Indentation is semantic has in it carry a meaning. We are not talking about how a specific language use it. As for Python, it doesn't use space. It can use bot

Indentation is semantic has in it carry a meaning. We are not talking about how a specific language use it. As for Python, it doesn't use space. It can use both spaces and tabs (but not mixed within the same file). It's just that PEP-8 require spaces, but not every project/library follow PEP-8.