code: def old_div(a, b):
      
      if isinstance(a, numbers.Integral) and isinstance(b, numbers.Integral):
          return a // b
      else:
          return a / b
docs: DEPRECATED: import ``old_div`` from ``past.utils`` instead.
  
      Equivalent to ``a / b`` on Python 2 without ``from __future__ import
      division``.
  
      TODO: generalize this to other objects (like arrays etc.)