You need to count the number of digits in a given string.
Input: A Str.
Output: An Int.
count_digits('hi') == 0 count_digits('who is 1st here') == 1 count_digits('my numbers is 2') == 1 count_digits('This picture is an oil on canvas ' 'painting by Danish artist Anna ' 'Petersen between 1845 and 1910 year') == 8 count_digits('5 plus 6 is') == 2 count_digits('') == 0
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin --ff
checkio install-plugin --chromium