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#+AUTHOR: FOSSEE

#+DATE: 2010-09-14 Tue

#+EMAIL:     info@fossee.in

#+DESCRIPTION: 

#+KEYWORDS: 

#+LANGUAGE:  en

#+OPTIONS:   H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t

#+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc

* Outline 

** Datatypes in Python

    - Numbers

    - Boolean

    - Sequence

**  Operators in Python

    - Arithmetic Operators

    - Boolean Operators

** Python Sequence Datatypes

   - list

   - string

   - tuple

* Numbers

  - Integers

  - Float

  - Complex

* Question 1

   - Find the absolute value of 3+4j 

* Solution 1

        abs(3+4j)

* Question 2

  - What is the datatype of number 999999999999999999? Is it

not int?

* Solution 2

        - Long

        - Large integers numbers are internally stored in python

        as Long datatype.  

* Boolean

  #+begin_src python

    In []: t=True

    In []: f=False

  #+end_src

* Question 1

  - Using python find sqaure root of 3?

* Solution 1

  - 3**0.5

* Question 2

  - Is 3**1/2 and 3**0.5 same

* Solution 2

  - No,One gives an int answer and the other float        

* Sequence Data types

** Properties

 - Data in Sequence 

 - Accessed using Index

** Type

 - list

 - String

 - Tuple

* All are Strings

   #+begin_src python 

      k='Single quote'

      l="Double quote contain's single quote"

      m='''"Contain's both"'''

    #+end_src 

* Immutabilty Error

   #+begin_src python

      In []: greeting_string[1]='k'

      ---------------------------------------------------------------------------

      TypeError                                 Traceback (most recent call       last)

      /home/amit/st-scripts/basic-data-type/<ipython console> in <module>()

      TypeError: 'str' object does not support item assignment

   #+end_src 

* Question 1

   - Check if 3 is an element of the list [1,7,5,3,4]. In case

it is change it to 21.

* Solution 1

     #+begin_src python

        l=[1,7,5,3,4]

        3 in l

        l[3]=21

        l

     #+end_src

* Question 2

  - Convert the string "Elizabeth is queen of england" to

"Elizabeth is queen"

* Solution 2

     #+begin_src python

    s="Elizabeth is queen of england"                                                                                                                 

    stemp=s.split()                                                                                                                                   

    ' '.join(stemp[:3])                                                                                                                               

    #+end_src 

* Summary 

   #+begin_src python 

    a=73

    b=3.14

    c=3+4j

   #+end_src

* Summary Contd.

   #+begin_src python

     t=True

     f=False

     t and f

   #+end_src

* Summary Contd.

   #+begin_src python 

     l= [2,1,4,3]

     s='hello'

     tu=(1,2,3,4)

   #+end_src

* Summary Contd.

   #+begin_src python 

     tu[-1]

     s[1:-1]

   #+end_src

* Summary Contd.

   #+begin_src python  

     Sorted(l)

   #+end_src

* Thank you!

#+begin_latex

  \begin{block}{}

  \begin{center}

  This spoken tutorial has been produced by the

  \textcolor{blue}{FOSSEE} team, which is funded by the 

  \end{center}

  \begin{center}

    \textcolor{blue}{National Mission on Education through \\

      Information \& Communication Technology \\ 

      MHRD, Govt. of India}.

  \end{center}  

  \end{block}

#+end_latex