Python List
- List in python is a sequential datatype.
- It is used to store n number of data items in sequential form.
- Each data item in the list has an index value.
- List works in the same way how array used to work in c++ or java.
- List is defined using square brackets [].
#Defining List in Python
a = [14, 22, 34, 49, "Codersdaily"]
print(a)
Properties of List:
- A list is a sequential data type which means each data item inside the list has a defined position or index value.
- The list is an ordered datatype.
- The list is mutable. You can update, insert, delete items inside a list.
- Each data item in the list holds two memory locations. Which makes the list slower than tuple and other data types.
- A list allows repetitions.
Methods in list
List in python has a lot of methods which include methods to append values, sort lists, insert data items. Which makes the list an easy-to-use datatype. Here are some of the popular methods which are extensively used in the list.
| Method | Definition | Code |
|---|---|---|
| append() | Append is used to add an element to the last index of the list |
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| clear() | Removes all the elements from the list |
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| copy() | Creates a copy of the list |
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| count() | Returns the number of elements with a specified value. |
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| index() | Returns the index value of a particular element. |
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| insert() | It is used to insert a value at a defined index inside the list. |
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| pop() | It is used to remove the last data item from the list. |
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| remove() | It is used to remove a particular item from a list. |
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| reverse() | It is used to reverse a list. |
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| sort() | It is used to sort a particular list. |
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