Marks=[10,20,30,40,50] OUTPUT

i=0 Enter Radius: 5

sum=0 The Area = 78.5
while i<4: The Circumference = 31.400000000000002
sum+=Marks[i]
i+=1 import matplotlib.pyplot as plt
print(sum) a=[1,2,3]
OUTPUT b=[5,7,4]
100 x=[1,2,3]
y=[10,14,12]
class Sample: plt.plot(a,b,label='Label 1')
num=0 plt.plot(x,y,label='Label 2')
def __init__(self, var): plt.xlabel('X-Axis')
Sample.num+=1 plt.ylabel('Y-Axis')
self.var=var plt.legend()
print("The object value is = ", var) plt.show()
print("The count of object created = ", OUTPUT
Sample.num)
S1=Sample(15)
S2=Sample(35)
S3=Sample(45)

OUTPUT
The object value is = 15
The count of object created = 1 import matplotlib.pyplot as plt
The object value is = 35 plt.plot([1,2,3,4], [1,4,9,16])
The count of object created = 2 plt.show()
The object value is = 45 OUTPUT
The count of object created = 3

Mydict={chr(x):x for x in range(97,102)}

print(Mydict)
OUTPUT
{'a': 97, 'b': 98, 'c': 99, 'd': 100, 'e': 101}

A={x*3 for x in range(1,6)}

B={y**2 for y in range(1,10,2)} str1="THOLKAPPIYAM"
print("A=",A) print(str1[4:])
print("B=",B) print(str1[4::2])
print("A|B=",A|B) print(str1[::3])
print("A-B=",A-B) print(str1[::-3])
print("A&B=",A&B) OUTPUT
print("A^B=",A^B) KAPPIYAM KPIA
OUTPUT TLPY MIAO
A= {3, 6, 9, 12, 15}
B= {1, 9, 81, 49, 25} str1 = "welcome"
A|B= {1, 3, 6, 9, 12, 15, 81, 49, 25} str2 = "to school"
A-B= {3, 12, 6, 15} str3=str1[:2]+str2[len(str2)-2:]
A&B= {9} print(str3)
A^B= {1, 3, 6, 12, 15, 81, 25, 49} OUTPUT
weol
class Circle:
pi=3.14 Num = []
def __init__(self,radius): for x in range(1,11):
self.radius=radius Num.append(x)
def area(self): print("The list of numbers from 1 to 10 = ", Num)
return Circle.pi*(self.radius**2) for index, i in enumerate(Num):
def circumference(self): if(i%2==0):
return 2*Circle.pi*self.radius del Num[index]
r=int(input("Enter Radius: ")) print("The list after deleting even numbers = ", Num)
C=Circle(r) OUTPUT
print("The Area =",C.area()) The list of numbers from 1 to 10 = [1, 2, 3, 4, 5, 6, 7,
print("The Circumference =", C.circumference()) 8, 9, 10]
The list after deleting even numbers = [1, 3, 5, 7, 9]
# String within triple quotes to display a string mytuple=tuple([x**2 for x in range(2,11,2)])
with single quote print(mytuple)
>>> print ('''They said, "What's there?"''') print(mytuple[2:3])
They said, "What's there?" print(mytuple[3:])
print(mytuple[:])
# String within single quotes to display a string
OUTPUT
with single quote using escape sequence
(4, 16, 36, 64, 100)
>>> print ('They said, "What\'s there?"')
They said, "What's there?" (36,)
(64, 100)
# String within double quotes to display a string (4, 16, 36, 64, 100)
with single quote using escape sequence
>>> print ("They said, \"What's there?\"") Write a program to swap two values using tuple
He said, "What's there?" assignment
a = int(input("Enter value of A: "))
alpha=list(range(65,70)) b = int(input("Enter value of B: "))
for x in alpha: print("Value of A = ", a, "\n Value of B = ", b)
print(chr(x),end='\t') (a, b) = (b, a)
OUTPUT print("Value of A = ", a, "\n Value of B = ", b)
A B C D E OUTPUT
Enter value of A: 45
i=65 Enter value of B: 66
while(i<=70): Value of A = 45
for j in range(65,i): Value of B = 66
print(chr(j),end="\t") Value of A = 66
print(end='\n') Value of B = 45
i=i+1
or Tup1 = (12, 78, 91, "Tamil", "Telugu", 3.14, 69.48)
a=['A','B','C','D','E'] print(Tup1)
for i in range(0,6): print(Tup1[2:5])
for j in range(0,i): print(Tup1[:5])
