Simplified
def AmIYelling(input_sentence): return all([ x.isupper() for x in input_sentence if x.isalpha() ])- def AmIYelling(input_sentence):
return len([l for l in input_sentence if ((l.isalpha() and l.isupper())or not l.isalpha())]) == len(input_sentence)- return all([ x.isupper() for x in input_sentence if x.isalpha() ])