jython-users — Discussion of and questions about using Jython

[Jython-users] PyDev 5.9.2 released

[Fabio Z. <fa...@gm...>]

PyDev 5.9.2 Release Highlights

   -

   *Important* PyDev now requires Java 8 and Eclipse 4.6 (Neon) onwards.
   - PyDev 5.2.0 is the last release supporting Eclipse 4.5 (Mars).
   -

   *Debugger*
   - Integrated speedups for Python 3.6 which use the new Python hook which
      allows the debugger to add breakpoints through bytecode manipulation.
      - Some critical fixes related to issues in the latest debugger
      (#PyDev-837, #PyDev-838, #PyDev-817).
   -

   Added support for having isort as the engine for import sorting.
   - Fixed issue on text search with *Lucene* when the user had another
   plugin which also used lucene (*#PyDev-826*).
   - From this version onwards, PyDev is built with a proper certificate
   (previous versions used a self-signed certificate).
   - Google App Engine templates now working out of the box (patch by *Mat
   Booth*).
   - Optimization in editor highlighting when dealing with huge files.
   - Some bugfixes in pytest integration.
   - *cv2* added to forced builtins by default for working with OpenCV.
   - Fixed issue when parsing empty f-string.

What is PyDev?

PyDev is an open-source Python IDE on top of Eclipse for Python, Jython and
IronPython development.

It comes with goodies such as code completion, syntax highlighting, syntax
analysis, code analysis, refactor, debug, interactive console, etc.

Details on PyDev: http://pydev.org
Details on its development: http://pydev.blogspot.com
What is LiClipse?

LiClipse is a PyDev standalone with goodies such as support for Multiple
cursors, theming, TextMate bundles and a number of other languages such as
Django Templates, Jinja2, Kivy Language, Mako Templates, Html, Javascript,
etc.

It's also a commercial counterpart which helps supporting the development
of PyDev.

Details on LiClipse: http://www.liclipse.com/

Cheers,

--
Fabio Zadrozny
------------------------------

Software Developer

LiClipse
http://www.liclipse.com

PyDev - Python Development Environment for Eclipse
http://pydev.org
http://pydev.blogspot.com

PyVmMonitor - Python Profiler
http://www.pyvmmonitor.com/

Re: [Jython-users] Version of python libraries inside Jython distribution

[Krzysiek P. <krz...@gm...>]

Hmmm - ok.

Thanks!
Krzysztof

2017-08-08 20:31 GMT+02:00 Jeff Allen <ja...@fa...>:

> There's no simple answer to that, I'm afraid. The libraries are not
> identical to those in any particular version of CPython. We have to modify
> some of them extensively.
>
> And it's a mixture that we use. The last time we imported the stdlib en
> masse was 2013 (2.7.4-ish). But we have made many selective additions from
> 2.7.11 and 2.7.13 (at least) since then.
>
> Jeff Allen
>
>
>
> On 08/08/2017 09:25, Krzysiek Płachno wrote:
>
>> Hey!
>>
>> In Jython jar package there's Lib folder with many python libraries -
>> *.py. Is it somewhere documented which versions of those libraries are
>> there? (There's no way to check it basing on file itself)
>>
>> Thanks in advance :)
>> Best,
>> Krzysztof
>>
>>
>> ------------------------------------------------------------
>> ------------------
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>
>>
>> _______________________________________________
>> Jython-users mailing list
>> Jyt...@li...
>> https://lists.sourceforge.net/lists/listinfo/jython-users
>>
>
>

Re: [Jython-users] Version of python libraries inside Jython distribution

[Jeff A. <ja...@fa...>]

There's no simple answer to that, I'm afraid. The libraries are not 
identical to those in any particular version of CPython. We have to 
modify some of them extensively.

And it's a mixture that we use. The last time we imported the stdlib en 
masse was 2013 (2.7.4-ish). But we have made many selective additions 
from 2.7.11 and 2.7.13 (at least) since then.

Jeff Allen


On 08/08/2017 09:25, Krzysiek Płachno wrote:
> Hey!
>
> In Jython jar package there's Lib folder with many python libraries - 
> *.py. Is it somewhere documented which versions of those libraries are 
> there? (There's no way to check it basing on file itself)
>
> Thanks in advance :)
> Best,
> Krzysztof
>
>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>
>
> _______________________________________________
> Jython-users mailing list
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users

[Jython-users] Version of python libraries inside Jython distribution

[Krzysiek P. <krz...@gm...>]

Hey!

