OO in Python is mostly pointless(leontrolski.github.io)

  The venerable master Qc Na was walking with his student, Anton.  Hoping to

  Chastised, Anton took his leave from his master and returned to his cell,

  On his next walk with Qc Na, Anton attempted to impress his master by

    url_layout.format()
    resp.raise_for_status()
    resp.json()
    session.add()

    class Global:
      i=42

    Global.i+=13

  # [0] is the root_url
  # [1] is the url_layout for formatting it: must contain {entity}.

  client_a = [ "https://client-a", "{root_url}/{entity}" ]

  def construct_url(client: Client, entity: str) -> str:
      return client.url_layout.format(root_url=client.root_url,  entity=entity)

  class ApiClient:
    def __init__(self, root_url: str, session_cls: sessionmaker, layout: str):
        self.root_url = root_url
        self.session_cls = session_cls
        self.layout = layout

    def construct_url(self, entity: str) -> str:
        return self.layout.format(root_url=self.root_url,  entity=entity)

    def get_items(self, entity: str) -> List[Item]:
        resp = requests.get(self.construct_url(entity))
        resp.raise_for_status()
        return [Item(**n) for n in resp.json()["items"]]

    def save_items(self, entity: str) -> None:
        with scoped_session(self.session_cls) as session:
            session.add(self.get_items(entity))

  client_a = ApiClient("https://client-a", session_cls,
                       "{root_url}/{entity}")
  client_b = ApiClient("https://client-a", session_cls, "{root_url}/a/special/place/{entity}")

  client_a.save_items("bars")

  class ApiClient:
    def __init__(self, root_url: str, layout: str):
        self.root_url = root_url
        self.layout = layout

    def construct_url(self, entity: str) -> str:
        return self.layout.format(root_url=self.root_url,  entity=entity)

    def get_items(self, entity: str) -> List[Item]:
        resp = requests.get(self.construct_url(entity))
        resp.raise_for_status()
        return [Item(**n) for n in resp.json()["items"]]

    def save_items(self, session_cls: sessionmaker, entity: str) -> None:
        with scoped_session(self.session_cls) as session:
            session.add(self.get_items(entity))

  client_a = ApiClient("https://client-a",
                       "{root_url}/{entity}")
  client_b = ApiClient("https://client-a",
                        "{root_url}/a/special/place/{entity}")

  client_a.save_items(session_cls, "bars")

  class ClientA(ApiClient):
      def construct_url(self, entity: str) -> str:
          return f"{self.root_url}/{entity}"

    def construct_url(self, entity: str) -> str:
        return self.layout.format(root_url=self.root_url,  entity=entity)

    class SomeClass
       def someMethod(self: SomeClass, someVar: int) -> int:
           return self.x + somVar

           def someMethod(self: SomeClass, someVar: int) -> int:
               return self.x + somVar

   class SomeClass {
       int someMethod(int someVar) {
             return this.x + someVar;
       }
   } 

       int someMethod(int someVar) {
           return this.x + someVar;
       }

     def someMethod(x: int, someVar: int) -> int:
         return x + someVar