check if string is present in python code example

Example 1: if substring not in string python

fullstring = "StackAbuse"
substring = "tack"

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

Example 2: python check if string in string

if "blah" not in somestring: 
    continue

Example 3: if substring not in string python

>>> string = "Hello World"
>>> # Check Sub-String in String
>>> "World" in string
True
>>> # Check Sub-String not in String
>>> "World" not in string
False

Example 4: python check if value in string

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