In Jython jar package there's Lib folder with many python libraries - *.py.
Is it somewhere documented which versions of those libraries are there?
(There's no way to check it basing on file itself)

Thanks in advance :)
Best,
Krzysztof

Re: [Jython-users] jython,JyNI and numpy

[Stefan R. <Ste...@gm...>]

Lana, which NumPy version are you using? Only NumPy 1.12 or later are supported. Also note that Numpy support is not yet exhaustive. Many aspects don't work yet.

-Stefan 

> Gesendet: Freitag, 28. Juli 2017 um 16:27 Uhr
> Von: "Lana Abadie" <lan...@gm...>
> An: Jyt...@li...
> Betreff: [Jython-users] jython,JyNI and numpy
>
> Dear all
> I'm new to Jython. I read that now one shall be able to import numpy from
> Jython using JyNI.
> However in my case, the import failed as follows
> File "/usr/lib64/python2.6/site-packages/numpy/__init__.py", line 153, in
> <module>
>     from . import add_newdocs
>   File "/usr/lib64/python2.6/site-packages/numpy/add_newdocs.py", line 13,
> in <module>
>     from numpy.lib import add_newdoc
>   File "/usr/lib64/python2.6/site-packages/numpy/lib/__init__.py", line 8,
> in <module>
>     from .type_check import *
> ImportError: No module named type_check
> 
> 
> I'm using the eclipse plugin of jython (2-7) and the latest version of
> JyNI. I'm running it from linux RHEL 6.5
> thanks for your help
> Lana
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot_______________________________________________
> Jython-users mailing list
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users
>

[Jython-users] jython,JyNI and numpy

[Lana A. <lan...@gm...>]

Dear all
I'm new to Jython. I read that now one shall be able to import numpy from
Jython using JyNI.
However in my case, the import failed as follows
File "/usr/lib64/python2.6/site-packages/numpy/__init__.py", line 153, in
<module>
    from . import add_newdocs
  File "/usr/lib64/python2.6/site-packages/numpy/add_newdocs.py", line 13,
in <module>
    from numpy.lib import add_newdoc
  File "/usr/lib64/python2.6/site-packages/numpy/lib/__init__.py", line 8,
in <module>
    from .type_check import *
ImportError: No module named type_check


I'm using the eclipse plugin of jython (2-7) and the latest version of
JyNI. I'm running it from linux RHEL 6.5
thanks for your help
Lana

[Jython-users] [FYI] Pypi Connector importing packages to Jython on XWiki platform - released

[Krzysiek P. <krz...@gm...>]

Hey!

Thanks again for you help and answers to my questions.
I've just released the extension for XWiki that I was working for.

XWiki has possibility to scirpt on its pages in Python. Under the hood it's
Java Scripting API and Jython that takes care of running this script and
returning result to page. Jython has implementation only for standard
libraries. That's why I created Extension Repository Connector - Pypi - to
be able to import to XWiki other (non-standard) python packages that are
hosted on pypi: https://pypi.python.org/pypi. All this on running XWiki
instance (without need to restart) - downloaded packages are simply made
available for Java classloader.

More about extension:
http://extensions.xwiki.org/xwiki/bin/view/Extension/Extension%20Repository%20Connector%20-%20Pypi/
about XWiki:
http://www.xwiki.org/


Best,
Krzysztof

Re: [Jython-users] Python packages using C libraries on Jython

[Krzysiek P. <krz...@gm...>]

Thanks!

2017-07-25 23:06 GMT+02:00 <jem...@fr...>:

> See http://jyni.org/
>
> On Tue, 25 Jul 2017 19:43:17 +0200, Krzysiek Płachno
> <krz...@gm...> wrote:
> > Hey!
> > Thanks for previous answers to my question!
> > I have another one. I found out that if a python package uses C
> libraries
> > it cannot be used by Jython
> (https://stackoverflow.com/a/13684001/4703098
> > [1]). There are plenty of such libraries - such as e.g. numpy. So there
> > wont work by default. But does Jython implement and contain some common
> c
> > libraries to make such common cPython packages working? Or is there any
> > other workaround?
> > Best,Krzysztof
> >
> >
> > Links:
> > ------
> > [1] https://stackoverflow.com/a/13684001/4703098
>

Re: [Jython-users] Python packages using C libraries on Jython

[<jem...@fr...>]

