List Methods

Just like strings, you can check for methods for lists as well using dir and help. Some important methods are like append, extend and sort.

Understand the code and make use of notebook to figure out the results,

a = [23,12,32,1,2,34,56]
a.append(12)
print(a[len(a)-2])

Enter the number printed

a.extend(a)

Enter the sum of all elements within a

a.sort()
print(a[2] + a[7])

Enter the number printed

Some other functions are,

sum() only works when the list elements are numbers to calculate the sum of all elements
other functions (max(), len(), etc.) work with lists of strings and other types that can be comparable.

See Answer

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