Append string to new list if it doesn't include certain words

Question

bad_words = ['Hi', 'hello', 'cool']
new_strings = []
for string in old_strings:
    if bad_words not in old_strings:
        new_strings.append(string)

how do I iterate through bad_words so that it doesnt include the strings that have them in it?

@frigolit_tarzan, I added an answer that might be an alternative solution to your problem. — lmiguelvargasf, Jul 09 '20 at 16:45

score 3 · Accepted Answer · answered Jul 09 '20 at 15:50

3

Use any() with a list comprehension:

bad_words = ['Hi', 'hello', 'cool']
new_strings = [string 
               for string in old_strings 
               if not any(bad_word in string for bad_word in bad_words)]

answered Jul 09 '20 at 15:50

Jan

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score 1 · Answer 2 · answered Jul 09 '20 at 15:51

1

bad_words = ['Hi', 'hello', 'cool']
new_strings = []
for string in old_strings:
    if string not in bad_words: 
        new_strings.append(string)

you question is not clear but i think this is the answer based on some assumptions

answered Jul 09 '20 at 15:51

akhter wahab

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I guess it's the other way round. – Jan Jul 09 '20 at 15:52

score 0 · Answer 3 · answered Jul 09 '20 at 16:12

I think you are using the wrong data structure. If you want unique values in a collection you should use a set instead of a list.

bad_words = {'Hi', 'hello', 'cool'} # this is a set

# now if you want to add words to this set, call the update method
new_strings = []
bad_words.update(new_strings)

You can always convert a set into a string as follows:

bad_words = {'Hi', 'hello', 'cool'}
l = list(bad_words)

For more information when to use a set/list/dict check this.

Append string to new list if it doesn't include certain words

3 Answers3