Updating Lists:
You can update single or multiple elements of lists by giving the slice on the lefthand side of the assignment operator, and you can add to elements in a list with the append() method. Following is a simple example:
# !/user/bin/python
list = [‘physics’, ‘chemistry’, 1997, 2000];
print “Value available at index 2 :”
print list[2];
list [2] = 2001;
print “New value available at index 2 :”
print list [2];
When the above code is executed it produces the following result:
Value available at index 2 :
1997
New value available at index 2 :
2001
Delete List Elements:
To remove a list element, you can use either the del statement if you know exactly which element(s) you are deleting of the remove() method if you do not know. Following is a simple example :
# !/user/bin/python
list1 = [‘physics’, ‘chemistry’, 1997, 2000];
print list1; del list1 [2];
print “After deleting value at index 2:”
print list1;
When the above code is executed, it produces the following result:
[‘physics’, ‘chemistry’, 1997, 2001]
After deleting value at index 2 :
[‘physics’, ‘chemistry’, 2000]