See http://jyni.org/

On Tue, 25 Jul 2017 19:43:17 +0200, Krzysiek Płachno
<krz...@gm...> wrote:
> Hey!
> Thanks for previous answers to my question! 
> I have another one. I found out that if a python package uses C
libraries
> it cannot be used by Jython
(https://stackoverflow.com/a/13684001/4703098
> [1]). There are plenty of such libraries - such as e.g. numpy. So there
> wont work by default. But does Jython implement and contain some common
c
> libraries to make such common cPython packages working? Or is there any
> other workaround?
> Best,Krzysztof
> 
> 
> Links:
> ------
> [1] https://stackoverflow.com/a/13684001/4703098

[Jython-users] Python packages using C libraries on Jython

[Krzysiek P. <krz...@gm...>]

Hey!

Thanks for previous answers to my question!

I have another one. I found out that if a python package uses C libraries
it cannot be used by Jython (https://stackoverflow.com/a/13684001/4703098).
There are plenty of such libraries - such as e.g. numpy. So there won't
work by default. But does Jython implement and contain some common c
libraries to make such common cPython packages working? Or is there any
other workaround?

Best,
Krzysztof

Re: [Jython-users] Installing python packages in Jython

[Jim B. <jim...@py...>]

Jython 2.7.1 is the implementation of Python 2.7, so that's what you should
be using.

On Thu, Jul 20, 2017 at 9:08 AM, Krzysiek Płachno <krz...@gm...
> wrote:

> But which version of python packages if indented to use with Jython 2.7.1?
> Is it Python 2.7?
> Any others are possible?
>
> Best,
> Krzysztof
>
> 2017-07-20 16:36 GMT+02:00 Jim Baker <jim...@py...>:
>
>> Eggs and wheels are both pure Python package formats and work well on
>> Jython 2.7. In particular, the distribution of Jython 2.7.1 uses the
>> standard wheels for both pip and setuptools from upstream PyPA development.
>>
>> But if I had to pick, I would go for the wheel format.
>>
>> On Thu, Jul 20, 2017 at 2:37 AM, Krzysiek Płachno <
>> krz...@gm...> wrote:
>>
>>> To clarify the case: what I have already done is successful import of
>>> python library via Jython. Now question that I have is which version of
>>> python library will be the safest to use with Jython 2.7.1.
>>>
>>> Best,
>>> Krzysztof
>>>
>>> 2017-07-19 23:27 GMT+02:00 Krzysiek Płachno <krz...@gm...>:
>>>
>>>> Hello!
>>>>
>>>> I'm contributing to XWiki open source project http://www.xwiki.org/.
>>>> XWiki platform apart from many wonderful features allows for scripting in
>>>> python on its pages. Under the hood it's Jython execute the python script.
>>>>
>>>> My current task is to enable installing packages form PyPi repository
>>>> (making them available for Java classloader in XWiki instance) so that they
>>>> can be imported by Jython in any python script.
>>>> The doubt that I have is what the version of package should be for
>>>> given version of Jython.
>>>>
>>>> 1) The version of Jython that we use is 2.7.1. Then, should the python
>>>> packages be compatible with python 2.7?
>>>> 2) Is there any documentation page where I could get to know more on
>>>> this topic?
>>>> 3) Does it make any difference if package is in .egg or .whl format?
>>>>
>>>> Thanks in advance for help!
>>>> Best,
>>>> Krzysztof Płachno
>>>>
>>>
>>>
>>> ------------------------------------------------------------
>>> ------------------
>>> Check out the vibrant tech community on one of the world's most
>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>> _______________________________________________
>>> Jython-users mailing list
>>> Jyt...@li...
>>> https://lists.sourceforge.net/lists/listinfo/jython-users
>>>
>>>
>>
>

Re: [Jython-users] Installing python packages in Jython

[Krzysiek P. <krz...@gm...>]

But which version of python packages if indented to use with Jython 2.7.1?
Is it Python 2.7?
Any others are possible?

