624 def find_cycles(imports):

   624 def find_cycles(imports):

   625     """Find cycles in an already-loaded import graph.

   625     """Find cycles in an already-loaded import graph.

   626 

   626 

   627     All module names recorded in `imports` should be absolute one.

   627     All module names recorded in `imports` should be absolute one.

   628 

   628 

   630     >>> imports = {'top.foo': ['top.bar', 'os.path', 'top.qux'],

   629     >>> imports = {'top.foo': ['top.bar', 'os.path', 'top.qux'],

   631     ...            'top.bar': ['top.baz', 'sys'],

   630     ...            'top.bar': ['top.baz', 'sys'],

   632     ...            'top.baz': ['top.foo'],

   631     ...            'top.baz': ['top.foo'],

   633     ...            'top.qux': ['top.foo']}

   632     ...            'top.qux': ['top.foo']}

   634     >>> print('\\n'.join(sorted(find_cycles(imports))))

   633     >>> print('\\n'.join(sorted(find_cycles(imports))))