Adding to a List - Lakelands Computing

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Adding Items to a List
The list page introduced lists and showed how to create them and print the list and values  in it. This page looks at how to add to a list. There are two ways to add a value to a list:

You can either append it to the end of the list, or use insert to add a value to a particular place in the list using the index numbers.

Appending
  • toys = ["car","lego","barbie"]
  • toys.append("robot")

This would add "robot" to the end of the toys list. Note the way the command is used : listname.append(object to be added) The list would now be ["car","lego","barbie","robot"]

Inserting
  • toys = ["car","lego","barbie","robot"]
  • toys.insert(1,"teddy")

The number inside the bracket (the 1 in this case) states the index you want to add the value into. So this would add  "teddy" to index 1. The list would now be ["car","teddy",lego","barbie","robot"] .
All Text copyright Lakelands Academy & Mr T Purslow 2020.
All images copyright free / creative commons unless otherwise stated.
You are welcome to use under a Creative Commons Attribution-nonCommercial-ShareAlike License.
All Text copyright Lakelands Academy & Mr T Purslow 2020.  All images copyright free / creative commons unless otherwise stated. You are welcome to use under a Creative Commons Attribution-nonCommercial-ShareAlike License.
All Text copyright Lakelands Academy & Mr T Purslow 2020.  All images copyright free / creative commons unless otherwise stated. You are welcome to use under a Creative Commons Attribution-nonCommercial-ShareAlike License.
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