Doubt regarding runtime.txt

could not understand the use of runtime.txt and also the use of vi before it. vi command is not working on windows what should i do?

Runtime.txt is just a simple file which contains the version of python which we used to develope our project. It is useful because it is possible that someone might be using python 2.0 whereas someone else might be using python 3 for running/developing the same project .
Vi is nothing special but just another text editor , you can use notepad or any other text editor instead of it .

Yes sir clear. thank you

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