[Pydev-code] Python versions to support (was: Re: Java 7 and Apache Commons)

[Jonah G. <jo...@ki...>]

Hi again!

I now have a follow-up, but this time on versions of Python to support.

In the work I am doing[1] updating the pydevconsole I was testing my
changes against older versions of Python. IPython currently requires Python
2.6+ or 3.2+ and this will be the minimum versions required for the new
features. During testing I tried using Python 2.1.3 (built from source on
Ubuntu 12.04 64-bit) and the console does not work[2].

My question therefore is: What is the minimum required versions of Python
(et al) that PyDev should support going forward?

I suppose this may be a question for PyDev 3+ and that PyDev should
continue to support the oldest possible version.

Thanks
Jonah

[1] I am doing further work on GUI event loops and deeper integration of
IPython
[2] xmlrpc was not part of 2.1, so pydev uses the local version, but this
is the error we get:
Error stream: Traceback (most recent call last):
  File
"/scratch/pydev/Pydev/plugins/org.python.pydev/pysrc/pydevconsole.py", line
21, in ?
    from pydev_imports import SimpleXMLRPCServer, Queue
  File
"/scratch/pydev/Pydev/plugins/org.python.pydev/pysrc/pydev_imports.py",
line 7, in ?
    import _pydev_xmlrpclib as xmlrpclib
  File
"/scratch/pydev/Pydev/plugins/org.python.pydev/pysrc/_pydev_xmlrpclib.py",
line 159, in ?
    _bool_is_builtin = False.__class__.__name__ == "bool"
AttributeError: 'int' object has no attribute '__class__'


On 23 August 2013 09:46, Jonah Graham <jo...@ki...> wrote:

> Hi Fabio,
>
> I like your conclusion, especially regarding PyDev 3 vs 2 for the
> breakage.
>
> As for apache commons code, for now that is fine. If I come up with a
> specific and strong enough need I will re-raise it. I was aware that you
> had spent considerable time writing good quality utility code and don't
> want to get rid of any of that. (Perhaps, when you find that elusive free
> time ;-), you can improve the apache commons join for everyone.
>
> (Out of curiosity, will there be a major feature set change to go along
> with the version change?)
>
> Thanks, and looking forward to PyDev 3.0!
> Jonah
>
>
> On 22 August 2013 18:13, Fabio Zadrozny <fa...@es...> wrote:
>
>> Hi Jonah,
>>
>> Ok, the poll (
>> http://pydev.blogspot.com.br/2013/08/pydev-poll-about-minimum-javaeclipse.html)
>> has been around for some time already, and it seems the major issue there
>> would be support for older versions of Mac OS, where java can't be
>> upgraded...
>>
>> Anyways, I think that given the feedback, going forward to support only
>> Java 7 and Eclipse 3.7 onwards is what we should look at...
>>
>> Still, I think that this breakage should be pretty visible, so, I'd like
>> to keep PyDev 2.x releases based on the current dependencies and go forward
>> to breaking the dependency in PyDev 3.
>>
>> The idea would be stabilizing and doing one more release on PyDev 2,
>> creating a branch to keep it going, doing one more bugfix-only release from
>> that branch and then creating PyDev 3 where we can start targeting Eclipse
>> 3.7 onwards and Java 7.
>>
>> Regarding the apache commons, I took a (rather quick) look at it and I
>> don't think they replace all that's used in the PyDev StringUtils... and in
>> some cases (i.e.: StringUtils.join), their implementation seems to be
>> considerably slower than the current PyDev implementation which was pretty
>> optimized, so, I'm a little wary about making that replacement...
>>
>> As for adding the apache commons, I'd like to know if you have specific
>> things you'd like to use (if it's just one or 2 utility classes, I'm not
>> sure it's worth the extra weight -- in that case, as their license allows,
>> it may be worth just copying those classes).
>>
>> Cheers,
>>
>> Fabio
>>
>> On Wed, Aug 7, 2013 at 9:18 PM, Fabio Zadrozny <fa...@es...>wrote:
>>
>>> Hi Jonah,
>>>
>>> I'll do the following: I'll create a blog entry to ask people what they
>>> think about... personally, I think going forward is nice, but I'd like to
>>> check with the current user base if that's an issue... (at a time I know
>>> Mac OS users had problems updating to more recent versions of Java, and
>>> Eclipse 3.2 was the version used by Aptana Studio 2, but I don't think it
>>> has to be supported anymore).
>>>
>>> So, I'll ask users to be able to give you feedback :)
>>>
>>> Cheers,
>>>
>>> Fabio
>>>
>>>
>>>
>>>
>>> On Wed, Aug 7, 2013 at 11:48 AM, Jonah Graham <jo...@ki...>wrote:
>>>
>>>> Hello,
>>>>
>>>> I know that PyDev officially supports Eclipse 3.2+[1]/Java 6+ (or
>>>> 5?)[2], however I would like to use some features of Java 7 (e.g.
>>>> java.nio stuff). In addition I would love to be able to use various
>>>> apache commons stuff (e.g. StringUtils[3]).
>>>>
>>>> What are the issues/(other?) with supporting older versions of
>>>> Eclipse/Java/etc?
>>>>
>>>> Thoughts/comments?
>>>> Thanks,
>>>> Jonah
>>>>
>>>> [1] There is a little bit of code with correct try/catch in
>>>> PydevPlugin for supporting Eclipse 4+ if it is available.
>>>> [2] On http://pydev.org/download.html it states Jave 6+ (Java 7
>>>> recommended), but on http://pydev.org/developers.html for developers
>>>> the request is still Java 5 API?
>>>> [3] If PyDev did become dependent on apache commons, then I could go
>>>> and remove the (then) redundant code in PyDev's StringUtils?
>>>>
>>>>
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>>>
>>>
>>
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