LIST DATA TYPES

COPYING A LIST:

Occasionally you will want to copy a list one simple way to copy your list is to use to copy method

PYTHON LIST SORTING

In this section we sort list elements python has built  in list method sort ( ) and sorted ( ) function for doing sorting

Example: # sorting  .  PY

N=[3, 4, 5, 1, 2, 8, 9, 7, 6]

Print (n)

N . sort(n)

The sort ( ) method has an optional key parameters the parameter specifies a function to be called on each list element prior making comparisons

SETS

The set data will be print unordered list :

A set data type is defined as an “unordered” collection of distinct hash able objects

 According to the python 3 documentation you can see a set for membership testing, removing duplicates from a sequence and computing mathematical operations , like intersection ,  union , difference , and symmetric difference

There is two types of set built into the python language

1. Set which is mutable
2. Frozen set which is immutable and hash able
3. Create set
4. Accessing a set members
5. Changing items
6. Adding items
7. Removing items
8. Clearing and deleting a set
9. Set operations
10. CREATING SET:

The set data is creating process will be creating set

• Accessing set members :

You can check if an item is in a set by using python is operator

• Changing items :

Once a set is created you cannot change and of its items . how ever you can add new a set 

How to removing items :

We can remove set items from sets in several possible ways

   We can use :

1. Remove ( )
2. Discard  ( )
3. Pop ( )

 Using . Remove ( ) :

      The remove  () method will select to remove