while 1:
print("1. Fibonacci Series")
print("2. Factorial")
print("3. Exit")
opt=int(input("Enter your choice:"))
if opt==1:
n=int(input("Enter no. of terms:"))
no1=0
no2=1
print("The first",n,"terms of fibonacci series:")
print(no1)
print(no2)
for i in range(n-2):
no3=no1+no2
print(no3)
no1=no2
no2=no3
elif opt==2:
f=1
no=int(input("Enter no:"))
for i in range(1,no+1):
f=f*i
print("Factorial is:",f)
elif opt==3:
break
else:
print("Invalid Choice!")2. Write a menu driven program to check whether a string is palindrome or not and check whether one number is prime or not.
while 1:
print("1. Palindrome")
print("2. Prime Number")
print("3. Exit")
opt=int(input("Enter your choice:"))
if opt==1:
name=input("Enter text:")
rev=name[::-1]
if name==rev:
print(name,"is palindrome")
else:
print(name,"is not palindrome")
elif opt==2:
no=int(input("Enter number:"))
for i in range(2,no):
if no%i==0:
print("The given no is not a prime number")
break
else:
print("The given number is a prime number")
elif opt==3:
break
else:
print("Invalid Choice!")3. Write a program to accept a set of integers and find whether those numbers are palindromes or not.
while True:
no=int(input("Enter a number:"))
temp=no
rev=0
while no>0:
rem=no%10
rev=(rev*10)+rem
no=no//10
if temp==rev:
print(temp,"is palindrome")
else:
print(temp,"is not palindrome")
ch=input("Do you want to continue(y/n):")
if ch in 'nN':
breakdef bsearch(ar,n,item):
beg=0
last=len(ar)-1
while(beg<=last):
mid=(beg+last)//2
if(item==ar[mid]):
return mid
elif (item>ar[mid]):
beg=mid+1
else:
last=mid-1
else:
return -1
n=int(input('Enter size of list:'))
print('Enter numbers in sorted order:\n')
ar=[0]*n
for i in range(n):
ar[i]=int(input('Element '+str(i)+':'))
item=int(input('Enter the number to be searched:'))
index=bsearch(ar,n,item)
if index>-1:
print('\nElement found at index:',index,', position:',(index+1))
else:
print('\nSorry, The given number is not found')def bubblesort(a, number):
for i in range(number -1):
for j in range(number - i - 1):
if(a[j] > a[j + 1]):
temp = a[j] # a[j],a[j+1]=a[j+1],a[j]
a[j] = a[j + 1]
a[j + 1] = temp
a = []
number = int(input("Enter the total number of Elements : "))
for i in range(number):
value = int(input("Enter the %d Element of List : " %i))
a.append(value)
bubblesort(a, number)
print("The Sorted List in Ascending Order : ", a)def lsearch(ar,n,item):
for i in range(0,n):
if ar[i]==item:
return i
break
return -1
n=int(input('Enter size of list:'))
print('Enter numbers in sorted order:\n')
ar=[0]*n
for i in range(n):
ar[i]=int(input('Element '+str(i)+':'))
item=int(input('Enter number to search:'))
index=lsearch(ar,n,item)
if index!=-1:
print('\nElement found at index :',index,',position: ',(index+1))
else:
print('\Sorry, the given number is not found')7. Write a program by using a function to find the sum of the following series: x – x2 /2! + x3/3! – …….. – x6/6!
def sumseries(x):
fact = 1
sum = 0
for i in range(1,7):
fact = fact * i
if i % 2 == 0 :
sum = sum - (x**i)/fact
else :
sum = sum + (x**i)/fact
print("Sum of the given series: ",sum)
x = int(input("Enter a term: "))
sumseries(x)(i) A function that takes a number as argument and calculates cube for it. The function does not return a value .If there is no value passed to the function in function call, the function should calculate cube of 2.
def cube( a = 2 ) :
print( "Cube of ", a ,":" , a ** 3 )
num = input("Enter a number: ") # For empty press Enter
if num == "" :
cube()
else :
cube(int(num))(ii) A function that takes two char arguments and returns True if both the arguments are equal otherwise False. Test both these functions by giving appropriate function call statements.
