Practical Programming, 2nd Edition

List Methods

Lists are objects and thus have methods. Table 10, ​List Methods​ gives some of the most commonly used list methods.

Table 10. List Methods

Method	Description
L.append(v)	Appends value v to list L
L.clear()	Removes all items from list L
L.count(v)	Returns the number of occurrences of v in list L
L.extend(v)	Appends the items in v to L
L.index(v)	Returns the index of the first occurrence of v in L—an error is raised if v doesn’t occur in L.
L.index(v, beg)	Returns the index of the first occurrence of v at or after index beg in L—an error is raised if v doesn’t occur in that part of L.
L.index(v, beg, end)	Returns the index of the first occurrence of v between indices beg (inclusive) and ...