Linear search/searching for a word in a file/list

[Larz60+]

def check_word(word, text):
    words = text.split()
    for item in words:
        if item == word:
            return True
    return False

line = "It seems that there is no such accession nr in the file"
print(check_word('accession', line))
print(check_word('dog', line))

output:

Output:
True
False