code: def get_abbr_impl():
      
      impl = platform.python_implementation()
      if impl == 'PyPy':
          return 'pp'
      elif impl == 'Jython':
          return 'jy'
      elif impl == 'IronPython':
          return 'ip'
      elif impl == 'CPython':
          return 'cp'
  
      raise LookupError('Unknown Python implementation: ' + impl)
docs: Return abbreviated implementation name.