Python- Regex for dir of certain depth -

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I have a regex expression but it is not working for all cases.

I need this to match any low level case to two levels of depth:

If this word is in the "test_word" statement then it is true.

What I am using is not working 

  ('^ / [^ /] * / test_word..+')   
 or  
  ('^ / so I'm matching in statements with dirs like:  
  / user / test_word / test_word / test_word / Test_word /   
 But this example is wrong because it's beyond two levels. Do not want to be positive for anything beyond  
  / some / some / test_word /   
 and whatever you think can happen / P>  
 
 
 I think you want something like that,  
  ^ (?. *? / Test_word) (?!! *? //) \ / (?: [^ /] *) (?: / [^ /] *)? /? $

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