I'm trying to make a PySide application. I've watched some tutorials to try to solve the problem but none worked and i do not have any errors in my code.
Here's the file where i'd do the scripting
main.py
import sys
from PySide import QtGui
from ui import Ui_Form
class Main(QtGui.QMainWindow):
def __init__(self):
super(QtGui.QMainWindow)
self.ui = Ui_Form()
self.ui.setupUi(self)
if __name__ == '__init__':
app = QtGui.QApplication(sys.argv)
wid = QtGui.QWidget()
wid.resize(250, 150)
wid.setWindowTitle('Simple')
wid.show()
sys.exit(app.exec_())
It has to be '__main__'
if __name__ == '__main__':
You have class Main() but you don't use it
wid = Main()
You have to execute super() in correct way
super(Main, self).__init__()
BTW: and you have wrong indentions inside class
Working example - without ui because I don't have it - but it shows window.
from PySide import QtGui
import sys
#from ui import Ui_Form
class Main(QtGui.QMainWindow):
def __init__(self):
super(Main, self).__init__()
#self.ui = Ui_Form()
#self.ui.setupUi(self)
self.resize(250, 150)
self.setWindowTitle('Simple')
self.show()
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
wid = Main()
sys.exit(app.exec_())
Well i just realized that i never actually ran self.show().
Problem solved
Related
import sys
from PySide2.QtCore import QFile
from PySide2.QtWidgets import QApplication, QMainWindow
from PySide2.QtUiTools import QUiLoader
class MyMainWindow(QMainWindow):
def __init__(self):
super().__init__()
loader = QUiLoader()
self.ui = loader.load("mainWindow.ui", self)
self.ui.pushButton_call_dialog.clicked.connect(self.call_dialog)
self.ui.close()
self.ui.show()
def call_dialog(self):
loader = QUiLoader()
self.dialog = loader.load("dialog.ui")
self.dialog.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MyMainWindow()
window.show
sys.exit(app.exec_())
Hi everyone,
any idea why the second (dialog) window closes the entire application?
Of course, it is not a crash since i'm getting a message saying:
Process finished with exit code 0
Thanks for your help
You could handle your QDialog on a separate class, and then make them interact only, the structure might change a bit, but you can see if it's a viable answer:
import sys
from PySide2.QtWidgets import *
class MyWindow(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
button = QPushButton("Dialog")
button.clicked.connect(self.open_dialog)
self.setCentralWidget(button)
def open_dialog(self):
dialog = MyDialog()
dialog.show()
dialog.exec_()
class MyDialog(QDialog):
def __init__(self):
QDialog.__init__(self)
button = QPushButton("Close")
button.clicked.connect(self.close_dialog)
layout = QHBoxLayout()
layout.addWidget(button)
self.setLayout(layout)
def close_dialog(self):
self.close()
if __name__ == "__main__":
app = QApplication()
m = MyWindow()
m.show()
sys.exit(app.exec_())
Just notice that you should include the setUp step on each class.
Hope it helps.
To put the dialog into a separate class didn't work for either.
Every time the Dialog.close() event was called, it closes the whole application.
What worked for me, was to use hide() instead
I have trouble adding item in listWidget
I made UI with QT creator and want to import it in python.
When I run this code the items doesn't shows in listWidget, only white blanks.
what is the problem??
please help me
my code is
import sys
from PyQt4 import QtCore, QtGui
from secdialog import Ui_SecDialog
class SecDialog(QtGui.QDialog, Ui_SecDialog):
def __init__(self, parent=None):
QDialog.__init__(self, parent)
self.setupUi(self)
self.listWidget.addItem("QlistItem_1");
self.listWidget.addItem("QlistItem_2");
self.listWidget.addItem("QlistItem_3");
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
ex = Ui_SecDialog()
ex.show()
sys.exit(app.exec_())
You create an instance of Ui_SecDialog in ex but you want to create a SecDialog instance:
ex = SecDialog()
I'm writing a program which will have multiple windows. I have a main program (attached) that calls the Ui files (that have been converted into .py). The main window and customise window open correctly (the first two listed) but neither the third or fourth windows open correctly, giving me the error
'Ui_MainWindow' object has no attribute 'show'
The main program;
from PyQt4 import QtCore, QtGui
import sys
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
mainwin = main_menu_ui.Ui_MainWindow()
mainwin.show()
sys.exit(app.exec_())
def openCustomise(self):
customiseOpen = question_set_menu_ui.Ui_MainWindow()
customiseOpen.show()
sys.exit(app.exec_())
def openQuiz(self):
quizOpen = quiz_window_ui.Ui_MainWindow()
quizOpen.show()
sys.exit(app.exec_())
def addNewSet(self):
addNewOpen = question_set_edit_ui.Ui_MainWindow()
addNewOpen.show()
sys.exit(app.exec_())
Sorry if I'm missing something obvious, I'm learning Qt/Python for college.
