filename = input("Give me a file name: ")
phrase = input("What phrase you want to find: ")

def phrase_lookup(filename, phrase):
    try:
        with open(filename, "r") as f:
            for line_num, line in enumerate(f, 1):
                if phrase in line:
                    bold_phrase = line.replace(phrase, f"\033[1m{phrase}\033[0m")
                    print(f"Found '{phrase}' in line {line_num}: {bold_phrase.strip()}")
    except FileNotFoundError:
        print(f"The file {filename} does not exists.")

if __name__=="__main__":
    phrase_lookup(filename, phrase)