6.189 Homework 2, OPT.1 - Pig Latin Sentences

# 6.189 Homework 2.9 - Pig Latin Funtion
# 6.189 Homework 2, OPT.1 - Pig Latin Sentences

def pig_latin(word):
    """Converts a word into Pig Latin and returns it.
    This would be so much cleaner with a Regular Expression!"""
    first_letter = word[0].lower()
    two_let = ''
    punctuation=''
    if word[-1]=="!" or word[-1]=="." or word[-1]=="," or word[-1]=='"' or word[-1]=="'" or word[-1]=="?":
        punctuation=word[-1]
        word=word[:-1]
    if first_letter == 'a' or first_letter == 'e' or first_letter == 'i' or first_letter == 'o' or first_letter == 'u':
        return word+"hay"+punctuation
    else:
        try:
            two_let=word[0:2].lower()
        except:
            two_let=''
        if two_let=='th' or two_let=='st' or two_let=='qu' or two_let=='pl' or two_let=='tr':
            return word[2:]+first_letter+word[1]+'ay'+punctuation
        else:
            return word[1:]+first_letter+'ay'+punctuation



line_in = input('What do you wish to Pig? ')
line_out = ''
for word in line_in.split():
    line_out = line_out + ' ' + pig_latin(word)

print(line_out)