PROGRAM:
OUTPUT:
def writ_an_f():
fin=open("D:\\book.txt","r")
fout=open("D:\\story.txt","w")
s=fin.readlines()
for j in s:
if 'a' in j:
fout.write(j)
fout.close()
fin.close()
def cnt():
f=open("D:\\test2.txt","r")
cont=f.read()
print(cnt)
v=0
cons=0
l_c_l=0
u_c_l=0
for ch in cont:
if (ch.islower()):
l_c_l+=1
elif(ch.isupper()):
u_c_l+=1
ch=ch.lower()
if( ch in ['a','e','i','o','u']):
v+=1
elif (ch in ['b','c','d','f','g',
'h','j','k','l','m',
'n','p','q','r','s',
't','v','w','x','y','z']):
cons+=1
f.close()
print("Vowels are: ",v)
print("consonants are : ",cons)
print("Lower case letters are : ",l_c_l)
print("Upper case letters are : ",u_c_l)
#Main program
while True:
print("\n\nText files Menu driven program:")
print("1. Remove all the lines that contain" )
print(" the character `a’ in a file and write it" )
print(" to another file\n" )
print("2.Read a text file and display the" )
print(" number of vowels/ consonants/ uppercase/" )
print(" lowercase characters in the file\n" )
print("3. Exit\n")
ch=int(input("Enter your choice : "))
if ch==1:
writ_an_f()
elif ch==2:
cnt()
elif ch==3:
break
else:
print( " invalid choice ")
