Learnpython 151027174258-lva1-app6892

What is Python?
• Python is a general purpose interpreted
interactive object oriented and high level
programming language.
• It was first introduced in 1991 by Guido van
Rossum , a Dutch computer programmer.
• The language places strong emphasis on code
reliability and simplicity so that the
programmers can develop applications rapidly
10/27/15 yayavaram@yahoo.com

contd..
• Python is multi-paradigm programming
language ,which allows user to code in several
different programming styles.
• Python supports cross platform development
and is available through open source.
• Python is widely used for scripting in Game
menu applications effectively.

contd..
• Python can be easily integrated with C/C++
CORBA, ActiveX and Java.
• CPython is a python integrated with C/C++
language.
• Similarly JPython is a purely integrated
language where Java and Python code can
interchangeably use inline in the program.

Advantages of Python
• Most programs in Python require considerably
less number of lines of code to perform the
same task compared to other languages like
C .So less programming errors and reduces the
development time needed also.
• Though Perl is a powerful language ,it is
highly syntax oriented .Similarly C also.

Why to Learn Python
• There are large number of high-level
programming languages like C ,C++,Java
etc.But when compared to all these languages
Python has simplest Syntax, availability of
libraries and built-in modules.
• Python comes with an extensive collection of
third party resources that extend the
capabilities of the language.

contd..
• Python can be used for large variety of tasks
like Desktop applications ,Data base
applications,network programming ,game
programming and even mobile development
also.
• Python is also a cross platform language which
means that the code written for one operating
system like Windows ,will work equally well
with Linux or MacOS without any changes to
the python code.

INSTALLING PYTHON ON YOUR PC
• To learn this language first ,you have to
download the software which is the Python
Interpreter.
• Presently the version in use is Python 3.x
But you can also use Python 2.x ,like
2.7..etc .This depends on your system and your
interest.
To download the Python interpreter go to the
site http://www.python.org/downloads and
click on the suitable icon.

contd..
• The website appears as shown below.

contd..
• From the website you can download the suitable
version based on
• your OS (whether the OS is Windows ,MacOS or
Linux).
• And the Processor 32 bit or 64 bit.
• For ex: if you are using 64-bit Windows system ,you
are likely to download Windowsx86-64MSI Installer.
• So just click on the link and download and install the
Python Interpreter.

contd..
• This Python shell allows us to use Python in
interactive mode.
• The shell waits for a command from the user
,executes it and returns the result.

IDLE
• IDLE is a graphical user interface for doing
Python development, and is a standard and
free part of the Python system.
• It is usually referred to as an Integrated
Development Environment (IDE).
• One can write the Python code or script using
the IDLE which is like an editor.This comes
along with Python bundle.

contd..
The only thing to do is that we have to launch
the IDLE program .
• While the Python shell allows the user to work
in interactive mode, the Idle allows to write
the code and save it with .py extension. For
Ex: myProg_py.
• This file is known as Python script.

contd..
• Once the program is saved ,it can be executed
either by clicking the Run module or F5.
• If there are no errors you observe the results.

contd..
• The Screenshot for IDLE will be as shown
below. The >>> is the prompt, telling you Idle
is waiting for you to type something.

Your First Program
• To develop the Python program ,click on the
File and select NewFile.
• This will open a new text editor where you can
write your first program.
• # Prints the words Hello Python
print(“Hello Python”)
print(“Its nice learning Python”)
print(“Python is easy to learn”)

contd..
• In the above program ,the lines appear after
the # sign are treated as comments. They are
ignored and not executed by Python
interpreter. This will help only to improve the
readability of the program.
• After typing the code save this program with
an extension .py .For Ex: FirstProg.py
• Now press either F5 or click on Run module.

contd..
• After execution you find the output as
Hello Python
Its nice learning Python
Python is easy to learn.

