Remove lines that contain certain string

Question

I\'m trying to read a text from a text file, read lines, delete lines that contain specific string (in this case \'bad\' and \'naughty\'). The code I wrote goes like this:

Answer 1

You can make your code simpler and more readable like this

bad_words = ['bad', 'naughty']

with open('oldfile.txt') as oldfile, open('newfile.txt', 'w') as newfile:
    for line in oldfile:
        if not any(bad_word in line for bad_word in bad_words):
            newfile.write(line)

using a Context Manager and any.