print(a[j],end=" ") print(Tup1[4:])
else: print(Tup1[:])
print() OUTPUT
OUTPUT (12, 78, 91, 'Tamil', 'Telugu', 3.14, 69.48)
A (91, 'Tamil', 'Telugu')
A B (12, 78, 91, 'Tamil', 'Telugu')
A B C ('Telugu', 3.14, 69.48)
A B C D (12, 78, 91, 'Tamil', 'Telugu', 3.14, 69.48)
A B C D E
Write a program to check if a number is Positive,
a, b = 30, 20 Negative or zero.
min = a if a < b else b num = float(input("Enter a number: "))
print ("The Minimum of A and B is ",min) if num > 0:
OUTPUT print("Positive number")
The Minimum of A and B is 20 elif num == 0:
print("Zero")
a, b = 30, 20 else:
max = a if a > b else b print("Negative number")
print ("The Maximum of A and B is ",max)
OUTPUT i=1
The Maximum of A and B is 30 while True:
if i%3 ==0:
squares = [ ] break
for x in range(1,11): print(i,end='')
s = x ** 2 i +=1
squares.append(s) OUTPUT
print (squares) 12
OUTPUT
[1, 4, 9, 16, 25, 36, 49, 64, 81, 100] str1="TamilNadu"
print(str1[::-1])
squares = [ x ** 2 for x in range(1,11) ] OUTPUT
print (squares) udaNlimaT
OUTPUT
[1, 4, 9, 16, 25, 36, 49, 64, 81, 100] list = [1, 2, 4, 5]
list.insert (2, 3)
print (list)
OUTPUT str1="COMPUTER"
[1, 2, 3, 4, 5] index=7
for i in str1:
Write a program to print the following pattern print (str1[:index+1])
str1=' * ' index-=1
i=1 OUTPUT
while i<=5: COMPUTER
print(str1*i) COMPUTE
i+=1 COMPUT
OUTPUT COMPU
* COMP
* * COM
* * * CO
* * * * C
* * * * *
Write a program to display Fibonacci series 0 1 1 2 3
for i in range (5, 0, -1): 4 5…… (upto n terms) [pg.86]
for j in range (1, i + 1): a, b, c = 0, 1, 0
n = int(input("Enter number of terms"))
print (' * ', end = '')
print(a, end= ' ')
print (end = '\n') print(b, end= ' ')
i+=1 for i in range (3, n+1):
or c = a+b
str1=' * ' print (c, end = ' ')
i=5 a=b
while i>=1: b=c
print(str1*i)
Write a program to display sum of natural numbers,
i-=1 upto n. [pg.86]
OUTPUT s=0
* * * * * n = int (input("Enter number of terms"))
* * * * for i in range (1, n + 1):
* * * s=s+i
* * print ("sum = ", s)
* Write a program to check if the given number is a
palindrome or not. [pg.86]
Write a Python program to display the given n = int (input("Enter the number"))
pattern s, d, x = 0, 0, n
str1="COMPUTER" while (n!= 0):
index=0 d = n%10
s = (s* 10)+d
for i in str1:
n = n//10
print (str1[:index+1]) if s == x:
index+=1 print ("The given number is palindrome")
OUTPUT else:
C print ("The given number is not palindrome")
CO
COM
COMP str1="COMPUTER"
COMPU print(str1*3)
COMPUT OUTPUT
COMPUTE COMPUTERCOMPUTERCOMPUTER
COMPUTER
T=1
str="COMPUTER" while T:
index=9 print(True)
for i in str: break
print(str[:index-1]) OUTPUT
index-=1 True
OUTPUT
COMPUTER list=[2**X for X in range(5)]
COMPUTE print(list)
COMPUT OUTPUT
COMPU [1, 2, 4, 8, 16]
COMP
COM
CO
C
list=[2**X for X in range(1,5)] setA={3,6,9}
print(list) setB={1,3,9}
OUTPUT print(setA|setB)
[2, 4, 8, 16] print(setA&setB)
print(setA-setB)
List=[10,20,30,40,50] print(setA^setB)
List[2]=35 OUTPUT
print(List) {1, 3, 6, 9}
OUTPUT {9, 3}
[10, 20, 35, 40, 50] {6}
{1, 6}
List=[17,23,41,10]
List.append(32) set_A={'a',2,4,'d'}
print(List) set_B={'a','b','c','d'}
OUTPUT print(set_A&set_B)
[17, 23, 41, 10, 32] OUTPUT
{'a', 'd'}
list1=[2,4,6,8,10]
print(list1[-2]) num1=int (input("Number 1: "))
OUTPUT num2=int (input("Number 2: "))
8 print ("The sum of { } and { } is { }".format(num1,
num2,(num1+num2)))
list=[2**X for X in range(1,10,2)] OUTPUT
print(list) Number 1: 34
Number 2: 54
OUTPUT
The sum of 34 and 54 is 88