Variables and Operators
• Variables are the names given to data that we
need to store and manipulate in our program.
• For example ,to store the age of the user ,we
can write a variable userAge and it is defined
as below.
userAge = 0 or userAge = 50
After we define userAge ,the program will
allocate some memory to store this data.

contd..
• Afterwards this variable can be accessed by
referring its name userAge.
• Every time we declare a variable ,some initial
value must be given to it.
• We can also define multiple variables at a
time.
For ex: userAge, userName=30,’Peter’
This is same as userAge=30
userName=‘Peter’

contd..
• Some precautions: The user name can contain
any letters (lower case or upper case) numbers
or underscores(-) but the first character
shouldn’t be a number
• For Ex: userName,user_Name,user_Name2
etc.. Are valid.
• But 2user_name ,2userName ..are not valid

contd..
• Variable names are case sensitive .username
and userNAME are not same.
• Normally two conventions are used in Python
to denote variables.
• Camel case notation or use underscores.
• Camel case is the practice of writing the
compound words with mixed casing.For
ex:”thisIsAvariableName”
• Another is to use underscores (-).

contd..
• This separates the words.For example:
“user_Name_variable”
• In the above example userAge=30,the ‘=‘ sign
is known as Assignment Sign
• It means ,we are assigning the value on the
right side of the = sign to the variable on the
left.
• So the statements x=y and y=x have different
meanings in programming.

contd..
• For example ,open your IDLE editor and type
the following program.
x=5
y=10
x=y
print(“x=“,x)
Print(‘y=“,y)
Now save this program with .py extension.
For example myprog1.py

contd..
• Run the program either by clicking .
Runmodule or F5
The output should be as below.
x=10
y=10
Here in the program you have assigned x=y in
the third line.So the value of x is changed to10
while the value of y do not change .

contd..
• Suppose you change the third line from x=y to
y=x, mathematically x=y and y=x may be
same .But it is not same in programming.
• After changing ,you again save your program
and Run the module as done above.What is the
output you expect?
• Surprisingly x=5 ,y=5 will be the output.
are you convinced with the output?

Basic Operators
• Python accepts all the basic operators like +
(addition),(subtraction),*(multiplication),/
(division),//(floor division),%(modulus) and
**(exponent).
• For example ,if x= 7,y=2
addition: x+y=9
subtraction:x-y=5
Multiplication:x*y=14
Division: x/y=3.5

contd
• Floor division: x // y=3(rounds off the answer
to the nearest whole number)
• Modulus: x%y= 1(Gives the remainder when 7
is divided by 2
• Exponent : x**y=49(7 to the power of 2)

Additional assignment Operators
• +=: x+= 2 is same as equal to x=x+2
• Similarly for subtraction:
x-=2 is same as x=x-2

Data Types
• Python accepts various data types like Integer,
Float and String.
• Integers are numbers with no decimal parts
like 2 ,-5 , 27 ,0 ,1375 etc..
• Float refers to a number that has decimal
parts.Ex: 1.2467 ; -0.7865 ; 125.876
• userHeight = 12.53
• userWeight = 65.872

contd..
• String: string refers to text.Strings are defined
within single quotes.
• For Ex: Variable Name = ‘initialvalue’
• VariableName=“initial value”
• userName=‘peter’
• userSpouseName=“Mary”
• userAge =“35”
here “35” is a string

contd..
• Multiple substrings can be combined by using
the concatenate sign(+)
• Ex:”Peter”+ “Lee” is equivalent to the string
“PeterLee”

Type Casting
• Type casting helps to convert from one data
type to another .i.e from integer to a string or
vice versa.
• There are three built in functions in Python
int() ; str() ; float()
• To change a float to an integer type
int(7.3256).The output is 7
• To change a string into integer int(“4”).The
output is 4

contd..
• Ex: int(“RAM”) ----- returns syntax error
• Int(“3.7654”) -------returns syntax error
• The str() function converts an integer or a float
to a string.
• Ex: str(82.1) The output is “82.1”
• Ex: str(757) The output is “757”
• Ex: str(Ram) The output is “Ram”

LIST
• A List in Python is a collection data which are
normally related.
• Instead of storing a data as separate variables
,it can be stored as a LIST.
• For ex: to store the age of 4 users , instead of
storing them as user1Age,user2Age,user3Age
and user4Age we can create a List of this data.
• To some extent, lists are similar to arrays in C.
Difference between them is that all the items
belonging to a list can be of different data
type.10/27/15 yayavaram@yahoo.com

contd..
• To declare a List:
ListName=[initial values]. Note ,always square
brackets[] are used to declare a List.
userAge =[20,42,23,25]
• A List can also be declared without assigning
any initial value to it.
• listName=[]. This is an empty list with no
items in it.

contd..
• To add items to the List ,we use append().
• The individual items of the List are accessed
by their indexes.The index always starts from
0.
• For ex; useAge=[20,25,35,45,65,55]
here userAge[0]= 20,userAge[2]=35.
• Similarly the index -1 denotes the last item
• userAge[-1]=55 and userAge[-2]=65

