Basic setup

In [ ]:

import sys
from PyQt5.QtWidgets import *

Documentation¶

https://doc.qt.io/

Procedural approach¶

In [ ]:

# Create app
app = QApplication(sys.argv)
# Create main window
dlgMain = QWidget() # dlgMain = QMainWindow()
# configure main window
dlgMain.setWindowTitle('My App')
# ...
# show main window
dlgMain.show()
# execute app
app.exec_()

Alternatively¶

In [ ]:

# Create app
app = QApplication(sys.argv)
# Create main window
dlgMain = QMainWindow() # or dlgMain = QWidget() 
# configure main window
dlgMain.setWindowTitle('My App')
# ...
# show main window
dlgMain.show()
# execute app
sys.exit(app.exec_())

Object oriented method¶

In [1]:

import sys
from PyQt5.QtWidgets import *

In [ ]:

# Create class
class DlgMain(QDialog):
    # __init__ function
    def __init__(self):
        super().__init__()
        # configure main window
        self.setWindowTitle("My App")


if __name__ == "__main__":
    app = QApplication(sys.argv)
    dlgMain = DlgMain()
    # show main window
    dlgMain.show()
    # execute app
    sys.exit(app.exec_())

Adding widget¶

In [2]:

# Create class
class DlgMain(QDialog):
    # __init__ function
    def __init__(self):
        super().__init__()
        # configure main window
        ## windows size
        self.resize(200,200)
        self.setWindowTitle("My App")
        # adding text entry
        self.leadtext = QLineEdit('My Text', self)
        self.leadtext.move(45,50)
        # Button
        self.btnupdate = QPushButton('Update window title', self)
        self.btnupdate.move(45,80)
        self.btnupdate.clicked.connect(self.evt_btnupdate_clicked)

    def evt_btnupdate_clicked(self):
        self.setWindowTitle(self.leadtext.text())
       


if __name__ == "__main__":
    app = QApplication(sys.argv)
    dlgMain = DlgMain()
    # show main window
    dlgMain.show()
    # execute app
    sys.exit(app.exec_())

An exception has occurred, use %tb to see the full traceback.

SystemExit: 0

c:\Users\ferra\anaconda3\lib\site-packages\IPython\core\interactiveshell.py:3452: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.
  warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)