fullstring = "StackAbuse" substring = "tack" if fullstring.find(substring) != -1: print "Found!" else: print "Not found!"
def find_string(string,sub_string): return string.find(sub_string) #.find() also accounts for multiple occurence of the substring in the given string
def is_value_in_string(value: str, the_string: str): return value in the_string.lower()