SLICE
• To access a set of items in a List we use Slice.
• The notation used is x:y.
• Whenever we use slice notation inPython, the
item at the start index is always included ,but
the item at the end is always excluded i.e y-1
is considered.
• For ex:userAge=[15,25,30,45,50.65.55]
the userAge[0:4] gives values from index 0 to
3 i.e 15,25,30,45

Add and Remove items
• To add items the append() function is useful.
• For ex :userAge.append(100) will add the
value 100 to the List at the end. Now the new
List is userAge=[15,25,30,45,50.65.55,100]
• To remove any value from the List we write
dellistName[index of item to be deleted]
• For ex: del userAge[2] will give a new List
userAge=[15,25,45,50,65,55,100]

Program
• # declare the list
myList[2,5,4,5,”Ram”]
• # to print the entire list
print(‘myList’)
• # to print the third item
print(myList[3])
The output is “Ram”
• # to print the last but one item
print(myList[-2])

Tuple
• Tuples are also a type of Lists.But the difference is
they can’t be modified.
• A tuple consists of a number of values separated by
commas. Unlike lists, however, tuples are enclosed
within parentheses().
• The main differences between lists and tuples are:
• Lists are enclosed in brackets [ ] and their elements
and size can be changed, while tuples are enclosed in
parentheses ( ( ) ) and cannot be updated.
• Tuples can be thought of as read-only lists.

contd..
• Declaring a Tuple
tupleName=( ‘Raju',786 , 2.23, ‘cdef',70.2 )
monthsOfYear(“Jan”,”Feb”,”March”,”April”)
• monthsOfYear[0]=“Jan”
• monthsOfYear[-1]= “April”

contd..
• print tuple: # Prints complete list print
• tuple[0] : # Prints first element of the list
• print tuple[1:3]: # Prints elements starting
from 2nd till 3rd print
• tuple[2:] : # Prints elements starting
from 3rd element
• print tinytuple * 2 : # Prints list two times

Dictionary
• Dictionary is a collection of related data
PAIRS.
• The general Syntax is
dictionaryName={dictionarykey:data}
The same dictionary key should not be used
twice
• For Ex: to store the username and age of 4
users we can write
• myDictionary={“peter”:25,”Ram”:15,”Carl”:5
0,”Kundan”: 20}

contd…
• Dictionary can also be declared using “dict()”
method.
• userNameAndAge=dict(peter=25,Ram=20,Carl
=30, Krish=“not available”)
• Here round brackets parenthesis) are used
instead of curly brackets.
• dictionaryName={ } denotes an empty
dictionary with no items init

Add items to Dictionary
• To add items to a dictionary the syntax is
dictionaryName[dictionarykey]=data.
To add “Sam”=40 to the dictionary ,
userNameAndAge[“Sam”]=40
• Now the dictionary will become
userNameAndAge=dict(peter=25,Ram=20,Car
l=30, Krish=“not available”,Sam=40)

contd..
• To delete or remove items from a dictionary
the syntax is
del dictionaryName[dictionarykey]
• Ex: To remove “Ram”:20 the syntax is
del usernameAndAge[‘’Ram”]
• Now the dictionary is
userNameAndAge={“peter”:25,”Carl”:30,
“Krish”:“not available”,”Sam”:40}

Declare Dictionary –Alternative way
• Dictionary can also be declared by alternative
method
• myDict={“one”:1.45,5.8:”TwopointFive”,3:”+”,4.5:2}
print(mydict)
The output is
{2.5:’TwopointFive’,3:’+’:4.5,4.5:2}

Condition Statements
• To change the flow of control ,normally we
use some conditional statements in a
program .The flow of the program is based on
whether the condition is met or not .
• The most common condition statement is
Comparison statement which is denoted by
(= =) sign.
• For ex: when you are writing a==b ,means you
are asking the program to check whether the
value of a is equals to that of b or not.

contd..
• The other comparison statements are
“not equals” (!=)
“smaller than”(<)
“greater than”(>)
“greater than or equal to (>=)
Examples: 8!= 4 ----Not equals
6>=2 ----Greater than or equal to
7>2 ---Greater than
4<9 – Less than or equal to

Logical Operators
• There are three logical operators in Python
• And , or ,not
• The and operator returns True if all the
conditions are met ,else it will return False.
• The or operator returns true if atleast one
condition is met.Else it will return false.
• The not operator returns True if the condition
after the not keyword is false.Else it will return
False.

