Sunday, May 26, 2024

LIST in python

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  • List is an ordered sequence of items.
  • It is one of the most used data type in python and is very flexible.
  • All the items in list do not need to be of same type.
  • List is one of 4 built-in data types in Python used for collection of data, the other 3 are Tuple , set and Dictionary.
  • List is created using square brackets.



output: [12, 34, 56, 78, 89, 12]

 Items in a list

  • Items in a list are changeableordered  and allow duplicate values.
  • List items are indexed, starting from [0] index value.


  • Here the term  ordered refers that, it means the items have a defined order, and this order cannot be changed.
  • If  in case any new items are added to the list  that will be placed at the end of the list.


  • Here the term changeable indicates that the values in a list can be removed, added  or  changed after the creation of list.

Allow Duplicates

In a list  it allows us to  have the  repeated values


>> lst=[12, 34, 45, 67, 89,12]


Indexing in list

  • In list indexing is as in string i.e., left to right for reversal printing then indexing is done from right to left.
  • If you want to pick up the third value that is second indexed value then


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