Example -
a,e,i,o,u and A,E,I,O,U these are the vowel in all alphabets.
program-
print("Enter Any character")
a=input()
if a.isalpha():
if a=='a' or a=='e' or a=='i' or a=='o' or a=='u' or a=='A' or a=='E' or a=='I' or a=='O' or a=='U':
print("Yes it is a vowel")
else:
print("It is not the vowel")
else:
print("It is not the alphabet")
Enter Any character
a
Yes it is a vowel
Enter Any character
s
It is not the vowel
Enter Any character
2
It is not the alphabet