Is there a way I can replace/remove everything in a string except for certain phrases?

Question

If I had a string and a list like this:

myString = "This is a string which has stuff in it."
myList = ["string", "things", "python"]

Is there a way I can remove everything in myString except for the things that are listed in myList (in this case everything is removed except the word 'string')? Any help would be appreciated

Answer 1

myString = "This is a string which has stuff in it."
myList = ["string", "things", "python", "it"]

print([x for x in myList if x in myString])

OUTPUT :

['string', 'it']

Answer 2

import re
myString = "This is a string which has stuff in it."
myList = ["string", "things", "python","it"]
print(" ".join(word for word in re.sub("[^\w]", " ",  myString).split() if word in myList))

Answer 3

mytxt = "some sentence to ignore phase and carry on"
reg = re.compile(r"(ignore phase)")
final_str = re.sub(reg,'',mytxt)
print(final_str)

Output -

some word to and carry on