num = int(input("Enter any number :"))
fact = 1 
n = num   
while num>1: 
     fact = fact * num
     num - =1
print("Factorial of a number ", n , " is  equal to:",fact)

OUTPUT : 

Enter any number :6

Factorial of a number 6 is equal to : 720

Program to input any number from user #Check it is Prime number of not

import math num = int(input("Enter any number :"))

isPrime=True

for i in range(2,int(math.sqrt(num))+1):

if num % i == 0:

isPrime = False

if isPrime:

print("## Number is Prime ##")

else:

print("## Number is not Prime ##")

OUTPUT

Enter any number :29

## Number is Prime ##

Enter any number :57

## Number is not Prime ##

Enter any number :71

## Number is Prime ##

Enter any number :97

## Number is Prime ##

 

Enter any number :63

## Number is not Prime ##

#Program to find sum of elements of list recursively

def findSum(lst,num):

if num==0:

return 0

else:

return lst[num-1]+findSum(lst,num-1)

mylist = [] # Empty List

#Loop to input in list

num = int(input("Enter how many number :"))

for i in range(num):

n = int(input("Enter Element "+str(i+1)+":"))

mylist.append(n) #Adding number to list

sum = findSum(mylist,len(mylist))

print("Sum of List items ",mylist, " is :",sum)

OUTPUT

Enter how many number :6

Enter Element 1:10

Enter Element 2:20

Enter Element 3:30

Enter Element 4:40

Enter Element 5:50

Enter Element 6:60

Sum of List items [10, 20, 30, 40, 50, 60] is : 210

#Program to find 'n'th term of fibonacci series, 

#Fibonacci series : 0,1,1,2,3,5,8,13,21,34,55,89,...

#nth term will be counted from 1 not 0

def nthfiboterm(n):

if n<=1:

return n

else:

return (nthfiboterm(n-1)+nthfiboterm(n-2))

num = int(input("Enter the 'n' term to find in fibonacci :"))

term =nthfiboterm(num)

print(num,"th term of fibonacci series is :",term)

OUTPUT: 

Enter the 'n' term to find in fibonacci :10

10 th term of fibonacci series is : 55

#Program to find the occurence of any word in a string

def countWord(str1,word):

s = str1.split()

count=0

for w in s:

if w==word:

count+=1

return count

str1 = input("Enter any sentence :")

word = input("Enter word to search in sentence :")

count = countWord(str1,word)

if count==0:

print("## Sorry! ",word," not present ")

else:

print("## ",word," occurs ",count," times ## ")

Enter any sentence : my computer your computer our computer everyones computer

Enter word to search in sentence :computer

## computer occurs 4 times

## Enter any sentence : learning python is fun

Enter word to search in sentence :java

## Sorry! java not present

#Program to read content of file line by line #and display each word separated by '#'

f = open("file1.txt")

for line in f:

words = line.split()

for w in words:

print(w+'#',end='')

print()

f.close()

NOTE : if the original content of file is: India is my country I love python Python learning is fun

OUTPUT

India#is#my#country# I#love#python# Python#learning#is#fun#

#Program to read content of file #and display total number of vowels, consonants, lowercase and uppercase characters

f = open("file1.txt")

v=0 c=0 u=0 l=0 o=0

data = f.read()

vowels=['a','e','i','o','u']

for ch in data:

if ch.isalpha():

if ch.lower() in vowels:

v+=1

else:

c+=1

if ch.isupper():

u+=1

elif ch.islower():

l+=1

elif ch!=' ' and ch!='\n':

o+=1

print("Total Vowels in file :",v)

print("Total Consonants in file n :",c)

print("Total Capital letters in file :",u)

print("Total Small letters in file :",l)

print("Total Other than letters :",o)

f.close()

NOTE : if the original content of file is: "India is my country I love python Python learning is fun"

