check if a string contains a substring 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: how to check for a substring in python

def find_string(string,sub_string):
	return string.find(sub_string)
#.find() also accounts for multiple occurence of the substring in the given string

Example 3: python check if string in string

if "blah" not in somestring: 
    continue

Example 4: check if string contains python

>>> str = "Messi is the best soccer player"
>>> "soccer" in str
True
>>> "football" in str
False