Between Markers (simplified)

Between Markers (simplified)


You are given a string and two markers (the initial one and final). You have to find a substring enclosed between these two markers. But there are a few important conditions.

  • The initial and final markers are always different.
  • The initial and final markers are always 1 char size.
  • The initial and final markers always exist in a string and go one after another.


Input: Three arguments. All of them are strings (str). The second and third arguments are the initial and final markers.

Output: A string (str).


assert between_markers("What is >apple<", ">", "<") == "apple"
assert between_markers("What is [apple]", "[", "]") == "apple"
assert between_markers("What is ><", ">", "<") == ""
assert between_markers("[an apple]", "[", "]") == "an apple"

How it is used: For text parsing.

Precondition: There can't be more than one final and one initial markers.

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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