def qtMessageHandler(msg_type, msg_log_context, msg_string):
"""Forwards Qt messages to Python logging system."""
# Convert Qt msg type to logging level
log_level = [logging.DEBUG, logging.WARNING, logging.ERROR,
logging.FATAL][int(msg_type)]
qtcl = logging.getLogger(msg_log_context.category or "qt.???")
# Some information may not be available unless using a PyQt debug build.
# See: https://www.riverbankcomputing.com/static/Docs/PyQt5/api/qtcore/qmessagelogcontext.html
if QLibraryInfo.isDebugBuild():
qtcl.log(
logging.DEBUG, ' @ {0} : {1}'.format(
(msg_log_context.file or "<unknown source file>"),
msg_log_context.line))
qtcl.log(
logging.DEBUG, ' ! {0}'.format((msg_log_context.function
or "<unknown function>")))
qtcl.log(log_level, msg_string)
from PyQt5.QtCore import QLibraryInfo, QCoreApplication
from pprint import pprint
# QLibraryInfo isn't always valid until a QCoreApplication is
# instantiated.
app = QCoreApplication([])
paths = [x for x in dir(QLibraryInfo) if x.endswith('Path')]
location = {x: QLibraryInfo.location(getattr(QLibraryInfo, x)) for x in paths}
try:
version = QLibraryInfo.version().segments()
except AttributeError:
version = None
pprint({
'isDebugBuild': QLibraryInfo.isDebugBuild(),
'version': version,
'location': location,
})
