Counting instances of a class?

Question

I\'ve been cleaning up some code from a module I\'m extending and I can\'t seem to find a way to Pythonify this code:

global_next_id = 1

class Obj:
  def __         


        

Answer 1

class InstanceCounter(object):
  # the instance counter
  counter = 0

  def __init__(self, val):
    self.val = all
    # incrementing every time an instance is created
    InstanceCounter.counter += 1

  def set_val(self, val):
    self.val = val

  def get_val(self, val):
    return self.val

  # accessing the instance counter should be done through a class method

  @classmethod
  def get_counter(cls):  
    return cls.counter

# See the instance counter as it increments as new instances are created
a=InstanceCounter(5)
print(a.get_counter())
b=InstanceCounter(7)
print(a.get_counter(), b.get_counter())
c=InstanceCounter(9)
print(a.get_counter(), b.get_counter(), c.get_counter())