python 2.7 contains code example
Example 1: how to check if there is a word in a string in python
>>> str = "Messi is the best soccer player"
>>> "soccer" in str
True
>>> "football" in str
False
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