JiaLiangC opened a new pull request, #1263:
URL: https://github.com/apache/bigtop/pull/1263

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   ### Description of PR
   Set default python to python3 in bigtop deploy
   
   Since CentOS 7's yum depends on Python 2, it's necessary to replace the 
Python interpreter in yum with Python 2.7.
   
   Rocky 8 comes with /usr/libexec/no-python, so only an update-alternatives 
--set is needed.
   
   Starting from Red Hat 9, the python3-unversioned-command package is 
provided, thus only the installation of this package is required.
   
   ### How was this patch tested?
   manual test by running puppet script
    
   
![image](https://github.com/apache/bigtop/assets/18082602/4601240f-112f-4d02-b645-22002983fa14)
   
   ### For code changes:
   
   - [ ] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'BIGTOP-3638. Your PR title ...')?
   - [ ] Make sure that newly added files do not have any licensing issues. 
When in doubt refer to https://www.apache.org/licenses/


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