gistfile1.py

""" adapters.py """
class PinAdapter:
  def __init__(self, *args):
    if(os.uname()[4][:3] != 'arm'):
      return MockPin(*args)
    else:
      from ablib import Pin
      return Pin(*args)

class MockPin:
  def __init__(self, *args):
    # some fake init
    pass
  
  def on(self):
    pass
  
  def off(self):
    pass

""" scanner.py """
from adapters import PinAdapter

pin = PinAdapter('W', '14', 'hight')
pin.on()
pin.off()