[2, 8, 32, 128, 512]
def fact(n):
for i in range (5,15,3):
if n==0:
print(i)
return 1
OUTPUT
else:
[5,8,11,14]
return n*fact(n-1)
print(fact(5))
MyTup4 = (10)
OUTPUT
print(type(MyTup4))
120
OUTPUT
<class 'int'>
class Findsum:
MyTup5 = (10,) def __init__(self,num1,num2):
print(type(MyTup5)) self.__n1=num1
OUTPUT self.__n2 = num2
<class 'tuple'> def sum(self):
return self.__n1+self.__n2
divBy4=[ ] n1=int(input("Enter the first number:"))
for i in range(21): n2=int(input("Enter the second number:"))
if (i%4==0): obj1=Findsum(n1,n2)
divBy4.append(i) print("The sum of ", n1,"and",n2,"is",obj1.sum())
print(divBy4) OUTPUT
OUTPUT Enter the first number:200
[0, 4, 8, 12, 16, 20] Enter the second number:300
The sum of 200 and 300 is 500
Dict = { x : 2 * x for x in range(1,10)}
print(Dict) class Sample:
def __init__(self, num):
OUTPUT
print("Constructor of class Sample...")
{1: 2, 2: 4, 3: 6, 4: 8, 5: 10, 6: 12, 7: 14, 8: 16, 9: 18} self.num=num
print("The value is :", num)
S=[x**2 for x in range(5)] S=Sample(10)
print(S) OUTPUT
OUTPUT The value is :10
[0, 1, 4, 9, 16]
list1=[10,11,12,[9,13,15]]
list=[y**2 for y in range(5)] x=len(list1)
print(list) print(x)
OUTPUT OUTPUT
[0, 1, 4, 9, 16] 4
List1=[2,4,6,[1,3,5],1,2,5,6] Write a program to display sum of natural numbers,
x=len(List1) upto n.
print(x) s=0
OUTPUT n = int (input("Enter number of terms"))
8 for i in range (1, n + 1):
s=s+i
List1=[2,4,6,[1,3,5]] print ("sum = ", s)
x=len(List1) OUTPUT
print(x) Enter number of terms100
OUTPUT sum = 5050
4 or
num=int(input("Enter the number"))
a=int(input("Enter the first number:")) if num < 0:
b=int(input("Enter the second number:")) print("Enter a positive number")
if(a>b): else:
min1=a sum = 0
else: while(num > 0):
min1=b sum += num
while(1): num -= 1
if(min1%a==0 and min1%b==0): print("The sum is", sum)
print("LCM is:",min1)
break OUTPUT
min1=min1+1 Enter number of terms100
OUTPUT sum = 5050
LCM is: 4
Program to display the number of vowels and
A="Corporation" consonants in the given string
print(len(A)) str1=input ("Enter a string: ")
str2="aAeEiIoOuU"
OUTPUT
v,c=0,0
11 for i in str1:
if i in str2:
city="chennai" v+=1
print(city.capitalize()) else:
OUTPUT c+=1
Chennai print ("The given string contains {} vowels and {}
consonants".format(v,c))
Enter a string: hello im sunesh
Write a Python code to check whether a given The given string contains 5 vowels and 10
year is leap year or not. consonants
y=int(input("Enter a year : ")) ch = input("Please Enter Your Own Character : ")
n=y%4 if(ch == 'a' or ch == 'e' or ch == 'i' or ch == 'o' or ch
if (n==0): == 'u' or ch == 'A'or ch == 'E' or ch == 'I' or ch =='O'
print("The year {} is a Leap Year".format(y)) or ch == 'U'):
else: print("The Given Character ", ch, "is a Vowel")
print("The year {} is not a Leap Year".format(y)) else:
print("The Given Character ", ch, "is a
OUTPUT Consonant")
Enter a year : 2024
The year 2024 is a Leap Year OUTPUT
Enter a year : 1999 Please Enter Your Own Character : r
The year 1999 is not a Leap Year The Given Character r is a Consonant
Please Enter Your Own Character : e
The Given Character e is a Vowel
str1 = "Welcome to learn Python"
print(str1[10:16])
print(str1[::-2]) Create an interactive program to accept the details
print(str1[0:7]) from user and store it in a csv file using Python for
print(str1[12:]) the following table.
print(str1[::3]) Database name;- DB1
Table name : Customer
print(str1*2)