If statement
• It is one of the commonly used control flow
statements.
• It allows the program to evaluate if certain condition
is met. And to perform the appropriate action based
on the result of the evaluation
• For example , if condition 1 is met
do task A
elif condition 2 is met
do task B
elif stands for else if and we can have as many elif
statements as we like

Program
• Open your Idle and type the program
• userInput=input(“Enter 1 or 2”)
if userInput == “1”:
print(“Hello Python”)
print(“how are you”)
elif userInput == “2”:
print(“python great”)
print(“I Love Python”)
else:
print(“ you entered invalid number”)

For Loop
• The For Loop executes a block of code
repeatedly until the condition in the for
statement is no longer valid.
• In Python ,an iterable refers to anything that
can be looped over ,such as a string ,list or
Tuple.
• The syntax for looping through an iterable is :
for an iterable
print(a)

contd..
• Ex: pets = [‘cats’,’dogs’,’rabbits’,’hamsters’]
for myPets in pets:
print(myPets)
In this program,first we declared the list pets
and give the members ‘cats’,’dogs’,’rabbits’ and
‘hamsters’.Next the statement for myPets: loops
through the pets list and assigns each member in
the list to the variable myPets.

contd..
• If we run the program ,the output will be
cats
dogs
rabbits
hamsters
• It is also possible to display the index of the members
in the List.For this the function enumerate() is used.
• For index,myPets in enumerate(pets):
• print(index,myPets)

contd..
• The output is:
0 cats
1 dogs
2 rabbits
3 hamsters

Looping through a sequence of Numbers
• To loop through a sequence of numbers ,the
built-in range() function is used.
• The range() function generates a list of
numbers and has the syntax :
range(start,end,step).
• If start is not mentioned ,the numbers
generated will start from zero.
• Similarly if step is not given , alist of
consecutive numbers will be generated (i.e
step=1)

contd..
• For ex:
• Range(4) will generate the List[0,1,2,3,]
• Range(3,9) will generate a List[3,4,5,6,7,8]
• Range(4,10,2) will generate List[4,6,8]

Example
• To check the working of range function with for loop
type the following script on Idle.
• for i in range(5);
print(i)
The output will be:
0
1
2
3
4

While Loop
• A while loop repeatedly executes instructions
inside the loop while a certain condition
remains true.
• The syntax of a while loop is
while the condition is true
do the Task A
For Ex:
Counter= 5
While counter > 0:

contd..
• print(‘counter=‘,counter)
counter = counter-1
When you run the program the output will be
counter=5
counter=4
counter=3
counter=2
counter=1

Break
• This will help to exit from the loop when a
certain condition is met.Here break is a
keyword in Python.
• Ex: j=0
for I in the range(5):
j=j+2
print(‘i=‘,i, ‘j=‘,j)
if j==6:
break

contd..
• The output of the above program will be:
i=0,j=2
i=1,j=4
i=2,j=6
without the break keyword ,the program
should loop from i=0 to i=4 because the
function range(5) is used.
Due to the keyword break ,the program ends
early at i=2.Because when i=2 ,j reaches the
value 6 .

Continue
• Continue is another important keyword for
Loops.
• When the keyword continue is used ,the rest of
the loop after the keyword is skipped for that
iteration.
• Ex: j=0
for i in range (5):
j=j+2
print(‘ni=‘,I,j=‘,j)
if j==6:
continue

contd..
• Print(‘i will be skipped over if j=6’)
The output of the program is as below:
i=0,j=2
I will be skipped over if j=6
i=1,j=4
i=2,j=6
i=3,j=8
i= 4,j=10
When j=6,the line after the continue keyword is not
printed.

Try,Except
• This control statement controls how the
program proceeds when an error occurs The
syntax is as below.
• Try:
do a Task
except
do something else when an error occurs

contd..
• For Ex:
try:
answer = 50/0
print(answer)
except:
print(‘An error occurred’)
when we run the program,the message “An error
occurred” will be displayed because answer=50/0 in
the try block canot divide a num,ber by 0.So,the
remaining of the try block is ignored and the
statement in the except block is executed.

