Linking a qtDesigner .ui file to python/pyqt?

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Question :

Linking a qtDesigner .ui file to python/pyqt?

So if I go into QtDesigner and build a UI, it’ll be saved as a .ui file. How can I make this as a python file or use this in python?

Asked By: Chris


Answer #1:

Another way to use .ui in your code is:

from PyQt4 import QtCore, QtGui, uic
class MyWidget(QtGui.QWidget)
    #somewhere in constructor:
    uic.loadUi('MyWidget.ui', self)

both approaches are good. Do not forget, that if you use Qt resource files (extremely useful) for icons and so on, you must compile it too:

pyrcc4.exe -o ui/ ui/images/images.qrc

Note, when uic compiles interface, it adds ‘import images_rc’ at the end of .py file, so you must compile resources into the file with this name, or rename it in generated code.

Answered By: Chris

Answer #2:

Combining Max’s answer and Shriramana Sharma’s mailing list post, I built a small working example for loading a mywindow.ui file containing a QMainWindow (so just choose to create a Main Window in Qt Designer’s File-New dialog).

This is the code that loads it:

import sys
from PyQt4 import QtGui, uic

class MyWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MyWindow, self).__init__()
        uic.loadUi('mywindow.ui', self)

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    window = MyWindow()
Answered By: Maxim Popravko

Answer #3:

You need to generate a python file from your ui file with the pyuic tool (site-packagespyqt4bin)

pyuic form1.ui >

with pyqt4

pyuic4.bat form1.ui >

Then you can import the form1 into your script.

Answered By: metakermit

Answer #4:

I found this article very helpful.

I’ll briefly describe the actions to create and change .ui file to .py file, taken from that article.

  1. Start Qt Designer from your start menu.
  2. From “New Form” window, create “Main Window”
  3. From “Display Widgets” towards the bottom of your “Widget Box Menu” on the left hand side
    add a “Label Widget”. (Click Drag and Drop)
  4. Double click on the newly added Label Widget to change its name to “Hello World”
  5. at this point you can use Control + R hotkey to see how it will look.
  6. Add buttons or text or other widgets by drag and drop if you want.
  7. Now save your form.. File->Save As-> “Hello World.ui” (Control + S will also bring up
    the “Save As” option) Keep note of the directory where you saved your “Hello World” .ui
    file. (I saved mine in (C:) for convenience)

The file is created and saved, now we will Generate the Python code from it using pyuic!

  1. From your start menu open a command window.
  2. Now “cd” into the directory where you saved your “Hello World.ui” For me i just had to
    “cd” and was at my “”C:&gt
    prompt, where my “”Hello World.ui”” was saved to.

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