PyQt :
Developing PyQt applications for Maya is basically divided into three parts :

1. Interface - developed in QT Designer.
2. Framework /
Application code - written in Python editor.
3. Maya Code - written in Maya to call framework/application.


1. Interface - create desired interface in QT Designer and save it as "interfaceUI.ui"

2. Framework: save following code as - "filename.py"


from PyQt4 import QtGui, QtCore, uic
from pymel.core import *
import pymel.core as pm

# Path to the Qt Designer UI file
ui_filename = 'C:/QtSDK/interfaceFile.ui'
form_class, base_class = uic.loadUiType(ui_filename)

# Interface Class
class Exporter(base_class, form_class):

def __init__(self):
super(base_class,self).__init__()
self.setupUi(self)
self.setObjectName('WindowName')
self.setDockNestingEnabled(True)


# Main
def main ():
global ui
ui = Exporter()
ui.show()

if __name__ == "__main__":
main()



3. Maya Calling Code :

import sys
Dir = 'c:/QtSDK/test'
if Dir not in sys.path:
sys.path.append(Dir)
try:
reload(filename)
except:
import filename
filename.main()

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