OUTPUT
learn
nhy re teolW
Welcome
earn Python
Wceoenyo
Welcome to learn PythonWelcome to learn Python
import sqlite3 VALUES (1008,"monitor",15000);"""
# connecting to the database cursor.execute(sql_command)
connection = sqlite3.connect ("DB1.db") sql_command="""INSERT INTO
# cursor product(Icode,ItemName,Rate)
cursor = connection.cursor() VALUES (1010,"mouse",700);"""
cursor.execute ("""DROP TABLE customer;""")
sql_command = """
CREATE table customer( connection.commit()
Cust_Id INT PRIMARY KEY NOT NULL, connection.close()
Cust_Name TEXT NOT NULL, print("SUCCESSFULLY CREATED")
Address CHAR(50),
Phone_no INT (50), import sqlite3
City TEXT NOT NULL);""" connection = sqlite3.connect ("company.db")
cursor =connection.cursor()
cursor.execute(sql_command) crsr = connection.cursor()
sql_command="""INSERT INTO customer crsr.execute("SELECT * FROM product")
(Cust_Id,Cust_Name,Address,Phone_no,City) ans= crsr.fetchmany(5)
VALUES (111, 'Sandeep', '14/1 Pritam Pura', print(*ans,sep="\n")
41206819,'Delhi' );"""

