emoticons = [('SMILE',[':-)', ':)', '(:', '(-:']),
        ('LAUGH',[':-D', ':D', 'X-D', 'XD', 'xD']),
        ('LOVE', ['<3', ':*']),
        ('WINK', [';-)', ';)', ';-D', ';D', '(;', '(-;']),
        ('FROWN', [':-(', ':(', '(:', '(-:']),
        ('CRY', [':,(', ':'(', ':"(', ':(('])]


def token_to_emot(token):
    for (emoji, smileys) in emoticons:
        if token in smileys:
            converted = token.replace(token, emoji)
            return converted
        else:
            return token

sample_tweet = ['It', 'was', 'amazing', ':)']
processed_tweet = [token_to_emot(token) for token in sample_tweet]
print(processed_tweet)

['It', 'was', 'amazing', 'SMILE']