Best,
Krzysztof

2017-07-20 16:36 GMT+02:00 Jim Baker <jim...@py...>:

> Eggs and wheels are both pure Python package formats and work well on
> Jython 2.7. In particular, the distribution of Jython 2.7.1 uses the
> standard wheels for both pip and setuptools from upstream PyPA development.
>
> But if I had to pick, I would go for the wheel format.
>
> On Thu, Jul 20, 2017 at 2:37 AM, Krzysiek Płachno <
> krz...@gm...> wrote:
>
>> To clarify the case: what I have already done is successful import of
>> python library via Jython. Now question that I have is which version of
>> python library will be the safest to use with Jython 2.7.1.
>>
>> Best,
>> Krzysztof
>>
>> 2017-07-19 23:27 GMT+02:00 Krzysiek Płachno <krz...@gm...>:
>>
>>> Hello!
>>>
>>> I'm contributing to XWiki open source project http://www.xwiki.org/.
>>> XWiki platform apart from many wonderful features allows for scripting in
>>> python on its pages. Under the hood it's Jython execute the python script.
>>>
>>> My current task is to enable installing packages form PyPi repository
>>> (making them available for Java classloader in XWiki instance) so that they
>>> can be imported by Jython in any python script.
>>> The doubt that I have is what the version of package should be for given
>>> version of Jython.
>>>
>>> 1) The version of Jython that we use is 2.7.1. Then, should the python
>>> packages be compatible with python 2.7?
>>> 2) Is there any documentation page where I could get to know more on
>>> this topic?
>>> 3) Does it make any difference if package is in .egg or .whl format?
>>>
>>> Thanks in advance for help!
>>> Best,
>>> Krzysztof Płachno
>>>
>>
>>
>> ------------------------------------------------------------
>> ------------------
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> _______________________________________________
>> Jython-users mailing list
>> Jyt...@li...
>> https://lists.sourceforge.net/lists/listinfo/jython-users
>>
>>
>

Re: [Jython-users] Installing python packages in Jython

[Jim B. <jim...@py...>]

Eggs and wheels are both pure Python package formats and work well on
Jython 2.7. In particular, the distribution of Jython 2.7.1 uses the
standard wheels for both pip and setuptools from upstream PyPA development.

But if I had to pick, I would go for the wheel format.

On Thu, Jul 20, 2017 at 2:37 AM, Krzysiek Płachno <krz...@gm...
> wrote:

> To clarify the case: what I have already done is successful import of
> python library via Jython. Now question that I have is which version of
> python library will be the safest to use with Jython 2.7.1.
>
> Best,
> Krzysztof
>
> 2017-07-19 23:27 GMT+02:00 Krzysiek Płachno <krz...@gm...>:
>
>> Hello!
>>
>> I'm contributing to XWiki open source project http://www.xwiki.org/.
>> XWiki platform apart from many wonderful features allows for scripting in
>> python on its pages. Under the hood it's Jython execute the python script.
>>
>> My current task is to enable installing packages form PyPi repository
>> (making them available for Java classloader in XWiki instance) so that they
>> can be imported by Jython in any python script.
>> The doubt that I have is what the version of package should be for given
>> version of Jython.
>>
>> 1) The version of Jython that we use is 2.7.1. Then, should the python
>> packages be compatible with python 2.7?
>> 2) Is there any documentation page where I could get to know more on this
>> topic?
>> 3) Does it make any difference if package is in .egg or .whl format?
>>
>> Thanks in advance for help!
>> Best,
>> Krzysztof Płachno
>>
>
>
> ------------------------------------------------------------
> ------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Jython-users mailing list
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users
>
>

Re: [Jython-users] Installing python packages in Jython

[Krzysiek P. <krz...@gm...>]

To clarify the case: what I have already done is successful import of
python library via Jython. Now question that I have is which version of
python library will be the safest to use with Jython 2.7.1.

Best,
Krzysztof

2017-07-19 23:27 GMT+02:00 Krzysiek Płachno <krz...@gm...>:

> Hello!
>
> I'm contributing to XWiki open source project http://www.xwiki.org/.
> XWiki platform apart from many wonderful features allows for scripting in
> python on its pages. Under the hood it's Jython execute the python script.
>
> My current task is to enable installing packages form PyPi repository
> (making them available for Java classloader in XWiki instance) so that they
> can be imported by Jython in any python script.
> The doubt that I have is what the version of package should be for given
> version of Jython.
>
> 1) The version of Jython that we use is 2.7.1. Then, should the python
> packages be compatible with python 2.7?
> 2) Is there any documentation page where I could get to know more on this
> topic?
> 3) Does it make any difference if package is in .egg or .whl format?
>
> Thanks in advance for help!
> Best,
> Krzysztof Płachno
>

[Jython-users] Installing python packages in Jython

[Krzysiek P. <krz...@gm...>]

Hello!

