[jira] [Commented] (AVRO-1382) Support for python3

["Doug Cutting (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-1382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13863605#comment-13863605 ] 

Doug Cutting commented on AVRO-1382:
------------------------------------

Several files are modified with only whitespace changes.  This should be avoided.

The current patch fails for me with:
{code}
% python3 setup.py test
running test
running egg_info
writing avro.egg-info/PKG-INFO
writing top-level names to avro.egg-info/top_level.txt
writing dependency_links to avro.egg-info/dependency_links.txt
writing manifest file 'avro.egg-info/SOURCES.txt'
running build_ext
Traceback (most recent call last):
  File "setup.py", line 69, in <module>
    Main()
  File "setup.py", line 64, in Main
    url = 'http://hadoop.apache.org/avro',
  File "/usr/lib/python3.2/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib/python3.2/distutils/dist.py", line 917, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.2/distutils/dist.py", line 936, in run_command
    cmd_obj.run()
  File "/usr/lib/python3/dist-packages/setuptools/command/test.py", line 137, in run
    self.with_project_on_sys_path(self.run_tests)
  File "/usr/lib/python3/dist-packages/setuptools/command/test.py", line 117, in with_project_on_sys_path
    func()
  File "/usr/lib/python3/dist-packages/setuptools/command/test.py", line 146, in run_tests
    testLoader = loader_class()
  File "/usr/lib/python3.2/unittest/main.py", line 123, in __init__
    self.parseArgs(argv)
  File "/usr/lib/python3.2/unittest/main.py", line 191, in parseArgs
    self.createTests()
  File "/usr/lib/python3.2/unittest/main.py", line 198, in createTests
    self.module)
  File "/usr/lib/python3.2/unittest/loader.py", line 132, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib/python3.2/unittest/loader.py", line 132, in <listcomp>
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib/python3.2/unittest/loader.py", line 100, in loadTestsFromName
    parent, obj = obj, getattr(obj, part)
AttributeError: 'module' object has no attribute 'tests'
{code}
I installed python3 and python3-setuptools.  Is there something else I need?

> Support for python3
> -------------------
>
>                 Key: AVRO-1382
>                 URL: https://issues.apache.org/jira/browse/AVRO-1382
>             Project: Avro
>          Issue Type: Bug
>          Components: python
>    Affects Versions: 1.7.5
>            Reporter: Christophe Taton
>         Attachments: AVRO-1382.20131203-001922.diff, AVRO-1382.20140101-123233-0800.diff
>
>
> Hi,
> I'd need to use Avro from Python3, which would require essentially the following changes, which I am happy to contribute:
>  - rewrite except statements according to new syntax
>  - rewrite print statements according to new syntax
>  - basestring becomes str
>  - update some imports (StringIO becomes io.StringIO, httplib becomes http.client)
> This would apparently require branching the python code to maintain a version for python2 and a separate version for python3.
> Any thoughts on how to approach this?
> Thanks!



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