Capital City
You are an active traveler who have visited a lot of countries. The main city in the every country is its capital and each country can have only one capital city.
So your task is to create the class Capital which has some special properties: the first created instance of this class will be unique and single, and all of the other instances should be the same as the very first one.
Also you should add the name() method which returns the name of the capital.
In this mission you should use the Singleton design pattern.
Example:
ukraine_capital_1 = Capital("Kyiv")
ukraine_capital_2 = Capital("London")
ukraine_capital_3 = Capital("Marocco")
assert ukraine_capital_2.name() == "Kyiv"
assert ukraine_capital_3.name() == "Kyiv"
Input: The class Capital.
Output: The name of the capital.
How it is used: For creation of a unique object as a single instance.
Precondition: All data is correct.
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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