How to install pyqt4 on ubuntu linux

Install and run "hello world" example

• Install it
  

sudo apt-get install python-qt4

• Create a file ~/tmp/helloworld.py

import sys
from PyQt4.QtGui import *
app = QApplication(sys.argv)
button = QPushButton("Hello World", None)
button.show()
app.exec_()

• Run it:

python ~/tmp/helloworld.py

You should see a window with a single button pop up.

Install additional examples

• For more examples, install the python-qt4-doc package: 
  

sudo apt-get install python-qt4-doc

• After installation, the examples are located at: 

/usr/share/doc/python-qt4-doc/examples