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def nalpha():
fp=open("sample.txt","r")
na=0 
s=fp.read()
for i in s:
if iisalpha:
na+=1
fp.close().
print("No. of Alphabets:"‚na)
def nwords( ):
fp=open("sample.txt","r"')
s=fp.readO
1-s.split()
nw=len(1)
fp.close()
print("No. of words:"‚nw)
def nlines():
fp=open("sample.txt","r")
nl=0
1=fp.readlines0 get list
nl=len(1)
fp.close()
print("No. of lines:"‚ni)
while True:
print("1: No. of alphabets ")
print("2. No. of words ")
print("3: No. of lines ")
print("4: Exit"')
ch=int(input("enter your choice:")
if ch==1:
nalpha()
elif ch==2:
nwords( )
elif ch==3:
nlines( )
elif ch==4:
break else:
print("Invalid choice.")