Python
# Program to check pangram
import string
sentence = input("Enter a sentence: ").lower()
alphabet_set = set(string.ascii_lowercase)
letters = set(ch for ch in sentence if ch.isalpha())
if alphabet_set.issubset(letters):
print("Pangram")
else:
print("Not a pangram")Output
Enter a sentence: The quick brown fox jumps over the lazy dog Pangram
We compare the set of all lowercase letters with the set of letters present in the sentence.