Python List:
List is a collection of multiple items, separated by commas inside a square bracket. It is used to store collection of datas. There are 4 built in data types to store data, they are list, tuples, set and dictionaries.
Creating List:
We can create a list of integers, strings or list of mixed data types.
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| Creating List in Python |
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| Creating empty and nested list in python |
Accessing the items from the list:
Indexing in python starts from 0. By using the index operator [ ], the items from the list can be accessed. We can access by using positive index values and also negative index values.
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| Accessing items from the list |
Accessing the items from the multi-dimensional list:
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| Accessing the items from multidimensional list |
Slicing the list in Python:
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| Slicing the list in python |
Adding and changing the elements in list:
Elements can be changed in the list by using the particular index value and replacing it.
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| Adding elements in the list. |
We can add elements to the list by ‘.append’
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| Adding elements in the list using append method in python |
Concatenating lists:
We can join lists by using just ‘+’ operator.
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| Concatenating lists in python |
Inserting elements in the list:
Elements can be inserted in the list by using insert ( ) method by specifying the location. First is the index position and the next is the element to be inserted.
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| Inserting an element in the list in python |
Deleting elements in the list:
Using ‘del’ one or more elements can be deleted by specifying the index number.
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| Deleting the elements from the list in python |
Inbuilt Python List Methods:
append( )= Adds elements in the end of the list
insert( )= Inserts an elements in the specified index location
count( )= Counts the number of elements in the list
remove( )= Removes elements from the list
sort( )= Sorting the elements in the ascending order in the list
reverse( )= Reversing the order of the items in the list
copy( ) = Returns the copy of the list
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