class myClass:
      counter = 0
      def someFunction():
          #here is some codes
          string = "my string"
          globale counter
          for i in range(0, len(string))
              counter += 1
          return string

      def anotherFunction():
          return counter

class myClass:
      counter = 0
      def someFunction():
          #here is some codes
          string = "my string"
          for i in range(0, len(string))
              counter += 1
          return string, counter

      def anotherFunction():
          return someFunction()[1]

class myClass:
    def __init__(self):
          self.counter = 0
    def someFunction():
          #here is some codes
          string = "my string"
          for i in range(0, len(string))
              self.counter += 1
          return string

      def anotherFunction(self):
          return self.counter