I'm contributing to XWiki open source project http://www.xwiki.org/. XWiki
platform apart from many wonderful features allows for scripting in python
on its pages. Under the hood it's Jython execute the python script.

My current task is to enable installing packages form PyPi repository
(making them available for Java classloader in XWiki instance) so that they
can be imported by Jython in any python script.
The doubt that I have is what the version of package should be for given
version of Jython.

1) The version of Jython that we use is 2.7.1. Then, should the python
packages be compatible with python 2.7?
2) Is there any documentation page where I could get to know more on this
topic?
3) Does it make any difference if package is in .egg or .whl format?

Thanks in advance for help!
Best,
Krzysztof Płachno

Re: [Jython-users] 2.7.1 significantly slower than 2.7.0

[Randall W. <ran...@al...>]

This is http://bugs.jython.org/issue2604 <http://bugs.jython.org/issue2604>

Randall Wood

> On Jul 4, 2017, at 09:24, Stefan Richthofer <Ste...@gm...> wrote:
> 
> For me this sounds like an actual bug rather than a normal speed regression.
> 120times slower means there must be something really wrong.
> Plese file a bug about this at bugs.jython.org so we can keep track.
> Add all code and information that is needed for reproducing.
>  
> > what do you need me to also test to include in a bug report
> Please make reprodrucing as easy as possible.
> Provide platform info and Java version and the command/method you use
> for launching Jython (IDE, java -jar, jython launcher, etc).
> Are you using jython-standalone or did you install it with the installer, etc?
> Further stuff on request/discussion.
> If you want, you can try to use the profiler hook to find the bottleneck.
>  
> Best
>  
> -Stefan
>  
> Gesendet: Dienstag, 04. Juli 2017 um 11:32 Uhr
> Von: "Randall Wood" <ran...@al...>
> An: jyt...@li...
> Betreff: [Jython-users] 2.7.1 significantly slower than 2.7.0
> I have a process that uses Jython to check that files are being checked into a SCM using the correct line ends (its a Java test that uses Jython, embedded using JSR 223, to run 29057 tests. Each test is the following Jython script (written on the fly in Java where PATH is the file to check and changes every time):
>  
> import os
> failing = False
> if "\r\n" in open(os.path.normpath(PATH), "rb").read():
>     failing = True
>  
> This has the following runtimes (in seconds) on the same computer with no other changes than Jython version:
>  
> Jython 2.7.0: 89.442 (~1.5 minutes)
> Jython 2.7.1: 10,788.489 (~3 hours or ~120 times as long as 2.7.0)
>  
> What could be causing this discrepancy (is there something I can do), and what do you need me to also test to include in a bug report?
>  
> Randall Wood
> JMRI Developer - http://jmri.org <http://jmri.org/>
> Alexandria Software - http://alexandriasoftware.com <http://alexandriasoftware.com/>
> Northern Virginia NTRAK - http://nvntrak.org <http://nvntrak.org/>
>  
> 
>  
> 
> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot_______________________________________________ <http://sdm.link/slashdot_______________________________________________> Jython-users mailing list Jyt...@li... https://lists.sourceforge.net/lists/listinfo/jython-users <https://lists.sourceforge.net/lists/listinfo/jython-users>

Re: [Jython-users] 2.7.1 significantly slower than 2.7.0

[Stefan R. <Ste...@gm...>]

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>
<div>For me this sounds like an actual bug rather than a normal speed regression.</div>

<div>120times slower means there must be something really wrong.</div>

<div>Plese file a bug about this at bugs.jython.org so we can keep track.</div>

<div>Add all code and information that is needed for reproducing.</div>

<div>&nbsp;</div>

<div>&gt; what do you need me to also test to include in a bug report</div>

<div>Please make reprodrucing as easy as possible.</div>

<div>Provide platform info and Java version and the command/method you use</div>

<div>for launching Jython (IDE, java -jar, jython launcher, etc).</div>

<div>Are you using jython-standalone or did you install it with the installer, etc?</div>

<div>Further stuff on request/discussion.</div>

<div>If you want, you can try to use the profiler hook to find the bottleneck.</div>

