how to check if a string contains a specific word in python code example

Example 1: How do I check if a string contains a specific word?

$a = 'Hello world?';

if (strpos($a, 'Hello') !== false) { //PAY ATTENTION TO !==, not !=
    echo 'true';
}
if (stripos($a, 'HELLO') !== false) { //Case insensitive
    echo 'true';
}

Example 2: python string contains substring

fullstring = "StackAbuse"
substring = "tack"

if fullstring.find(substring) != -1:
    print "Found!"
else:
    print "Not found!"

Example 3: python str contains word

fullstring = "StackAbuse"
substring = "tack"

if substring in fullstring:
    print "Found!"
else:
    print "Not found!"

Example 4: python check if string

type('hello world') == str
# output: True

type(10) == str
# output: False

Example 5: python check if value in string

def is_value_in_string(value: str, the_string: str):
    return value in the_string.lower()