Functions-Modules
• Functions are pre-written codes that perform a
dedicated task.
• For ex: the function sum() add the numbers.
• Some function require us to pass data in for
them to perform their task.These data are
known as parameters and we pass them to the
function by enclosing their values in
parenthesis() separated by commas.
• The print() function is used to display the text
on the screen.

contd..
• replace() is another function used for
manipulating the text strings.
• For Ex:
“helloworld”.replace(“world”,”Universe”)
here “world” and “universe” are the
parameters.The string before the Dot is the
string that will be affected.So,”hello world”
will be changed to “hello Universe”

Your own Functions
• Python has has flexibility to define your own
functions and can be used them in the
program.
• The syntax is:
def functionName(parameters):
code for what the function should do
return[expression]
The two keywords here are “def” and “return”

contd..
• def tells the program that the indented code
from the next line onwards is part of the
function and return is the keyword that is used
to return an answer from the function.
• Once the function executes a return
statement ,it will exit.
• If your function need not return any value you
can write return or return None.

contd..
• Ex:def checkIfPrime(numberToCheck):
for x in range(2,numberToCheck):
if(numberToCheck%x==0);
return False
return True
The above function will check whether the
given number is a prime number or not.If the
number is not a prime number it will return
False otherwise return True.

Variable Scope
• An important concept to understand while
defining a function is the concept of variable
scope.
• Variables defined inside a function are treated
differently from variables defined outside.
• Any variable defined inside a function is only
accessible within the function and such
functions are known as local variables.
• Any variable declared outside a function is
known as global variable and it is accessible
anywhere in the program.

Importing Modules
• Python provides a large number of built-in
functions and these are saved in files known
as modules.
• To use the modules in our program ,first we
have to import them into our programs.
and this is done by using the keyword import.
Ex: To import the module random we write
import random

contd..
• To use the randrange() function in the random
module we use
random.randrange(1,10).
This can also be written as
r.randrange(1,10).
• If we want to import more than one functions
we separate them with a comma
• To import the randrange() and randint()
functions we write from random import
randrange,randint.

Creating own Module
• Creating a module is simple and it can be done
by saving the file with a .py extension and put
it in the same folder as the python file that you
are going to import it from.
• Suppose you want to use the
checkIfPrime()function defined earlier in
another Python script.First save the code
above as prime.ph on your desktop.

contd..
• The prime.py should have the following code.
def checkIfPrime(numberToCheck):
for x in range(2,numberToCheck):
if(numberToCheck%x==0):
return False
return True
Next create another python file and name it
useCheckIfPrime.py
This should have the following code

contd..
• Import prime
answer = prime.checkIfPrime(17)
print(answer)
• Now run useCheckIfPrime.py.
• You get the output as True
• Suppose you want to store prime.py and
useCheckIfPrime.py in different folders, you
have to give the python’s system path.

contd..
• Create a folder called ‘MyPythonModules’ in
the C drive to store prime.py.
• Add the following code to the top of your
useCheckIfPrime.py file.
(i.e before the import prime line)
• Import sys
if’C:MyPythonModules’not in sys.path:
sys.path.append(‘C:MyPythonModules’)
here sys.path refers to python’s system path.

contd..
• The code above appends the
folder’C:MyPythonModules’ to your system
path.
• Now you can put prime.py in
C:MyPythonModules and checkIfPrime.py in
any other folder of your choice.

Handling Files
• The basic type of a file is a text file.It consists
of multiple lines of text.To create a text file
type some lines of text like
“I am learning Python programming.
Python is an interesting language” .
save this text file as myfile.txt on your desktop.
Next open Idle and type the code below.

contd..
• f= open(‘myfile.txt’,’r’)
firstline=f.readline()
secondline=f.readline()
print(firstline)
print(secondline)
f.close()
Save this code as fileOperation.py on your
desktop.
• To open a file we can use open() function.

contd..
• The open function require two parameters:The
first one is the path to the file and the second
parameter is the mode.
• The commonly used modes are
• ‘r’mode: For reading only
• ‘w’mode: For writing only.
• ‘a’ mode: For appending .If the specified file
does not exist ,it will be created and if the file
exist ,any data written to the file is
automatically added at the end of the file.

contd..
• ‘r+’mode:For both reading and writing.
• After opening the file
firstline=f.readline() reads the firstline in the
file and assigns it to the variable firstline.
Each time the readline() function is called ,it
reads a new line from the file.
When you run the program the output will be
I am learning Python programming.
Python is an interesting language.

contd..
• In the output ,you can observe that a line break
is inserted after each line.
• Because the function readline() adds the ‘n’
characters to the end of each line.
• If you don’t want the extra line between each
line of text ,you can wrte
print(firstline,end=‘’).This will remove the ‘n’
characters
• f.close() function closes the file.One should
always close the file after reading is done.It will
freeup any system resources.

