TisonKun opened a new pull request #1303: ZOOKEEPER-3782: Replace filter() with 
list comprehension for returning list
URL: https://github.com/apache/zookeeper/pull/1303
 
 
   After Py3, `filter` return a `filter object` instead of `list object`, which 
causes
   
   ```
   Traceback (most recent call last):
     File "zk-merge-pr.py", line 533, in <module>
       main()
     File "zk-merge-pr.py", line 519, in main
       resolve_jira_issues(commit_title, merged_refs, jira_comment)
     File "zk-merge-pr.py", line 329, in resolve_jira_issues
       resolve_jira_issue(merge_branches, comment, jira_id)
     File "zk-merge-pr.py", line 312, in resolve_jira_issue
       jira_fix_versions = [get_version_json(v) for v in fix_versions]
     File "zk-merge-pr.py", line 312, in <listcomp>
       jira_fix_versions = [get_version_json(v) for v in fix_versions]
     File "zk-merge-pr.py", line 310, in get_version_json
       return filter(lambda v: v.name == version_str, versions)[0].raw
   TypeError: 'filter' object is not subscriptable
   ```
   
   We can replace filter with list comprehension to fix it.

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