old_contents: import sys
  import itertools
  import inspect
  
  from collections import namedtuple
  
  _PY2 = sys.version_info.major == 2
  
  if _PY2:
  
      range_ = xrange
  
      zip_ = itertools.izip
  
      def iteritems(d):
          return d.iteritems()
  
      def itervalues(d):
          return d.itervalues()
  
      def iterkeys(d):
          return d.iterkeys()
  
      zip_longest = itertools.izip_longest
  
      def getargspec(f):
          return inspect.getargspec(f)
  
  else:
  
      range_ = range
  
      zip_ = zip
  
      def iteritems(d):
          return iter(d.items())
  
      def itervalues(d):
          return iter(d.values())
  
      def iterkeys(d):
          return iter(d.keys())
  
      zip_longest = itertools.zip_longest
  
      def getargspec(f):
          ArgSpec = namedtuple('ArgSpec', ('args', 'varargs', 'keywords', 'defaults'))
  
          # FullArgSpec(args, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, annotations)
          argspec = inspect.getfullargspec(f)
  
          return ArgSpec(argspec.args, argspec.varargs, argspec.varkw, argspec.defaults)
  
new_contents: import sys
  import itertools
  import inspect
  
  from collections import namedtuple
  
  _PY2 = sys.version_info.major == 2
  
  if _PY2:
  
      range_ = xrange
  
      zip_ = itertools.izip
  
      def iteritems(d):
          return d.iteritems()
  
      def itervalues(d):
          return d.itervalues()
  
      def iterkeys(d):
          return d.iterkeys()
  
      zip_longest = itertools.izip_longest
  
      def getargspec(f):
          return inspect.getargspec(f)
  
  else:
  
      range_ = range
  
      zip_ = zip
  
      def iteritems(d):
          return iter(d.items())
  
      def itervalues(d):
          return iter(d.values())
  
      def iterkeys(d):
          return iter(d.keys())
  
      zip_longest = itertools.zip_longest
  
      _ArgSpec = namedtuple('ArgSpec', ('args', 'varargs', 'keywords', 'defaults'))
  
      def getargspec(f):
          argspec = inspect.getfullargspec(f)
          # FullArgSpec(args, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, annotations)
  
          return _ArgSpec(argspec.args, argspec.varargs, argspec.varkw, argspec.defaults)
  
subject: Move namedtuple definition outside of argspec function