<div>&nbsp;</div>

<div>Best</div>

<div>&nbsp;</div>

<div>-Stefan</div>

<div>&nbsp;
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b>&nbsp;Dienstag, 04. Juli 2017 um 11:32 Uhr<br/>
<b>Von:</b>&nbsp;&quot;Randall Wood&quot; &lt;ran...@al...&gt;<br/>
<b>An:</b>&nbsp;jyt...@li...<br/>
<b>Betreff:</b>&nbsp;[Jython-users] 2.7.1 significantly slower than 2.7.0</div>

<div name="quoted-content">
<div>
<div>I have a process that uses Jython to check that files are being checked into a SCM using the correct line ends (its a Java test that uses Jython, embedded using JSR 223, to run 29057 tests. Each test is the following Jython script (written on the fly in Java where PATH is the file to check and changes every time):</div>

<div>&nbsp;</div>

<div>
<div>import os</div>

<div>failing = False</div>

<div>if &quot;&#92;r&#92;n&quot; in open(os.path.normpath(PATH), &quot;rb&quot;).read():</div>

<div>&nbsp;&nbsp; &nbsp;failing = True</div>
</div>

<div>&nbsp;</div>

<div>This has the following runtimes (in seconds) on the same computer with no other changes than Jython version:</div>

<div>&nbsp;</div>

<div>Jython 2.7.0: 89.442 (~1.5 minutes)<br/>
Jython 2.7.1: 10,788.489 (~3 hours or ~120 times as long as 2.7.0)<br/>
&nbsp;</div>

<div>What could be causing this discrepancy (is there something I can do), and what do you need me to also test to include in a bug report?</div>
&nbsp;

<div>
<div style="color: rgb(0,0,0);letter-spacing: normal;text-indent: 0.0px;text-transform: none;white-space: normal;word-spacing: 0.0px;">
<div>Randall Wood</div>

<div>JMRI Developer - <a href="http://jmri.org" target="_blank">http://jmri.org</a></div>

<div>Alexandria Software - <a href="http://alexandriasoftware.com" target="_blank">http://alexandriasoftware.com</a><br/>
Northern Virginia NTRAK -&nbsp;<a href="http://nvntrak.org" target="_blank">http://nvntrak.org</a></div>

<div>&nbsp;</div>
</div>
<br class="Apple-interchange-newline"/>
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[Jython-users] 2.7.1 significantly slower than 2.7.0

[Randall W. <ran...@al...>]

I have a process that uses Jython to check that files are being checked into a SCM using the correct line ends (its a Java test that uses Jython, embedded using JSR 223, to run 29057 tests. Each test is the following Jython script (written on the fly in Java where PATH is the file to check and changes every time):

import os
failing = False
if "\r\n" in open(os.path.normpath(PATH), "rb").read():
    failing = True

This has the following runtimes (in seconds) on the same computer with no other changes than Jython version:

Jython 2.7.0: 89.442 (~1.5 minutes)
Jython 2.7.1: 10,788.489 (~3 hours or ~120 times as long as 2.7.0)

What could be causing this discrepancy (is there something I can do), and what do you need me to also test to include in a bug report?

Randall Wood
JMRI Developer - http://jmri.org
Alexandria Software - http://alexandriasoftware.com
Northern Virginia NTRAK - http://nvntrak.org

[Jython-users] Jython 2.7.1 final released!

[<fwi...@gm...>]

On behalf of the Jython development team, I'm pleased to announce that
Jython 2.7.1 final is released! We thought 2007-07-01 was the perfect time :)

Thanks to Amobee for sponsoring my work on Jython, and thanks to the
many contributors to Jython!

Details are here:

http://fwierzbicki.blogspot.com/2017/07/jython-271-final-released.html

-Frank

[Jython-users] Jython 2.7.1 rc3 released!

[<fwi...@gm...>]

On behalf of the Jython development team, I'm pleased to announce that
Jython 2.7.1 rc3 is released!

Thanks to Amobee for sponsoring my work on Jython, and thanks to the
many contributors to Jython!

Details are here:

http://fwierzbicki.blogspot.com/2017/06/jython-271-release-candidate-3-released.html

-Frank

[Jython-users] Need for one more release candidate for Jython 2.7.1

[Jim B. <jim...@py...>]

So it looks like we will need a RC3 for Jython 2.7.1, given the following
two bugs:

   - http://bugs.jython.org/issue2596 - Linebreaks in exceptions are wrong
   - PENDING
   - http://bugs.jython.org/issue2593 - file.write(obj) if obj is not a str
   or buffer raises j.l.NullPointerException - OPEN

#2596, now fixed in master, is just the sort of bug that may scramble
existing user tests (although multi-line messages are relatively rare).
#2593 has an easy path to raising a NullPointerException that can come up
in common Python code. But it should be very straightforward to guard
against, so we should have a fix for it momentarily I would assume.