The auto-generated UI class that you are importing extends object and doesn't have a show method (open up the .py file for yourself and verify this).
In general, you should structure your GUIs like this:
from PyQt4 import QtCore, QtGui
import sys
from layout_file import main_menu_ui
class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = main_menu_ui()
self.ui.setupUi(self)
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
mainwin = MyForm()
mainwin.show()
sys.exit(app.exec_())
You import your UI from your autogenerated UI file. You have a class that contains your GUI logic. It then sets up your UI layout from your imported UI in its __init__() method.
I'd like to make a panel-like application using PyQt4 for Linux. for this i need the window i created:
to be undecorated
to have reserved space
to appear on all workspaces
From reading the documentation i've got the idea that i should use QtWindowFlags. But i have no clue as to how to do that. Also i believe there should be a Qt.WindowType hint somewhere telling the WM the window's a "dock" application. I have made this with pygtk following this thread, but here with Qt i don't really know how to handle this. (I need Qt for its ability to theme/skin application more easily.)
Below is the current code i made (nothing extraordinary).
import sys
from PyQt4 import QtGui
class Panel(QtGui.QWidget):
def __init__(self, parent=None): ## should the QtWindowFlag be here?
QtGui.QWidget.__init__(self, parent) ## should the QtWindowFlag be there as well?
self.setWindowTitle('QtPanel')
self.resize(QtGui.QDesktopWidget().screenGeometry().width(), 25)
self.move(0,0)
def main():
app = QtGui.QApplication(sys.argv)
panel = Panel()
panel.show()
sys.exit(app.exec_())
return 0
if __name__ == '__main__':
main()
Can anyone help me with this? Thanks :)
Read about the QWidget.windowFlags property: http://doc.qt.nokia.com/4.7/qwidget.html#windowFlags-prop
Example:
>>> from PyQt4 import QtGui, QtCore
>>> app = QtGui.QApplication([])
>>> win = QtGui.QMainWindow()
>>> win.setWindowFlags(win.windowFlags() | QtCore.Qt.FramelessWindowHint)
>>> win.show()
import sys
from PyQt4 import QtGui, QtCore
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
qbtn = QtGui.QPushButton('Quit', self)
#qbtn.clicked.connect(QtCore.QCoreApplication.instance().quit)
qbtn.clicked.connect(self.test)
qbtn.resize(qbtn.sizeHint())
qbtn.move(50, 50)
self.setGeometry(300, 300, 250, 150)
self.setWindowTitle('Quit button')
self.setWindowFlags(self.windowFlags() | QtCore.Qt.FramelessWindowHint)
self.show()
def test(self):
print "test"
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
The solution is to use Python-Xlib, and it has been described in an answer on a universal way to reserve screen space on X.
Please can someone tell me what im doing wrong here with respect to calling pwTxt.text.
#!/usr/bin/python
import sys
from PyQt4 import QtCore, QtGui
from mainwindow import Ui_MainWindow
class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
def on_pwExtract_pressed(self):
print self.pwTxt.text
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = MyForm()
myapp.show()
sys.exit(app.exec_())
The line print self.pwTxt.text fails because it can't find the widget, pwTxt is a QLineEdit defined on the main window. I just made it in QTDesigner and generated python code with pyuic4.
How do I correctly reference other widgets on the same window, in this case I just want to get the text from a QLineEdit named pwTxt when the QPushButton pwExtract is pressed.
Thanks a lot.
Try:
print self.ui.pwTxt.text()