Remove elements

numbers = [1,2,3,4,5,]
numbers [1,4] = []
numbers = [1,5]

This has similar effect to the delete statement and is related to replace. In this case you are simply replacing all the elements from position 1 up to (but not including) position 4 and replacing it with [] - an empty list. The items that survive in the list are those in position [0,4]. 

Insert elements

numbers = [1,5]
numbers [1:1] = [2,3,4]
numbers
[1,2,3,4,5,]

The inserted elements are placed in the list at position 1

List statement, assign to slices

name = list('Pearl')
name
['P','e','a,'r','l'']
name[2:] = list('ar')
name
['P','e','a','r']

List statement turned the string ('Pearl') into a list.
The list('ar') replaces anything from position 2 onwards in the name list, hence it's new value being ['P','e','a','r']

Deletion

names = ['Alice', 'Beth', 'Julie', 'Cecil', 'Gary']
del names [2]
names
['Alice', 'Beth', 'Cecil', 'Gary']

Use the del function to delete item from list.

Changing Lists

- assignment:
x = [1,1,1] - Declare list and its values
x[1] = 2 - Assign value of 2 to position 1
x
[1,2,1,] - New value of x

To change list items, index the item you want to change (x[1]) and assign a new value to it (x[1] =2).

Len Min/Max

example:

numbers = [100, 34, 678]
len(numbers)
3

max(numbers)
678

min(numbers)
34

max(2,3)
3

min(2,3)

Len function returns either the highest or lowest values in a sequence (the first two examples) or directly as a sequence argument (the last two examples).

Summary

Sequences - data structure with numbered elements
Membership - whether a value can be found in a sequence
Methods - like functions but are tied to a specific value