python/testData/inspections/PyUnboundLocalVariableInspection/UnboundSwapStrUnicode.py - platform/tools/idea - Git at Google

 def f():
     bytes, str = <warning descr="Local variable 'str' might be referenced before assignment">str</warning>, unicode #fail

 class C(object):
     bytes, str = str, unicode #pass

 bytes, str = str, unicode #pass
	def f():
	bytes, str = <warning descr="Local variable 'str' might be referenced before assignment">str</warning>, unicode #fail

	class C(object):
	bytes, str = str, unicode #pass

	bytes, str = str, unicode #pass