def chr(char1, char2):
if char1 == char2:
return True
else:
return False
char1 = input("Enter a Char 1: ")
char2 = input("Enter a Char 2: ")
result=chr(char1,char2)
if result==True:
print("Both the characters are equal")
else:
print("Both the characters are unequal")[For example, If numbers passed are 491 and 278, then the function will return 491 because it has got minimum one's digit out of two given numbers (491's 1 is < 278's 8)].
def min(x , y ) :
a = x % 10
b = y % 10
if a < b :
return x
else :
return y
first = int(input("Enter first number: "))
second = int(input("Enter second number: "))
print("Minimum one's digit number: " , min( first , second ) )10. Write a program that generates a series using a function which takes first and last values of the series and then generates four terms that are equidistant.
[For example, If two numbers passed are 1 and 7 then function returns 1 3 5 7.]
def ser( a , b ) :
d = int ( ( b - a ) / 3 )
print("Series: " , a , a + d , a + 2*d , b )
first = int(input("Enter first Term: "))
last = int(input("Enter last Term: "))
ser(first , last )11. Write a program to read the contents of file and display the total number of uppercase ,digit, lower case and special characters.
file=open("story.txt","r")
u=l=spl=d=0
for line in file:
for word in line:
for ch in word:
if ch.isupper():
u+=1
elif ch.islower():
l+=1
elif ch.isdigit():
d+=1
else:
spl+=1
print("Total number of uppercase characters:",u)
print("Total number of lowercase characters:",l)
print("Total number of digit characters:",d)
print("Total number of special characters:",spl)12. Write a function countmy() in python to read the text file "Data.txt" and count the number of times "my" occurs in the file.
def countmy(file):
c=0
for line in file:
line=line.split()
for word in line:
word=word.lower()
if word=='my':
c+=1
return c
file=open('data.txt','r')
totw=countmy(file)
print("My occurs ",totw,"times.")13. Write a program to read a file "Top.txt" and print the contents of file along with the number of lines started with ‘A’.
def linesA(file):
c=0
lines=file.readlines()
for line in lines:
if line[0]=='A' or line[0]=='a':
c+=1
return c
file=open("story.txt","r")
tot=linesA(file)
print("Total number of lines starting with A:",tot)14. Write a function Div3and5() that takes a 10 elements numeric tuple and return the sum of elements which are divisible by 3 and 5.
def Div3and5(ar):
sum=0
for element in ar:
if element%3==0 or element%5==0:
sum+=element
return sum
t=eval(input("Enter 10 integer values : "))
tot=Div3and5(t)
print("Total Sum :",tot)15. Write a program to create binary file to store RollNo, Name and Marks and update marks of entered RollNo.
import pickle
student=[]
file=open("student.dat","wb")
while 1:
roll=int(input("Enter Roll number:"))
name=input("Enter Name:")
marks=int(input("Enter marks:"))
student.append([roll,name,marks])
print("Data saved sucessfully..")
ch=input("Do you want to continue(y/n):")
if ch in 'Nn':
break
pickle.dump(student,file)
file.close()
file=open("student.dat","rb+")
student=[]
data=pickle.load(file)
file.seek(0)
rno=int(input("Enter the roll number to be update:"))
flag=0
rec=[]
for i in data:
if i[0]==rno:
print("Name:",i[1])
print("Current Marks:",i[2])
i[2]=int(input("Enter new marks: "))
print("Record updated sucessfully...")
flag=1
rec.append(i)
else:
rec.append(i)
pickle.dump(rec,file)
if flag==0:
print("Given roll number not found...")
file.close()
print("Updated data details:")
file=open('student.dat',"rb")
student=[]
student=pickle.load(file)
print(student)
file.close()16. Program to create binary file to store rollno and name and search any rollno and display name if rollno found otherwise "Roll no not found".
