Vickys Progr@mming environment

# Python files  demo

# This function writes data into file
def fileWrite():
# fopen=open("sample.txt","w+")
with open("sample.txt","w+") as fopen: # Trying to open a file using 'with' operator. This automatically closes the file.
msg=raw_input('\nEnter the string you want to add to file:\t')
fopen.write(msg)
# fopen.close()

# This function reads data from a file
def fileRead():
fopen=open("sample.txt","r+")
msg=fopen.read() # You can also specify the read(arg) to some numeric value to read till specific line size.
print '\nCharacters read from the file: ',msg
fopen.close()

# This function will append data to existing file
def fileAppend():
fopen=open("sample.txt","a+")
msg=raw_input('\n Enter the string you want to append: ')
fopen.write(msg)
# Reading characters from file after appending
str=fopen.read()
print str

# This function splits words in a file & also counts # of words
def fileSplit():
with open("sample.txt","r+") as fobj:
data=fobj.read()
count=0
for i in data:
word=data.split()
print word
print 'Word count is:',data.count(' ')+1 # This function counts number of words in file

print '\n *** This program demonstrates various operations on Files****'
print '\n 1. Write to a file \n 2. Read from file \n 3. Append data to file \n 4. Word count in file'
option=input('Enter the option you want to perform:')

if option==1:
print '***Write() will append the data to mentioned file (or) will create a new file ***'
fileWrite()

elif option==2:
print '\n *** Read() function will try to read data from existing file***'
fileRead()

elif option==3:
print '\n *** APpend() function will append data to mentioned file (or) create a new file if file doesn\'t exist'
fileAppend()

elif option==4:
print '\n ****Counting Number of words in file ****'
fileSplit()

else:
print 'Your option was not right'

# Output:

#*****geometricClass.py*****

# Python Geometric class

class geometryClass:
def __init__(self,length,breath,radius,height,base1,base2):
self.length=length
self.breath=breath
self.radius=radius
self.height=height
self.base1=base1
self.base2=base2
def square(self):
area_sqr=self.length ** 2
return area_sqr;
def rectangle(self):
area_rect=self.length*self.breath
return area_rect;
def circle(self):
area_circle=3.14*(self.radius ** 2)
return area_circle;
def triangle(self):
area_tri=0.5*self.base1*self.height
return area_tri;
def parallelogram(self):
area_para=self.base2*self.height
return area_para;
def trapezoid(self):
area_trap=0.5*self.base1*self.base2*self.height;
return area_trap;

shape=geometryClass(5,3,2,4,6,3);
print shape.square();

# Python Function demo

print '*** Select the operation you would like to perform *****'
print '\n 1. Prime Number between given interval \n 2. Armstrong Number \n 3. Even or Odd \n 4. Factorial Of number \n'
option=input('Option:')
message='********* Welcome to python programming *****'
def test(message):
print message
return;
test(message);

def prime_number(prime_range):
for num in range(2,prime_range+1):
for i in range(2, num):
if (num%i==0):
break
else:
print num
return;

def armstrongNumber(num):
temp=num;
sum=0;
while temp >1:
rem=temp%10;
sum+=rem**3
temp
if sum==num:
print (num,'is an Armstrong Number')
else:
print (num,'is not an Armstrong Number')
return;

def evenodd(num):
if(num%2==0):
print (num,'is Even Number')
else:
print (num,'is Odd Number')
return;

def factorial(num):
fact=1
if(num < 1):
print '\n Factorial doesnt exist for negative numbers'
elif num==0:
print '\n Factorial of 0 is 1'
else:
for i in range(1, num+1):
fact=fact*i;
print ('\n Factorial of ',num,' is: ',fact)
return;

if option==1:
prime_range=input('\n Enter the range till you want to find prime numbers:')
prime_number(prime_range);

elif option==2:
num=input('\n Enter the number to check if it is armstrong or not: ')
armstrongNumber(num);

elif option==3:
num=input('\n Enter the number to find even or odd: ')
evenodd(num);

elif option==4:
num=input('\n Enter the number to find factorial: ')
factorial(num);
else:
print '\n Invalid option'