[GitHub] [bigtop] JiaLiangC commented on pull request #1163: BIGTOP-3983: Fix the Ranger-2.4 deploying issues

["JiaLiangC (via GitHub)" <gi...@apache.org>]

JiaLiangC commented on PR #1163:
URL: https://github.com/apache/bigtop/pull/1163#issuecomment-1734958498

   @guyuqi 
   
   I am doing an upgrade to Python3 for Ambari and its related components, and I have encountered this problem.
    
   Here, the issue is actually because all Python code for Ranger is executed in Python2. Therefore, if the Ranger db_setup.py script was previously run using Python2 in the system, it would not throw an error. 
   This is because `subprocess.Popen(command, stdout = subprocess.PIPE)` returns a str in Python2, but returns bytes in Python3.
   
   So, if you use a Python3 script to execute db_setup.py, modifying it to `(key, _, value) = line.decode('utf8').partition('=')` is good. However, there are many places where similar subprocess.Popen code exists, and all have encoding issues. 
   All Python scripts for Ranger are based on Python2, so upgrading them all would be a better approach.


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