[Tutor] Trouble with "RuntimeError: underlying C/C++ object has been deleted".
Hello List, I am just learning Python/PyQt4, and have a problem I cannot figure out. Here's what happens. Traceback (most recent call last): File "iac.py", line 124, in on_actionOpen_triggered self.open() File "iac.py", line 66, in open if self.isUntitled and self.textBrowser.document().isEmpty() and not self.isWindowModified(): RuntimeError: underlying C/C++ object has been deleted I have copied several parts of other programs, so that's probably where this is coming from. All I want is to load a .txt file into self.textBrowser, so some of the functionality is unneeded at this time, except for filter saving and loading. If someone understands what is going on, that would be great! Files are attached. Thanks! Lawrence iac.py Description: application/python filterEdit_ui.py Description: application/python iac_ui.py Description: application/python ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Trouble with "RuntimeError: underlying C/C++ object has been deleted".
Hello List, I am just learning Python/PyQt4, and have a problem I cannot figure out. Here's what happens. Traceback (most recent call last): File "iac.py", line 124, in on_actionOpen_triggered self.open() File "iac.py", line 66, in open if self.isUntitled and self.textBrowser.document().isEmpty() and not self.isWindowModified(): RuntimeError: underlying C/C++ object has been deleted I have copied several parts of other programs, so that's probably where this is coming from. All I want is to load a .txt file into self.textBrowser, so some of the functionality is unneeded at this time, except for filter saving and loading. If someone understands what is going on, that would be great! The source can be downloaded from here http://lawrence.orbwireless.net/iac_src.tar.gz Thanks! Lawrence ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] underlying C/C++ object has been deleted
I am trying to convert a program with hand coded QT over to using UI
files from QT Designer. I am getting the error below and do not
understand what's going on. I have a feeling I need to add self. to
something in here, but I'm not sure what. Is this enough code for you to
see whats going on?? If not I can upload the project somewhere. Thanks,
Lawrence
The error,
Traceback (most recent call last):
File "atf.py", line 113, in on_actionOpen_triggered
self.open()
File "atf.py", line 56, in open
if self.isUntitled and self.textBrowser.document().isEmpty() and not
self.isWindowModified():
RuntimeError: underlying C/C++ object has been deleted
Here is the first part of the code.
#!/usr/bin/env python
# iaC.py - A Qt4 Calculator example
import sys
from math import pi
from PyQt4 import QtCore, QtGui
from iac_ui import Ui_mainWindow
from filterEdit2_ui import Ui_filterEdit
class iaC(QtGui.QMainWindow):
sequenceNumber = 1
windowList = []
@QtCore.pyqtSignature("")
def __init__(self, fileName=None, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.init()
if fileName:
self.loadFile(fileName)
else:
self.setCurrentFile(QtCore.QString())
self.ui = Ui_mainWindow()
self.ui.setupUi(self)
# Set up delete, up, and down buttons on the main
form==
if self.ui.listWidget.count() < 1:
self.ui.deleteButton.setEnabled(False)
else:
self.ui.deleteButton.setEnabled(True)
if self.ui.listWidget.count() < 2:
self.ui.upButton.setEnabled(False)
self.ui.downButton.setEnabled(False)
else:
self.ui.downButton.setEnabled(True)
self.ui.upButton.setEnabled(True)
# Save settings on
close?===
def closeEvent(self, event):
if self.maybeSave():
self.writeSettings()
event.accept()
else:
event.ignore()
# ===Open File=
@QtCore.pyqtSignature("")
def open(self):
fileName = QtGui.QFileDialog.getOpenFileName(self)
print "Loading fileName", fileName
if not fileName.isEmpty():
if self.isUntitled and self.textBrowser.document().isEmpty()
and not self.isWindowModified():
self.loadFile(fileName)
else:
other = MainWindow(fileName)
if other.isUntitled:
del other
return
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] underlying C/C++ object has been deleted
Here's the whole code. Any help appreciated!
http://shaferlabs.pastebin.com/m32c82193
Also I was thinking I could set the progressbar to 64% like this.
self.progressBar.setProperty("value",QtCore.QVariant(64))
but it doesn't work. (AttributeError: progressBar) I think it has
something to do with some stupid way I'm initializing the iac_ui.py
file. Like I said, I'm not used to QTDesigner and complex programs like
this. Again, any help appreciated!
Lawrence Shafer wrote:
> I am trying to convert a program with hand coded QT over to using UI
> files from QT Designer. I am getting the error below and do not
> understand what's going on. I have a feeling I need to add self. to
> something in here, but I'm not sure what. Is this enough code for you to
> see whats going on?? If not I can upload the project somewhere. Thanks,
> Lawrence
>
> The error,
>
> Traceback (most recent call last):
> File "atf.py", line 113, in on_actionOpen_triggered
> self.open()
> File "atf.py", line 56, in open
> if self.isUntitled and self.textBrowser.document().isEmpty() and not
> self.isWindowModified():
> RuntimeError: underlying C/C++ object has been deleted
>
>
> Here is the first part of the code.
>
> #!/usr/bin/env python
> # iaC.py - A Qt4 Calculator example
>
> import sys
> from math import pi
> from PyQt4 import QtCore, QtGui
> from iac_ui import Ui_mainWindow
> from filterEdit2_ui import Ui_filterEdit
>
>
> class iaC(QtGui.QMainWindow):
> sequenceNumber = 1
> windowList = []
>
> @QtCore.pyqtSignature("")
> def __init__(self, fileName=None, parent=None):
> QtGui.QMainWindow.__init__(self, parent)
>
> self.init()
> if fileName:
> self.loadFile(fileName)
> else:
> self.setCurrentFile(QtCore.QString())
>
> self.ui = Ui_mainWindow()
> self.ui.setupUi(self)
>
> # Set up delete, up, and down buttons on the main
> form==
> if self.ui.listWidget.count() < 1:
> self.ui.deleteButton.setEnabled(False)
> else:
> self.ui.deleteButton.setEnabled(True)
>
> if self.ui.listWidget.count() < 2:
> self.ui.upButton.setEnabled(False)
> self.ui.downButton.setEnabled(False)
> else:
> self.ui.downButton.setEnabled(True)
> self.ui.upButton.setEnabled(True)
>
> # Save settings on
> close?===
> def closeEvent(self, event):
> if self.maybeSave():
> self.writeSettings()
> event.accept()
> else:
> event.ignore()
>
> # ===Open File=
> @QtCore.pyqtSignature("")
> def open(self):
> fileName = QtGui.QFileDialog.getOpenFileName(self)
> print "Loading fileName", fileName
> if not fileName.isEmpty():
>
> if self.isUntitled and self.textBrowser.document().isEmpty()
> and not self.isWindowModified():
> self.loadFile(fileName)
> else:
> other = MainWindow(fileName)
> if other.isUntitled:
> del other
> return
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
>
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] os.sys
Why doesn't this fill otp with the output of ls?? (I know python has it's own file tools, I'm just playing around ;) import os cmd="""ls""" otp=os.system(cmd) print otp ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] importing
What is the difference between "from name import *" and "import name"? The reason I ask is because I was using the former, and switched to the latter only to find out "NameError: global name 'name' is not defined" and I think using the latter is going to fix another problem I have. I just want to know what's going on and how to work with it. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] comparing dates
How would I compare these two dates and extract the difference in H:M:S?? 22 Nov 2007 18:54:07 23 Nov 2007 23:24:23 Cheers, Lawrence ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