And that is it. There are exactly 301 other bugs that are open, as I write
this email, so clearly we have plenty of work to consider in the future.
But in my judgment, we are about there for a final release.

But it's still not too late to submit a bug against RC2! Please test
against the download links on Frank's blog post:
http://fwierzbicki.blogspot.com/2017/06/jython-271-rc2-released.html

- Jim

[Jython-users] PyDev 5.8.0: Code Coverage fixes, IronPython debugging

[Fabio Z. <fa...@gm...>]

PyDev 5.8.0 Release Highlights

   -

   *Important* PyDev now requires Java 8 and Eclipse 4.6 (Neon) onwards.
   - PyDev 5.2.0 is the last release supporting Eclipse 4.5 (Mars).
   -

   *Code Analysis*
   - Fixed issue getting existing PyLint markers.
      - There's now an Info and an Ignore level.
   -

   *Debugger*
   - The debugger now provides hooks for clients and provides ways to
      extend the handling of custom types. See:
      https://github.com/fabioz/PyDev.Debugger/tree/master/pydevd_plugins/extensions
(patch
      by *Yuli Fiterman*).
      - Fixed issue where the debugger could end up removing quotes on
      args. *#PyDev-797*
      - The debugger now works with IronPython again -- although note that
      *IronPython* *2.7.6* and *2.7.7* have a critical bug which prevents
      IronPython from working in PyDev:
      https://github.com/IronLanguages/main/issues/1663
   -

   *Code Coverage*
   - Fixed issue getting code-coverage version. *#PyDev-791*
      - Properly works when running with pytest (provided that pytest-cov
      is installed).
   -

   *Others*
   - Update .yaml file for google app engine project templates (patch by
      *JunjieW*).
      - Upgraded Lucene to 6.1.0 (patch by *Sopot Cela*).
      - Update docstring from parameters (Ctrl+1 on *def*) properly
      considers sphinx with types. *#PyDev-787*
      - Code Completion: Properly finding *__init__* from superclass in
      inherited classes. *#PyDev-802*
      - No longer showing icon to start interactive console in toolbar
      because Eclipse could end up creating multiple entries which were shown
      forever. *#PyDev-708*
      - Other minor bugfixes.

What is PyDev?

PyDev is an open-source Python IDE on top of Eclipse for Python, Jython and
IronPython development.

It comes with goodies such as code completion, syntax highlighting, syntax
analysis, code analysis, refactor, debug, interactive console, etc.

Details on PyDev: http://pydev.org
Details on its development: http://pydev.blogspot.com
What is LiClipse?

LiClipse is a PyDev standalone with goodies such as support for Multiple
cursors, theming, TextMate bundles and a number of other languages such as
Django Templates, Jinja2, Kivy Language, Mako Templates, Html, Javascript,
etc.

It's also a commercial counterpart which helps supporting the development
of PyDev.

Details on LiClipse: http://www.liclipse.com/

Cheers,

--
Fabio Zadrozny
------------------------------

Software Developer

LiClipse
http://www.liclipse.com

PyDev - Python Development Environment for Eclipse
http://pydev.org
http://pydev.blogspot.com

PyVmMonitor - Python Profiler
http://www.pyvmmonitor.com/

Re: [Jython-users] Jython 2.7.1 rc2 released!

[<fwi...@gm...>]

On behalf of the Jython development team, I'm pleased to announce that
Jython 2.7.1 rc2 is released!

Thanks to Amobee for sponsoring my work on Jython, and thanks to the
many contributors to Jython!

