Avoid problems when nis is not available on a system.

 






 

 


  Review Request #12865
  —
  Created March 3, 2023 and submitted  — Latest diff uploaded 

 


















 

  

   Information

  





 
 

  chipx86
 









 
 

  Review Board
 









 
 

  release-5.0.x
 









 
 

  
 









 
 

  
 






 




 

  

   Reviewers

  





 
 

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The NIS backend assumes that it can safely import the nis module.

However, this isn't always present on Python, and will be removed in

Python 3.13.


This change checks for this, attempting an import and logging if it

fails. The rest of the code will avoid trying to use the module if it's

not available, avoiding a crash.


This was hit in CI, where our Python 3.11 does not appear to ship with

NIS support.

 








  


 
 

  
Unit tests pass, with and without nis.

 







 









 





  








 




 







   

    
    

    

    


    

      
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