OUTPUT

Total Vowels in file : 16

Total Consonants in file n : 30

Total Capital letters in file : 2

Total Small letters in file : 44

Total Other than letters : 4

#Program to create a binary file to store Rollno and name #Search for Rollno and display record if found #otherwise "Roll no. not found"

import pickle

student=[ ]

f=open('student.dat','wb')

ans='y'

while ans.lower()=='y':

roll = int(input("Enter Roll Number :"))

name = input("Enter Name :")

student.append([roll,name])

ans=input("Add More ?(Y)")

pickle.dump(student,f)

f.close()

f=open('student.dat','rb')

student=[]

while True:

try:

student = pickle.load(f)

except EOFError:

break
ans='y'

while ans.lower()=='y':

found=False

r = int(input("Enter Roll number to search :"))

for s in student:

if s[0]==r:

print("## Name is :",s[1], " ##")

found=True

break

if not found:

print("####Sorry! Roll number not found ####")

ans=input("Search more ?(Y) :")

f.close()

OUTPUT

Enter Roll Number :1

Enter Name :Rajiv

Add More ?(Y)y

Enter Roll Number :2

Enter Name :Anik

Add More ?(Y)y

Enter Roll Number :3

Enter Name :Kirti

Add More ?(Y)n

Enter Roll number to search :1

## Name is : Rajiv

## Search more ?(Y) :y

Enter Roll number to search :3

## Name is : kirti

## Search more ?(Y) :y

Enter Roll number to search :5

####Sorry! Roll number not found ####

Search more ?(Y) :n

import csv

with open('myfile.csv',mode='a') as csvfile:

mywriter = csv.writer(csvfile,delimiter=',')

ans='y'

while ans.lower()=='y':

eno=int(input("Enter Employee Number "))

name=input("Enter Employee Name ")

salary=int(input("Enter Employee Salary :"))

mywriter.writerow([eno,name,salary])

print("## Data Saved... ##")

ans=input("Add More ?")

ans='y'

with open('myfile.csv',mode='r') as csvfile:

myreader = csv.reader(csvfile,delimiter=',')

while ans=='y':

found=False

e = int(input("Enter Employee Number to search :"))

for row in myreader:

if len(row)!=0:

if int(row[0])==e:

print("============================")

print("NAME :",row[1])

print("SALARY :",row[2])

found=True

break

if not found:

print("==========================")

print(" EMPNO NOT FOUND")

print("==========================")

ans = input("Search More ? (Y)")

Output : 

Enter Employee Number 1

Enter Employee Name Amit

Enter Employee Salary :90000

## Data Saved... ##

Add More ?y

Enter Employee Number 2

Enter Employee Name Sunil

Enter Employee Salary :80000

## Data Saved... ##

Add More ?y

Enter Employee Number 3

Enter Employee Name Satya

Enter Employee Salary :75000

## Data Saved... ##

Add More ?n

Enter Employee Number to search :2

============================

NAME : Sunil

SALARY : 80000

Search More ? (Y)y

Enter Employee Number to search :3

============================

NAME : Satya SALARY :

75000 Search More ? (Y)y

Enter Employee Number to search :4

==========================

EMPNO NOT FOUND

==========================

Search More ? (Y)n

#Program to read line from file and write it to another line

#Except for those line which contains letter 'a'

f1 = open("file2.txt")

f2 = open("file2copy.txt","w")

for line in f1:

if 'a' not in line:

f2.write(line)

print(“## File Copied Successfully! ##”)

f1.close()

f2.close()

NOTE:

Content of file2.txt is "a quick brown fox one two three four five six seven India is my country eight nine ten bye!"

OUTPUT

## File Copied Successfully! ##

NOTE:

After copy content of file2copy.txt one two three four five six seven eight nine ten bye!

# creating list with college names..

colleges = ["SIIET", "GNIT", "AVN"]

print(colleges)

# appending new college in collges list

colleges.append("MVSR")

#checking if its added or not

print(colleges)

#adding a new college at a positon

colleges.insert(1,"BHARAT")

print(colleges)

#remove a name from colleges colleges.remove("BHARAT")

print(colleges)

#remove a name with an index value

del colleges[1]

# NOTE: index starts from 0 so 2nd value in list will be removed

print(colleges)

Output: 

["SIIET", "GNIT", "AVN"] 

["SIIET", "GNIT", "AVN", "MVSR"]

["SIIET", "BHARAT","GNIT", "AVN", "MVSR"]

["SIIET", "GNIT", "AVN", "MVSR"]

["SIIET", "AVN", "MVSR"]