These were the slides used in my talk at conf.kde.in 2011.

1. Python.__init__(Qt)
Dinesh

2. Why ANOTHER Language?
● Whats there in a language?
- a few keywords and a little bit of grammar
● Then why NOT C/C++ ?
- developing in Python is way faster!- lot less hassle ?- you wouldn't want to use a canon
to kill a mosquito ;)
● Even then, why Python!?
- Easy , Extensible, Everywhere!

3. So what IS Python?
● Interpreted Language :) (no more autotools, awk , cmake , qmake madness!)
- But its an INTERPRETED Language!! :S
● Dynamically typed language. (no more int, char, float, etc.. ?!)
● Its Mixable. (You dont really have to build a class to print hello world)
● Indentation (and HENCE, the Beauty of your code!) Counts!
● Try using " help() " whenever needed...

4. Python's keywords
and del from not while
as elif global or with
assert else if pass yield
break except import print class
exec in raise continue finally
is return def for lambda
try

5. Python's Core Datatypes
Object type Example
1234, 4, 999L , 3+ 4j , ..
Numbers
" Hello" , 'There' , ''' :) '''
Strings
[1 , [2 , "Three"], 4]
Lists
{"Food" : 1 , :"Tastes" : "Good":}
Dictionaries
(1 , "Is" , 'one' )
Tuples
myfile = open ("door", 'r' )
Files
Sets , Types, None , Booleans
Other types

6. Operators
Unary + - ~
**
* / %
+ - Arithmetic , Boolean , Relational and Bitwise
operators are all left to right associated
>> <<
On the other hand, the assignment operator is
&
right associated
^
9/3*3=9
|
< <= == >= > != <> is
not
and
*when confused, simply use parenthesis :)
or

7. Hello Qt
from PySide.QtGui import *
import sys
#Create a new application for me to work on
myApplication = QApplication ( sys.argv )
#A new push button with a Label!
hello = QPushButton ( " Hi There " )
#Show the button!!
hello.show()
#run my application
myApplicatioin.exec_()