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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_platform():
 	"""Detect and instantiate an instance of the underlying platform"""

	# Detect
	platform_str = platform.system()
	print 'Platform detected: {}'.format(platform_str)
	# Instantiate
	if platform_str == 'Windows':
		return WindowsPlatform()
	elif platform_str == 'Linux':
		return LinuxPlatform()
	else:
		raise NotImplementedError('This platform is not yet supported')