Chunk Chunk
The mission is in Reviewing Mode. You can't see the solutions Leader Board, but you can see other user solutions through the Random Review after you solve the mission.

You have a lot of work to do, so you might want to split it into smaller pieces. This way you'll know which piece you'll do on Monday, which will be for Tuesday and so on.

Split a list into smaller lists of the same size (chunks). The last chunk can be smaller than the default chunk-size. If the list is empty, then you shouldn't have any chunks at all.


Input: Two arguments. A List and chunk size.

Output: An Iterable with chunked Iterable.


chunking_by([5, 4, 7, 3, 4, 5, 4], 3) == [[5, 4, 7], [3, 4, 5], [4]]
chunking_by([3, 4, 5], 1) == [[3], [4], [5]]

Precondition: chunk-size > 0

CheckiO Extensions

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

checkio sync

(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
checkio install-plugin --ff
checkio install-plugin --chromium

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

<< <
> >>

Whats Next?

Free accounts will see Best CheckiO solutions with some delay.
Best Solutions will be opened in
Become Awesome and Don't wait
The next stage is ""
Will be activated in
View More Solutions Random Review Solutions Share your own solution
Go to the next mission Back to the list of missions Back to the map