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Python – Average digits count in a List
• Last Updated : 11 Oct, 2020

Given a list of elements extract the average digit count in List.

Input : test_list = [34, 2345, 23, 456, 2, 23, 456787]
Output : 2.857142857142857
Explanation : Average of all digit count. [2+4+2+3+1+2+6 = 20, 20/7 = 2.857142857142857]

Input : test_list = [34, 1, 456]
Output : 2.0
Explanation : Average of all digit count. [1 + 2 + 3 = 6, 6 / 3 = 2]

Method #1 : Using len() + loop + str()

In this, we iterate each element, convert to string, and find its length, perform summation using counter, and then divide the result with the total element in the list to get results.

## Python3

 `# Python3 code to demonstrate working of ``# Average digits count``# Using len() + loop + str()`` ` `# initializing list``test_list ``=` `[``34``, ``2345``, ``23``, ``456``, ``2``, ``23``, ``456787``]`` ` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))`` ` `sumd ``=` `0``for` `ele ``in` `test_list:``     ` `    ``# summing digits length ``    ``sumd ``+``=` `len``(``str``(ele))`` ` `# getting result after dividing total digits by elements    ``res ``=` `sumd ``/` `len``(test_list)`` ` `# printing result ``print``(``"Average digits length : "` `+` `str``(res))`
Output
```The original list is : [34, 2345, 23, 456, 2, 23, 456787]
Average digits length : 2.857142857142857
```

Method #2 : Using len() + sum() + str()

In this, the task of getting a sum is done using sum(), extends a compact way to solve the problem.

## Python3

 `# Python3 code to demonstrate working of ``# Average digits count``# Using len() + sum() + str()`` ` `# initializing list``test_list ``=` `[``34``, ``2345``, ``23``, ``456``, ``2``, ``23``, ``456787``]`` ` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))`` ` `# getting summation and dividing by total length``res ``=` `sum``([``len``(``str``(ele)) ``for` `ele ``in` `test_list]) ``/` `len``(test_list)`` ` `# printing result ``print``(``"Average digits length "` `+` `str``(res))`
Output
```The original list is : [34, 2345, 23, 456, 2, 23, 456787]
Average digits length 2.857142857142857
```

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