![Scientific Programming
An example----Numpy provides Mathematical Functions
>>> from numpy import *
>>> a = arange(15).reshape(3, 5)
>>> a
array([[ 0, 1, 2, 3, 4],
[ 5, 6, 7, 8, 9],
[10, 11, 12, 13, 14]])
>>> a.shape
(3, 5)
>>> a.ndim
2
>>> a.dtype.name
'int32‘
>>> a.size
15
>>> type(a)
numpy.ndarray](https://image.slidesharecdn.com/pythonadvancedconcepts-181220172405/85/Advanced-Concepts-in-Python-3-320.jpg)
Advanced Concepts in Python
- 2. Advanced Concepts in Python 1.Scientific Programming 2.Graphics Programming 3.Network Programming 4.GUI Programming 5.Web Programming
- 3. Scientific Programming An example----Numpy provides Mathematical Functions >>> from numpy import * >>> a = arange(15).reshape(3, 5) >>> a array([[ 0, 1, 2, 3, 4], [ 5, 6, 7, 8, 9], [10, 11, 12, 13, 14]]) >>> a.shape (3, 5) >>> a.ndim 2 >>> a.dtype.name 'int32‘ >>> a.size 15 >>> type(a) numpy.ndarray
- 4. Graphics Programming Circle Example from graphics import * win=GraphWin("Circle",300,300) pt=Point(200,200) pt.setOutline("yellow") pt.draw(win) cir=Circle(pt,55) cir.setOutline("blue") cir.setFill(“pink") cir.draw(win) win.getMouse() win.close()
- 5. Network Programming Server Program import socket # Import socket module s = socket.socket() # Create a socket object host = socket.gethostname() # Get local machine name port = 12345 # Reserve a port for your service. s.bind((host, port)) # Bind to the port s.listen(5) # Now wait for client connection. while True: c, addr = s.accept() # Establish connection with client. print 'Got connection from', addr c.send('Thank you for connecting') c.close() # Close the connection
- 6. Network Programming Client Program import socket # Import socket module s = socket.socket() # Create a socket objecthost = socket.gethostname() # Get local machine name port = 12345 # Reserve a port for your service. s.connect((host, port)) print s.recv(1024) s.close( ) # Close the socket when done Run Server and Client $ python server.py # Once server is started run client as follows: $ python client.py This would produce following result: Got connection from ('127.0.0.1', 48437) Thank you for connecting
- 7. GUI Programming #Example for Button import Tkinter import tkMessageBox top = Tkinter.Tk() def helloCallBack(): tkMessageBox.showinfo( "Hello Python", "Hello World") B = Tkinter.Button(top, text ="Hello", command = helloCallBack) B.pack() top.mainloop()
- 8. Web Programming #Example for Button <form action="/cgi-bin/hello_get.py" method="get"> First Name: <input type="text" name="first_name"> <br /> Last Name: <input type="text" name="last_name" /> <input type="submit" value="Submit" /> </form>
- 9. Web Programming hello_get.py import cgi, cgitb # Create instance of FieldStorage form = cgi.FieldStorage() # Get data from fields first_name = form.getvalue('first_name') last_name = form.getvalue('last_name') print "Content-type:text/htmlrnrn" print "<html>" print "<head>" print "<title>Hello - Second CGI Program</title>" print "</head>" print "<body>" print "<h2>Hello %s %s</h2>" % (first_name, last_name) print "</body>” print "</html>“ This would generate the following result: Hello ShanmugaPriyan NandhanaShri