how to see if a string contains a substring 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 str contains word

fullstring = "StackAbuse"
substring = "tack"

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

Example 3: python string contains

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

Example 4: 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 5: python check if string in string

if "blah" not in somestring: 
    continue