def openButtonClicked(self):
"""Brings up an open dialogue"""
# By some unknown reasons the following simple way of getting a file is
# not working:
# fileName = QFileDialog.getOpenFileName(self, 'Open file',
# QDir.currentPath())
#
# There is however a workaround. Here it is:
dialog = QFileDialog(self)
if dialog.exec_() != QDialog.Accepted:
return
fileNames = dialog.selectedFiles()
fileName = str(fileNames[0])
if not os.path.exists(fileName):
QMessageBox.critical(
self, 'Error',
'The selected file (' + fileName + ') does not exist')
return
# Check that the file is a python one
warning = isPythonFile(fileName)
if warning is not None:
QMessageBox.critical(self, 'Error', warning)
return
# set the new file name
self.fName = fileName
self.updateWindowTitle()
# initiate the process
self.proceedWithFile()
def exceptionHook(excType, excValue, tracebackObj):
"""Catches unhandled exceptions"""
globalData = GlobalData()
# Keyboard interrupt is a special case
if issubclass(excType, KeyboardInterrupt):
if globalData.application is not None:
globalData.application.quit()
return
error = "%s: %s" % (excType.__name__, excValue)
stackTraceString = "".join(
traceback.format_exception(excType, excValue, tracebackObj))
# Save the traceback to a file explicitly together with a log window
# content.
excptFileName = SETTINGS_DIR + "unhandledexceptions.log"
try:
savedOK = True
with open(excptFileName, 'a', encoding=DEFAULT_ENCODING) as diskfile:
diskfile.write("------ Unhandled exception report at " +
str(datetime.datetime.now()) + "\n")
diskfile.write("Traceback:\n")
diskfile.write(stackTraceString)
diskfile.write("Log window:\n")
if globalData.mainWindow is not None:
# i.e. the log window is available, save its content too
logWindowContent = globalData.mainWindow.getLogViewerContent()
logWindowContent = logWindowContent.strip()
if logWindowContent:
diskfile.write(logWindowContent)
diskfile.write('\n')
else:
diskfile.write('Nothing is there\n')
else:
diskfile.write('Has not been created yet\n')
diskfile.write('------\n\n')
except:
savedOK = False
# This output will be to a console if the application has not started yet
# or to a log window otherwise.
logging.error('Unhandled exception is caught\n%s', stackTraceString)
# Display the message as a QT modal dialog box if the application
# has started
if globalData.application is not None:
message = "<html><body>"
if savedOK:
message += "Stack trace and log window content saved in " + \
excptFileName + ".<br>"
else:
message += "Failed to save stack trace and log window " \
"content in " + excptFileName + ".<br>"
lines = stackTraceString.split('\n')
if len(lines) > 32:
message += "First 32 lines of the stack trace " \
"(the rest is truncated):" \
"<pre>" + "\n".join(lines[:32]) + "<pre>"
else:
message += "Stack trace:" + \
"<pre>" + stackTraceString + "</pre>"
message += "</body></html>"
QMessageBox.critical(None, "Unhandled exception: " + error, message)
globalData.application.exit(1)