Most Common Word

Most Common Word.py

class Solution:
    def mostCommonWord(self, paragraph, banned):
        """
        :type paragraph: str
        :type banned: List[str]
        :rtype: str
        """
        p = re.compile(r"[!?',;.]")
        paraStrs = p.sub('', paragraph.lower()).split(' ')
      
        words = [ word for word in paraStrs if word not in banned]
        
        count = collections.Counter(words)
        return count.most_common(1)[0][0]