Date post: | 13-Apr-2017 |
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PYTHON AND ITS APPLICATIONS
CONTENTS
What is Python? Features Hello World :) More Features Few comparison of codes in C++, Java and Python. Applications for Python Applications of Python
What is Python?Of course, I am not talking about snake.Python is a clear and Powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, Java or C#.
Features
Uses an elegant syntax, making the programs you write easier to read. Easy-to-use Language. Comes with a large standard library that supports many
common programming tasks such as connecting to web, searching text with regular expressions, reading and modifying files.
Runs anywhere. Including Mac OS, Windows, Linux and Unix. Free language in two ways: First, it doesn't cost a single penny and
second can be freely modified and redistributed.
Hello World! :)
Just one line:- print("Hello World")
More Features
Variety of basic data types available: numbers, strings, lists and dictionaries.
Supports OOPs with classes and Multiple Inheritance. Codes can be grouped into modules and packages. Modules can be made in C or C++ or any other language. Has Automatic Memory Management. Frees us from manually allocate
and free memory in your code. Cheers! Nothing like malloc() or free() that is used in C. Yeah!
Already in love with Python <3
Hello World
C++#include<iostream>using namespace std;int main(){cout << "Hello World!";return 0;}
Javapublic class HelloWorld{ public static void main(String[] args) { System.out.println("Hello World"); }}
Pythonprint("Hello World")
Swap Numbers
C++#include <iostream>
using namespace std;
int main()
{
int x = 5, y = 10, temp;
temp = x;
x = y;
y = temp;
return 0;
}
Javaclass SwapNumbers{ public static void main(String args[]) { int x = 5, y = 5, temp;
temp = x; x = y; y = temp;
}}
Pythonx = 5
y = 10
x,y = y,x
Printing Pattern
C++#include<iostream>using namespace std;int main(){ for( int i = 0; i < 5; i++) { for( int j = 0; j <=5; j++) cout << "*"; cout << "\n"; }return 0;};
Javapublic class JavaProgram{ public static void main(String args[]) { int i, j; for(i=0; i<5; i++) { for(j=0; j<=i; j++) { System.out.print("* "); } System.out.println(); } }}
Pythonfor i in range(0, 5):
for j in range(0, i+1):
print("*", end="")
print()
Applications for Python
Web and Internet Development Frameworks such as Django Micro Frameworks such as Flask.
Internet Protocols HTML and XML E-mail Processing
More Libraries Requests(a powerful HTTP client library) and BeautifulSoup(a HTML
parser that handles all sort of oddball HTML)
GooglePython provides the power behind the most popular search engine in the world – Google. The programming language can handle the traffic and computing needs of the search engine and its connected apps.
Some more Applications for Python
Scientific and Numeric Scipy (collection of packages for mathematics, science and engineering) Raspberry pi (used to design Robots) Pandas (daily analysis and modeling library)
Desktop GUIs Tk GUI library Kivy (for writing multi touch applications)
RoboticsRaspberry pi can be used as a brain to the robot to perform various actions and to react to the environment and the coding on a Raspberry pi can be done using python.
GUI development To develop a cross-platform desktop application python can be used. Python has modules Tkinter, PyQt to support it.
Applications of Python
Web Crawler Using library's like BeautifulSoup
Web Development Using Libraries like Django and Flask
Data Structures and Algorithms Using Libraries
Plugin Library
Some more Applications of Python
Data Science Got some knowledge of Machine Learning and AI? You can
implement some algos to build your own. Networking
Implement some protocols SMTP, FTP, HTTP Cryptography
Encrypt and decrypt library, something like, RSA, RC4, DES Computer Vision
Computer VisionYou can do interesting things such as Face detection, Color detection using Opencv with python
Machine LearningPython can be used to do cool things such as predicting stocks, fingerprint identification, spam detection etc. using machine learning. Python has modules scikit-learn, theano, tensorflow to support it. Currently Deep Learning is all the hype and Tensorflow has support for Deep Learning.
A few more
Artificial Intelligence SimpleAI EasyAI
Games Pygame, A few are very popular: Pixel Man, Too many Troopers
PygameA video game being developed by using Pygame
Some Interesting Applications
A great fan of TV Series or Anime? Python can download all this for you automatically.
Cricket Lover? Need score Updates? Python delivers all that quickly and free. :)
Have a messy collection of folders? Let Python arrange it for you. :) Get news Updates. Got many movies, don't know where to start from? Simple solution.
Write a python script to organize movies as per IMDB ratings. (And that’s too in a few lines of code.)
A few more
Bored of the same wallpaper on the background? Ask python to download Bing images for you. Or download Pics from Instagram.
Create a file Server with just one line of code: python -m SimpleHTTPServer #default port 8080
Turtle: Python has built in turtle. Enjoy your childhood.
TurtleA beautiful image created using Turtle module in Python
One More, Very Important
Post feed automatically on Facebook. ;)
“
”Happy Birthday, Someone!
Did you received Happy Birthday posts from me on Facebook? ;)Sorry for that.
“
”Thank You!
ANY QUESTIONS?
PS: This is not Python Generated Page. ;) And the PowerPoint presentation too. :)
Abhijeet Pratap Singh
CSE15U002IIIT Trichy