Python3 multiple word match in big texts with Aho-Corasick

ahocorasick_string_search.py

#!/usr/bin/env python3
# pip3 install pyahocorasick
# Matching time: Θ(n + o) with n being length of the haystack, o being the number of occurrences
import ahocorasick

wordlist = [
    "password",
    "secret",
    "privatekey",
    "private_key",
    "BEGIN PRIVATE KEY",
    "BEGIN RSA PRIVATE KEY"
]

haystack = "<VERY LONG STRING THAT YOU WANT TO SEARCH>"

automaton = ahocorasick.Automaton()

for idx, word in enumerate(wordlist):
    testphrase = word.strip()
    automaton.add_word(testphrase, testphrase)
    
automaton.make_automaton()

matches = automaton.iter(haystack)

for result in matches:
    print(result)
    endindex, word = result

# Example output (end index, found word):
"""
(342, 'password')
(28482, 'BEGIN RSA PRIVATE KEY')
(342120, 'password')
(367544, 'secret')
"""