Split Strings by Separator — Python

# Time:  O(n * l)
# Space: O(l)

# string
class Solution(object):
    def splitWordsBySeparator(self, words, separator):
        """
        :type words: List[str]
        :type separator: str
        :rtype: List[str]
        """
        return [w for word in words for w in word.split(separator) if w]