Remove all occurrences of words in a string from a python list

Question

I\'m trying to match and remove all words in a list from a string using a compiled regex but I\'m struggling to avoid occurrences within words.

Current:

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Answer 1

One problem is that only the first \b is inside a raw string. The second gets interpreted as the backspace character (ASCII 8) rather than as a word boundary.

To fix, change

regex = re.compile(r'\b('+remove+')\b', flags=re.IGNORECASE)

to

regex = re.compile(r'\b('+remove+r')\b', flags=re.IGNORECASE)
                                 ^ THIS

Answer 2

here is a suggestion without using regex you may want to consider:

>>> sentence = 'word1 word2 word3 word1 word2 word4'
>>> remove_list = ['word1', 'word2']
>>> word_list = sentence.split()
>>> ' '.join([i for i in word_list if i not in remove_list])
'word3 word4'