is there any way to prevent side effects in python?

Question

Is there any way to prevent side effects in python? For example, the following function has a side effect, is there any keyword or any other way to have the python complain abou

Answer 1

Sorry really late to the party. You can use effect library to isolate side-effects in your python code. As others have said in Python you have to explicitly write functional style code but this library really encourages towards it.