List Functions in Python
Python has a number of built-in functions that can be used on lists that allow you to quickly look through a list without writing your own loops. The following are the functions on the list.
len max min sum split join
Video Tutorial
The len function returns the number of elements in the list. The min and max functions return the minimum and maximum elements of a list.
A simple program to demonstrate the list functions len, min, max
#Lists and functions such as len, min, max and sum
nums = [3, 41, 12, 9, 70, 15]
print("The lenth of the list is: ", len(nums))
print("Maximum Element is: ", max(nums))
print("Minimum Element is: ", min(nums))
print("Sum of Elements is: ", sum(nums))
print("The average of list is: ", sum(nums)/len(nums))
Output
The Lenth of the list is: 6
Maximum Element is: 70
Minimum Element is: 3
Sum of Elements is: 150
The average of list is: 25.0
split function in python
The split function in python is used to divide the string into a list of elements. By default, the delimiter for dividing the string into a list is “space”. If you want to specify any other delimiter, it should be passed as an argument to split function explicitly. The following program demonstrates the usage of the split method on the list in python.
s = 'welcome to CSE VTU BGM' t = s.split() print(t)
Output
[‘welcome’, ‘to’, ‘CSE’, ‘VTU’, ‘BGM’]
Another example with explicit delimiter ::
s = 'spam::spam::spam' delimiter = '::' t = s.split(delimiter) print (t)
Output
[‘spam’, ‘spam’, ‘spam’]
Another example with explicit delimiter ,
s = 'spam,spam,spam' delimiter = ',' t = s.split(delimiter) print (t)
Output
[‘spam’, ‘spam’, ‘spam’]
join function in python
The join function is used to join the list elements to form the string. The following program demonstrates the usage of the join method on the list in python.
t = ['Welcome', 'to', 'CSE', 'VTU', 'BGM'] delimiter = '::' s = delimiter.join(t) print (s)
Output
Welcome::to::CSE::VTU::BGM
Summary:
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