Beginning python programming

Beginning python programming

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  Beginning Python Programming Kantesh Raj (@kanteshraj)
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  Quick Question Name major programming languages taught at school or colleges ?
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  According to myknowledge ● C ● C++ ● Java ● PHP / ASP.NET (Few Places)
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  Then.... Why we need python? Lets do a simple activity for this
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  Activity Write a codefor “Hello World” in any language you like, other than python
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  Hello World Programin C #include <stdio.h> main() { printf(“Hello World”); } // No. Of Lines Of Code: 5
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  How many linesof code you wrote ?
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  Now, Hello World programin Python
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  print “Hello World”
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  What is Python? ●Python is dynamic, open source programming language with a focus on simplicity and productivity. ● It was developed in 1991
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  Who is he?
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  Who is he? Guidovan Rossum Creator of Python
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  Python ● Interpreter Based language ● Designed to be easy to learn and master -> clear syntax -> Very few keyword ● Highly portable -> Run on all platform(OS) ● Large set of library -> libraries for huge number of software
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  Can Do ● System Administration ● GUI programming ● Web Application ● Database Apps ● Scientific Application ● Games ● Android App development
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  Getting Familiar withpython ● Extension for python file : .py ● For example Hello.py ALiAS.py
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  No Semicolons print “HelloEveryone” print 2+2
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  Indentation ● File: HelloWrong.py print “Hello” print “World” ● File: HelloCorrect.py print “Hello” print “World”
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  No variable datatype declaration x=5 print x print x*9 ● Python will do it for you :)
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  Input from keyboard ● Function for that: raw_input() ● It always return string type ● Example: x=raw_input(“Enter number”) print x y=int(x)+2 print y print “the final value is ”+str(y)
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  It will makeyour work easy ● bpython ● ipython
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  Demo 1 Program totake input from user and print “python is awesome”, if user enter number less than 5 otherwise print “Hello ALiAS”.
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  Demo 2 ● Writea function for printing value from array using for loop. ● Use above function in other program by help of import.
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  Demo 3 ● Program to create a file in python and write “this is python basic session.”
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  Demo 4 ● Python program for listing file in home directory
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  Where to refer? ● Python Website: documentation http://www.python.org/ ● Dive into python:ebook http://www.diveintopython.net ● How to think like a computer scientish: ebook http://www.greenteapress.com/
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  PyCon http://in.pycon.org/2012/
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  Any Question ?
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  About Me ● Name: Kantesh Raj ● Twitter: @kanteshraj ● Blog: kanteshraj.blogspot.in Thank You