.
This commit is contained in:
Florian Bruhin 2014-10-14 21:25:21 +02:00
parent fed1566370
commit 9c3650296c
1 changed files with 6 additions and 1 deletions
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7
qutebrowser/qutebrowser.py
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@ -106,6 +106,11 @@ def main():
from qutebrowser import app from qutebrowser import app
import PyQt5.QtWidgets as QtWidgets import PyQt5.QtWidgets as QtWidgets
app = app.Application(args) app = app.Application(args)
def qt_mainloop():
"""Simple wrapper to get a nicer stack trace for segfaults."""
return app.exec_() # pylint: disable=maybe-no-member
# We set qApp explicitely here to reduce the risk of segfaults while # We set qApp explicitely here to reduce the risk of segfaults while
# quitting. # quitting.
# See https://bugs.launchpad.net/ubuntu/+source/python-qt4/+bug/561303/comments/7 # See https://bugs.launchpad.net/ubuntu/+source/python-qt4/+bug/561303/comments/7
@ -113,6 +118,6 @@ def main():
# seems this still reduces segfaults. # seems this still reduces segfaults.
# FIXME: We should do another attempt at contacting upstream about this. # FIXME: We should do another attempt at contacting upstream about this.
QtWidgets.qApp = app QtWidgets.qApp = app
ret = app.exec_() ret = qt_mainloop()
QtWidgets.qApp = None QtWidgets.qApp = None
return ret return ret