For Loop to Read Text Files
• For loop can also be used to read a text file.
• For ex: f = open(‘myfile.txt’,’r’)
for line in f:
print(line,end=‘’)
f.close()
The for loop helps to read the text file line by
line.

Opening and reading Text files by Buffer size
• To avoid the too much usage of memory we
can use the read() function instead of
readline() function.
• Ex: msg=inputfile.read(10)
The program reads only the next 19 bytes and
keeps doing it until the entire file is read.

Deleting and re-naming the Files
• remove() and rename() are the two important
functions available as modules which have to
be imported before they are used in a program.
• The remove() function deletes a file.the syntax
is remove(filename)
• Ex: remove(‘myfile.txt’)
• To rename a file the function rename() is used.
• The syntax is rename(old name,new name)
• rename(‘oldfile.txt,’newfile.txt’) will rename
oldfile.txt to newfile.txt

Simple Examples-1
• Python code to find the area of a triangle:
• First open Idle and type the code
• a = float(input(‘Enter first side:’))
b= float(input(‘Enter first side:’))
c= float(input(‘Enter first side:’))
s=(a+b+c)/2
area=(s*(s-a)*(s-b)*(s-c))**0.5
print(‘The area of the triangle is %0.2f’%area)

Simple Examples-2
• Python code to find Square root
num=float(input(‘Enter a number:’))
num_sqrt=num**0.5
print(‘The square root of %0.3f is % 0.3f%
(num,num_sqrt))
This program is saved with .py extension and
executed .the out will ask to enter a number
and on entering a number it gives the squre
root of the number.

Simple Examples-3
• Python code for factorial of a number
• Num= int(input(‘Enter a number:’))
factorial = 1
if num < 0:
print(‘sorry ,factorial does not exist for
negative numbers’)
elif num == 0;
print(“The factorial of 0 is 1”)

contd..
• else for i in range(1,num+1):
factorial = factorial*i
print(“The factorial of “,num,”is”,factorial)
• Save the program with .py extension and run
module or press F5.
• The program will ask to enter a number
• After entering the number you get the output

Simple Examples-4
• Print all the Prime numbers in an Interval.
• Lower=int(input(‘Enter lower range:’))
upper=int(input(‘Enter upper range))
for num in range(lower,upper+1):
if num>1:
for i in range(2,num):
if(num%i)==0:
break
else:
print(num)

Simple Examples-5
• Code to swap two numbers
• x= input(‘Enter value of x:’)
y=input(‘Enter value of y:’)
temp = x
x=y
y= temp
print(‘The value of x after swapping:
{ }’format(x))
print(‘The value of y after swapping:
{ }’format(y)).
Run the code and observe the output

Simple Examples-6
• Solve a quadratic equation ax2+bx+c=0
• Import cmath # add complex math module
a= float(input(‘Enter a:’))
b= float(input(‘Enter b:’))
c= float(input(‘Enter c:’))
d= (b**2)-(4*a*c) //calculate discriminant
sol1=(-b-cmath.sqrt(d))/(2*a)
sol2=(-b+cmath.sqrt(d))/(2*a)
print(‘The solutions are {0} and {1}.format(sol1,sol2))

Simple Examples-7
• To find ASCII value of a given characters
• # Take character from user
c = input("Enter a character: ")
print("The ASCII value of '" + c + "' is",ord(c))
Note: here ord(c) is a builtin function available
in Python to find the ASCII value of a
character

ACKNOWLEDGEMENT
• I don’t claim any ownership for this lecture as
it is the collection from many books &web
resources
• I thank the authors of the books and web
resources from where I collected the
information and code.
• The sole objective behind this effort is only to
encourage and inspire if possible some young
minds towards this wonderful programming
language -Python

References
• Learn Python in One Day and Learn It Well -
Jamie Chan.
• Sams Teach Yourself Python Programming for
Raspberry.
• Programming Python, 5th
Edition,O'Reilly
Media.
• Python Cook Book O'Reilly Media.

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