cursor.execute(sql_command) Write a Python script to create a table called ITEM

sql_command="""INSERT INTO customer with following specification.
(Cust_Id,Cust_Name,Address,Phone_no,City) Add one record to the table.
VALUES (222, 'Anurag Basu', '15A, Park Road', Name of the database :- ABC
61281921,'Bangalore' );""" Name of the table :- Item
Column name and specification :-
cursor.execute(sql_command) Icode:-integer and act as primary key
sql_command="""INSERT INTO customer Item Name:-Character with length 25
(Cust_Id,Cust_Name,Address,Phone_no,City) Rate:-Integer
VALUES (3333, 'Hrithik', '17/2 Vasant Nagar',
Record to be added:-1008, Monitor,15000
26121949,'Mumbai' );"""

connection.commit() import sqlite3

connection.close() # connecting to the database
print("SUCCESSFULLY CREATED") connection = sqlite3.connect ("ABC.db")
# cursor
Write the Python script to display all the records cursor = connection.cursor()
of the following table using fetchmany() #cursor.execute ("""DROP TABLE Item;""")
Itemcode ItemName Rate sql_command = """
1003 Scanner 10500 CREATE table Item(
1004 speaker 3000 Icode INT PRIMARY KEY NOT NULL,
1005 Printer 8000 ItemName varchar(25) NOT NULL,
1008 monitor 15000 Rate int (50));"""
1010 Mouse 700
import sqlite3 connection.commit()
# connecting to the database connection.close()
connection = sqlite3.connect ("company.db") print("SUCCESSFULLY CREATED")
# cursor
cursor = connection.cursor() Create a plot. Set the title, the x and y labels for both
#cursor.execute ("""DROP TABLE product;""") axes.
sql_command = """ import matplotlib.pyplot as plt
CREATE table product( x = [1,2,3]
Icode INT PRIMARY KEY NOT NULL, y = [5,7,4]
ItemName TEXT NOT NULL, plt.plot(x, y)
Rate INT (50));""" plt.xlabel('X-Axis')
plt.ylabel('Y-Axis')
cursor.execute(sql_command) plt.title('LINE GRAPH')
sql_command="""INSERT INTO plt.show()
product(Icode,ItemName,Rate)
VALUES (1003,"scanner",10500);"""

cursor.execute(sql_command)
sql_command="""INSERT INTO
product(Icode,ItemName,Rate)
VALUES (1004,"speaker",3000);"""

cursor.execute(sql_command)
sql_command="""INSERT INTO
product(Icode,ItemName,Rate) Plot a pie chart for your marks in the recent
VALUES (1005,"printer",8000);""" examination.
import matplotlib.pyplot as plt
cursor.execute(sql_command) sizes = [89, 80, 90, 100, 75]
sql_command="""INSERT INTO labels = ["Tamil", "English", "Maths", "Science",
product(Icode,ItemName,Rate) "Social"]
 plt.pie (sizes, labels = labels, autopct = "%.2f")
plt.axes().set_aspect ("equal")
plt.show()

Plot a bar chart for the number of computer science

periods in a week.
import matplotlib.pyplot as plt
labels=["SUN","MON","TUE","WED","THU","FRI"
,"SAT"]
use=[3,2,1,3,2,2,2]
y_positions=range(len(labels))
Plot a line chart on the academic performance of plt.bar(y_positions,use)
Class 12 students in Computer Science for the past 10 plt.xticks(y_positions,labels)
years. plt.xlabel("PERIODS")
import matplotlib.pyplot as plt plt.ylabel("years")
years=[2009,2010,2011,2012,2013,2014,2015,2016,2 plt.title("COMPUTER SCIENCE
017,2018] PERFORMANCE")
cs=[65,70,75,76,78,80,85,89,92,96] plt.show()
plt.plot(years,cs)
plt.title("COMPUTER SCIENCE
PERFORMANCE")
plt.xlabel("cs")
plt.ylabel("years")
plt.show()
 S.J.SUNESH,
COMPUTER SCIENCE INSTRUCTOR,
EXCEL HIGHER SECONDARY SCHOOL,
THIRUVATTAR, KANYAKUMARI DIST.
:sunesh.stanly@gmail.com

:+91 8903759872,
+91 9080799989

: +91 8903759872
For downloading ppt materials https://www.nammakalvi.in/12th-computer-science-study-materials-and-
guides-download.html