Details are here:

http://fwierzbicki.blogspot.com/2017/06/jython-271-rc2-released.html

-Frank

Re: [Jython-users] Kivy with Jython

[Stefan R. <Ste...@gm...>]

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>
<div>You can try if it is maybe workable with JyNI.</div>

<div>However, even with JyNI it is currently not possible to cythonize pyx files with Jython. You can use cpython for cythonizing and then add the location of the resulting so-files to sys.path.</div>

<div>&nbsp;</div>

<div>That said, I&#39;m not sure how useful a Kivy/Jython combination would be. AFAIK main strength of kivy is availability on mobile platforms. Unfortunately, running Jython on Android is not yet feasible.</div>

<div>&nbsp;</div>

<div>-Stefan</div>

<div>&nbsp;
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b>&nbsp;Donnerstag, 01. Juni 2017 um 23:00 Uhr<br/>
<b>Von:</b>&nbsp;&quot;Tom Dossis&quot; &lt;td...@yo...&gt;<br/>
<b>An:</b>&nbsp;jyt...@li...<br/>
<b>Betreff:</b>&nbsp;Re: [Jython-users] Kivy with Jython</div>

<div name="quoted-content">
<div>
<div>Doesn&rsquo;t look like it work with jython.</div>
It failed to install it into a jython 2.7.1b3 virtualenv:

<div>&nbsp;</div>

<div>(.virtualenv) MacbookPro: td&#36; pip install Cython<br/>
Collecting Python<br/>
&hellip;</div>

<div>Successfully built Cython<br/>
Installing collected packages: Cython<br/>
Successfully installed Cython-0.25.2<br/>
<br/>
(.virtualenv) MacbookPro; td&#36; pip install kivy&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br/>
Collecting kivy<br/>
&hellip;</div>

<div>&nbsp; &nbsp;&nbsp;Detected compiler is jython<br/>
&nbsp; &nbsp;&nbsp;cythoning /private/var/folders/3q/hq68tjms01q_rl2y7ky56mkh0000gp/T/pip-build-BdDxz9/kivy/kivy/graphics/svg.pyx to /private/var/folders/3q/hq68tjms01q_rl2y7ky56mkh0000gp/T/pip-build-BdDxz9/kivy/kivy/graphics/svg.c<br/>
&nbsp; &nbsp;&nbsp;building &#39;kivy.graphics.svg&#39; extension<br/>
&nbsp; &nbsp;&nbsp;error: Compiling extensions is not supported on Jython<br/>
&nbsp;
<div>&nbsp;
<div>
<blockquote>
<div>On 2 Jun 2017, at 3:25 AM, John Anderson &lt;<a href="mailto:day...@gm..." onclick="parent.window.location.href=&#39;day...@gm...&#39;; return false;" target="_blank">day...@gm...</a>&gt; wrote:</div>
&nbsp;

<div>
<div>
<p><font size="+1">&nbsp;&nbsp;&nbsp; I have a Python app that uses Kivy. I would like to do some debugging on this app using Netbeans. I can run the app in Netbeans using a Python platform, but cannot use the debugger. If I select the Jython platform, the debugger is available, but when I try to run the app it complains about no Kivy module. I cannot find any information about installing Kivy in Jython. Is it possible to install Kivy under Jython? If so, can anyone give me a hint on how to install it?</font></p>

<p>&nbsp;</p>

<p><font size="+1">&nbsp;&nbsp;&nbsp; Thanks,</font></p>

<p><font size="+1">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; -John</font></p>

<p>&nbsp;</p>
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Re: [Jython-users] Kivy with Jython

[Tom D. <td...@yo...>]

Doesn’t look like it work with jython.
It failed to install it into a jython 2.7.1b3 virtualenv:

(.virtualenv) MacbookPro: td$ pip install Cython
Collecting Python
…
Successfully built Cython
Installing collected packages: Cython
Successfully installed Cython-0.25.2

(.virtualenv) MacbookPro; td$ pip install kivy                                 
Collecting kivy
…
    Detected compiler is jython
    cythoning /private/var/folders/3q/hq68tjms01q_rl2y7ky56mkh0000gp/T/pip-build-BdDxz9/kivy/kivy/graphics/svg.pyx to /private/var/folders/3q/hq68tjms01q_rl2y7ky56mkh0000gp/T/pip-build-BdDxz9/kivy/kivy/graphics/svg.c
    building 'kivy.graphics.svg' extension
    error: Compiling extensions is not supported on Jython


> On 2 Jun 2017, at 3:25 AM, John Anderson <day...@gm...> wrote:
> 
>     I have a Python app that uses Kivy. I would like to do some debugging on this app using Netbeans. I can run the app in Netbeans using a Python platform, but cannot use the debugger. If I select the Jython platform, the debugger is available, but when I try to run the app it complains about no Kivy module. I cannot find any information about installing Kivy in Jython. Is it possible to install Kivy under Jython? If so, can anyone give me a hint on how to install it?
> 
> 
> 
>     Thanks,
> 
>         -John
> 
> 
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