How to match any string from a list of strings in regular expressions in python?

Question

Lets say I have a list of strings,

string_lst = [\'fun\', \'dum\', \'sun\', \'gum\']

I want to make a regular expression, where at a point

Answer 1

In line with @vks reply - I feel this actually does the comeplete task..

finds = re.findall(r"(?=(\b" + '\\b|\\b'.join(string_lst) + r"\b))", x)

Adding word boundary completes the task!