import pickle
file=open("student.dat","wb")
while 1:
roll=int(input("Enter Roll Number:"))
name=input("Enter Name:")
data=[roll,name]
pickle.dump(data,file)
print("Data saved Sucessfully..")
ch=input("Do you want to enter more data(y/n):")
if ch in 'nN':
break
file.close()
file=open("student.dat","rb")
rno=int(input("Enter the roll number to be search:"))
flag=0
try:
while 1:
data=pickle.load(file)
if data[0]==rno:
print(data[1])
flag=1
break
except EOFError:
print("No more data")
if flag==0:
print("Roll number not found..")
file.close()17. Write a Python program to write a nested Python list( contains Item_Name, description and price) to a CSV file in one go. After writing the CSV file read the CSV file and display the content.
import csv
fh=open("items.csv","w",newline='')
iwriter=csv.writer(fh)
ans="y"
itemrec=[["Item_Name","Description","Price"]]
print("Enter Item Details")
while ans=="y" or ans=="Y":
iname=input("Enter Item Code : ")
desc=input("Enter description : ")
price=float(input("Enter price : "))
itemrec.append([iname,desc,price])
ans=input("Do you want to enter more Items(Y/N):")
else:
iwriter.writerows(itemrec)
print("Records written successfully")
fh.close()
file=open("items.csv","r")
ireader=csv.reader(file)
for i in ireader:
print(i)
file.close()s=[]
def push():
global s
if len(s)>=5:
print("Stack Over Flow")
else:
roll=int(input("Enter roll:"))
name=input("Enter name:")
marks=int(input("Enter marks:"))
s.append([roll,name,marks])
print("Sucessfully added your details")
def pop():
global s
if len(s)==0:
print("Stack Under flow")
else:
print(s[-1],"popped now")
s.pop(-1)
def display():
global s
if len(s)==0:
print("Stack is empty now")
else:
for i in range(len(s)-1,-1,-1):
print(s[i])
while 1:
print("1.Push")
print("2.Pop")
print("3.Display")
print("4.Exit")
ch=int(input("Enter you choice:"))
if ch==1:
push()
elif ch==2:
pop()
elif ch==3:
display()
elif ch==4:
break
else:
print("Invalid choice")q=[]
def enqueue():
global q
if len(q)>=5:
print("Queue is full")
else:
roll=int(input("Enter roll:"))
name=input("Enter name:")
marks=int(input("Enter marks:"))
data=[roll,name,marks]
q.append(data)
print("Your data saved sucessfully")
def dequeue():
global q
if len(q)==0:
print("Queue is empty")
else:
print(q[0]," deleted")
q.pop(0)
def display():
global q
if len(q)==0:
print("Queue is empty now")
else:
print(q)
while 1:
print("1.Enqueue")
print("2.Dequeue")
print("3.Display")
print("4.Exit")
ch=int(input("Enter your choice:"))
if ch==1:
enqueue()
elif ch==2:
dequeue()
elif ch==3:
display()
elif ch==4:
break
else:
print("Invalid choice")import mysql.connector
con=mysql.connector.connect(host='localhost',user='root',password='')
cur=con.cursor()
cur.execute("CREATE DATABASE IF NOT EXISTS COMPANY")
cur.execute("USE COMPANY")
cur.execute("CREATE TABLE IF NOT EXISTS EMPLOYEE(EMPNO INT,NAME CHAR(35),DEPT CHAR(35),SALARY INT)")
con.commit()
while 1:
print("1.ADD")
print("2.DISPLAY")
print("3.EXIT")
ch=int(input("Enter Choice:"))
if ch==1:
e=int(input("Enter employee no"))
n=input("Enter name:")
d=input("Enter department:")
s=int(input("Enter salary:"))
q="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cur.execute(q)
con.commit()
print("Data Saved sucessfully")
elif ch==2:
q="select * from employee"
cur.execute(q)
result=cur.fetchall()
for row in result:
print(row)
elif ch==3:
break
else:
print("Invalid choice")21. Write a program to connect with database and search employee numbers in table and display record, if employee number not found display appropriate message.
