find() searches a string for a specified, case-sensitive substring. It returns the substring’s lowest starting index, counting from 0, or -1 when no match exists. The substring must be a string; even the empty string is considered present in every string. section 8.1
Try a few searches
who = "me myself and I" who.find("and") # 10 who.find("you") # -1 who.find("e") # 1 The first result identifies where "and" begins. The second reports that "you" is absent. The third uses the first occurrence of "e". To search from the other direction, use rfind(), which returns the matching substring nearest the end. section 8.1
A useful pattern is to find a separator and then use its index with slicing. For a full name such as "Aqua Man", find(" ") locates the space; the text before it is the first name, and the text after it is the last name. section 12.2
Listing 12.2. Storing the first and last names in variables
space = name1.find(" ") #1
name1_first = name1[0:space] #2
name1_last = name1[space+1:len(name1)] #3
space = name2.find(" ") #4
name2_first = name2[0:space] #4
name2_last = name2[space+1:len(name2)] #4
Follow the complete name-splitting listing, which saves the space index and slices both names into separate variables. section 12.2
