All Permutations

All Permutations


Given a string, return all possible permutations of its characters, sorted alphabetically.


Input: String (str).

Output: Iterable of strings (str).


assert list(string_permutations("ab")) == ["ab", "ba"]
assert list(string_permutations("abc")) == ["abc", "acb", "bac", "bca", "cab", "cba"]
assert list(string_permutations("a")) == ["a"]
assert list(string_permutations("abcd")) == [

How it’s used:

  • puzzles and games like Scrabble where word combinations matter;
  • cryptography to test possible keys given a set of characters;
  • data analysis in genetics for possible gene combinations.

Invalid hot key. Each hot key should be unique and valid
Hot keys:
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.

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