import mysql.connector as mysql
con=mysql.connect(host='localhost',user='root',password='')
cur=con.cursor()
cur.execute("DROP DATABASE COMPANY")
cur.execute("CREATE DATABASE COMPANY")
cur.execute("USE COMPANY")
cur.execute("CREATE TABLE EMPLOYEE(EMPNO INT,NAME CHAR(35),DEPT CHAR(35),SALARY INT)")
con.commit()
while 1:
print("1.Add")
print("2.Search")
print("3.Exit")
ch=int(input("Enter Choice:"))
if ch==1:
e=int(input("Enter Employee no: "))
n=input("Enter name: ")
d=input("Enter department: ")
s=int(input("Enter salary: "))
q="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cur.execute(q)
con.commit()
print("Data saved successfully")
elif ch==2:
q="select * from employee"
cur.execute(q)
s=int(input("Enter the roll number to be search: "))
result=cur.fetchall()
for row in result:
if row[0]==s:
print(row)
break
else:
print("Given roll number not found")
elif ch==3:
break
else:
print("Invalid choice")22. Write a program to connect with database and update the employee record by entered employee number.
import mysql.connector as mysql
con=mysql.connect(host='localhost',user='root',password='')
cur=con.cursor()
cur.execute("DROP DATABASE COMPANY")
cur.execute("CREATE DATABASE COMPANY")
cur.execute("USE COMPANY")
cur.execute("CREATE TABLE EMPLOYEE(EMPNO INT,NAME CHAR(35),DEPT CHAR(35),SALARY INT)")
con.commit()
while 1:
print("1.ADD")
print("2.UPDATE")
print("3.DISPLAY")
print("4.EXIT")
ch=int(input("Enter Choice:"))
if ch==1:
e=int(input("Enter employee no:"))
n=input("Enter name:")
d=input("Enter department:")
s=int(input("Enter salary:"))
q="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cur.execute(q)
con.commit()
print("Data saved sucessfully")
elif ch==2:
no=int(input("Enter the emp no to be update:"))
cur.execute("select * from employee where empno={}".format(no))
data=cur.fetchall()
if cur.rowcount==0:
print("Given data not found")
else:
print("You can update only department and salary of employee")
dep=input("Enter new department:")
sal=int(input("Enter new salary:"))
try:
q="update employee set dept='{}' ,salary={} where empno={}".format(dep,sal,no)
cur.execute(q)
con.commit()
print("Update sucessfully")
except Exception as e:
print(e,"found")
elif ch==3:
cur.execute("select * from employee")
data=cur.fetchall()
print(data)
elif ch==4:
break
else:
print("Invalid choice")import mysql.connector as mysql
con=mysql.connect(host='localhost',user='root',password='')
cur=con.cursor()
cur.execute("DROP DATABASE COMPANY")
cur.execute("CREATE DATABASE COMPANY")
cur.execute("USE COMPANY")
cur.execute("CREATE TABLE EMPLOYEE(EMPNO INT,NAME CHAR(35),DEPT CHAR(35),SALARY INT)")
con.commit()
while 1:
print("1.ADD")
print("2.DELETE")
print("3.DISPLAY")
print("4.EXIT")
ch=int(input("Enter Choice:"))
if ch==1:
e=int(input("Enter employee no:"))
n=input("Enter name:")
d=input("Enter department:")
s=int(input("Enter salary:"))
q="insert into employee values({},'{}','{}',{})".format(e,n,d,s)
cur.execute(q)
con.commit()
print("Data Saved sucessfully...")
elif ch==2:
no=int(input("Enter the emp no to be deleted:"))
cur.execute("select * from employee where empno={}".format(no))
data=cur.fetchall()
if cur.rowcount==0:
print("Given data not found")
else:
q="delete from employee where empno={}".format(no)
cur.execute(q)
con.commit()
print("Deleted sucessfully")
elif ch==3:
cur.execute("select * from employee")
data=cur.fetchall()
print(data)
elif ch==4:
break
else:
print("Invalid choice")