3.2 List basics

Creating a list

• A container is a construct used to group related values together and contains references to other objects instead of data.
• A list is a container created by surrounding a sequence of variables or literals with brackets [ ].
  • Ex: my_list = [10, 'abc']
• A list item is called an element
• A list is also a sequence, meaning the contained elements are ordered by position in the list, known as the element's index, starting with 0
• lists can be empty

• lists are mutable, which means they can be altered:

  

Add and remove elements from list

• A method instructs an object to perform some action, and is executed by specifying the method name following a "." symbol and an object.
• list.append(value): Adds value to the end of list.
  • Ex: my_list.append('abc')
• list.pop(i): Removes the element at index i from list.
  • Ex: my_list.pop(1)
• list.remove(v): Removes the first element whose value is v.
  • Ex: my_list.remove('abc')
• Sequence-type methods and functions

Example: