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Accessing an item in a listAdding items to a listChecking if a list is emptyChecking whether a value is in a listConcatenating two listsCopying a list in PythonDifference between append and extend methodsDifference between sort and sortedFinding the index of an element in a listFinding the length of a listIterating from index oneLooping through listsModifying listsPrinting a list in reverse orderRemoving items from a listSorting a listUsing enumerate and zip at the same time
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Accessing an item in a list in Python
schedule Aug 11, 2023
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We can access an item in a list in Python using index notation. If we only know the value of the item in a list, we can use the index(~) method to locate its corresponding index position.
Examples
Access an element using index notation
Consider the following list:
letters = ['a', 'b', 'c']
We can print the second item in the list by:
print(letters[1])
b
Note that in Python, indexing starts at 0 and not 1. Therefore the first item in the letters list would be accessed by letters[0].
Locating index position
To locate the index position of element 'c':
letters.index('c')
2
Now we can retrieve 'c' from the list without initially knowing its index position:
letters[letters.index('c')]
'c'
Published by Arthur Yanagisawa
Edited by 0 others
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