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https://issues.apache.org/jira/browse/LUCENE-9230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17038594#comment-17038594
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Robert Muir commented on LUCENE-9230:
-------------------------------------
Attached is a patch that may be incomplete, but fixes my problem.
I also tested "ant regenerate" with lucene's core with {{ant regenerate}}, it
fails without the patch as well:
{noformat}
think:core[master]$ ant regenerate
Buildfile: /home/rmuir/workspace/lucene-solr/lucene/core/build.xml
check-moman:
download-moman:
createLevAutomata:
[exec] File "createLevAutomata.py", line 96
[exec] print 'Usage: python -u %s N <True/False> path_to_moman_dir' %
sys.argv[0]
[exec] ^
[exec] SyntaxError: Missing parentheses in call to 'print'. Did you mean
print('Usage: python -u %s N <True/False> path_to_moman_dir' % sys.argv[0])?
BUILD FAILED
/home/rmuir/workspace/lucene-solr/lucene/core/build.xml:112: The following
error occurred while executing this line:
/home/rmuir/workspace/lucene-solr/lucene/core/build.xml:72: exec returned: 1
Total time: 0 seconds
{noformat}
With the patch it works correctly. I think most scripts are using python3 and
this is just one of the stragglers.
> gradle moman fails on my machine, assumes python -> python2
> -----------------------------------------------------------
>
> Key: LUCENE-9230
> URL: https://issues.apache.org/jira/browse/LUCENE-9230
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Robert Muir
> Priority: Major
> Attachments: LUCENE-9230.patch
>
>
> python2 is EOL and many distros are transitioning {{python}} to really invoke
> python3. So the scripts fail on wrong syntax in such cases. This happens for
> me if i try {{gradle moman}}.
> I think as a first step, we should explicitly call {{python2}} for any
> python2 scripts, and {{python3}} for python3 scripts?
> cc [~mikemccand]
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