jython-users — Discussion of and questions about using Jython

[Jython-users] PyDev 6.1.0 Released

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

PyDev 6.1.0 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 Formatter*
   - The PyDev code formatter can now add/remove blank lines to comply with
      pep-8.
      - Added preference to skip blank lines formatting.
   -

   *Editor*
   - Editor now tolerant against errors in the definitions of style ranges.
      - When in link mode (after a code completion with params for
      instance), properly skip closing parenthesis if already well balanced.
      - Fix logic error in editor preferences for disabling subword
      navigation (patch by *Stuart Berg*).
   -

   *Others*
   - Using *python -m 'pip'* when unable to find pip executable in
      interpreter preferences (*#PyDev-853*).
      - PyDev set next statement action set no longer disables Debug action
      set (*#PyDev-859*).
      - It's possible to silence question about saving resources before a
      refactoring operation.
      - Add problem markers for python files that declare invalid encodings
      (patch by *Mat Booth*).
      - 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] Setting javax.net.ssl.keyStore in script

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

Erik,

this might be related to http://bugs.jython.org/issue2614.
Anyway, I think it would be best to file a new issue at
http://bugs.jython.org about this. This way it won't get
lost. Make sure to provide all info you gave in this email.

Best,

Stefan

> Gesendet: Dienstag, 03. Oktober 2017 um 23:11 Uhr
> Von: "erik nord via Jython-users" <jyt...@li...>
> An: jyt...@li...
> Betreff: [Jython-users] Setting javax.net.ssl.keyStore in script
>
> I’m trying to set the following in my Jython script:
> 
> 	System.setProperty("javax.net.ssl.keyStore", "development.jks");
> 	System.setProperty("javax.net.ssl.keyStorePassword", "changeit");
> 	System.setProperty("javax.net.ssl.keyStoreType", "jks");
> 
> 	System.setProperty("javax.net.ssl.trustStore", "developmentTrusted.jks");
> 	System.setProperty("javax.net.ssl.trustStorePassword", "changeit");
> 	System.setProperty("javax.net.ssl.trustStoreType", "jks");
> 
> 	System.setProperty("javax.net.debug", "ssl”);
> 
> Which works fine, in the essence of the script.  I can even print out the get for each of the properties, and they look proper.  When I look into the ssl logs, I see that the trustStore get properly loaded into the JVM:
> 
> 	trustStore is: developmentTrusted.jks
> 	trustStore type is : jks
> 	trustStore provider is : 
> 	init truststore
> 	adding as trusted cert:
> 	...
> 
> At no point am I seeing the keyStore get loaded into the JVM.  When I run this in pure Java, I see the following, which is what is missing from the Jython logs:
> 
> 	keyStore is : development.jks 
> 	keyStore type is : jks 
> 	keyStore provider is : 
> 	init keystore
> 	...
> 
> The issue I’m running into is that I’m not able to properly pass client certificates when the script is required to pass a client certificate to an API or load balancer.  I get the following exception in my ssl logs:
> 
> 	*** CertificateRequest 
> 	Cert Types: RSA, DSS, ECDSA 
> 	Supported Signature Algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA256withDSA, SHA224withECDSA, SHA224withRSA, SHA224withDSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA 	
> 	Cert Authorities: 
> 	<Empty> 
> 	*** ServerHelloDone 
> 	Warning: no suitable certificate found - continuing without client authentication 
> 	*** Certificate chain 
> 	<Empty> 
> 	***
> 
> Is there an issue with loading a custom keystore with Jython?  What is the proper way to load a custom keystore using Jython?
> 
> I’m using Jython 2.7.1 and Java 1.8.
> 
> Cheers - Erik
> .
> 
> ------------------------------------------------------------------------------
> 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] Setting javax.net.ssl.keyStore in script

[erik n. <ek...@ya...>]

I’m trying to set the following in my Jython script:

	System.setProperty("javax.net.ssl.keyStore", "development.jks");
	System.setProperty("javax.net.ssl.keyStorePassword", "changeit");
	System.setProperty("javax.net.ssl.keyStoreType", "jks");

	System.setProperty("javax.net.ssl.trustStore", "developmentTrusted.jks");
	System.setProperty("javax.net.ssl.trustStorePassword", "changeit");
	System.setProperty("javax.net.ssl.trustStoreType", "jks");

	System.setProperty("javax.net.debug", "ssl”);

Which works fine, in the essence of the script.  I can even print out the get for each of the properties, and they look proper.  When I look into the ssl logs, I see that the trustStore get properly loaded into the JVM:

	trustStore is: developmentTrusted.jks
	trustStore type is : jks
	trustStore provider is : 
	init truststore
	adding as trusted cert:
	...

At no point am I seeing the keyStore get loaded into the JVM.  When I run this in pure Java, I see the following, which is what is missing from the Jython logs:

	keyStore is : development.jks 
	keyStore type is : jks 
	keyStore provider is : 
	init keystore
	...

The issue I’m running into is that I’m not able to properly pass client certificates when the script is required to pass a client certificate to an API or load balancer.  I get the following exception in my ssl logs:

	*** CertificateRequest 
	Cert Types: RSA, DSS, ECDSA 
	Supported Signature Algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA256withDSA, SHA224withECDSA, SHA224withRSA, SHA224withDSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA 	
	Cert Authorities: 
	<Empty> 
	*** ServerHelloDone 
	Warning: no suitable certificate found - continuing without client authentication 
	*** Certificate chain 
	<Empty> 
	***

Is there an issue with loading a custom keystore with Jython?  What is the proper way to load a custom keystore using Jython?

I’m using Jython 2.7.1 and Java 1.8.

Cheers - Erik
.

Re: [Jython-users] Need support on jython exception /issue

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

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>
<div>Raneeth,</div>

<div>&nbsp;</div>

<div>it looks like you are referring to Jython 2.5 and I&#39;m afraid this won&#39;t receive any further support.</div>

<div>Please upgrade to Jython 2.7.1. Sorry for the inconvenience of your customers.</div>

<div>&nbsp;</div>

<div>&nbsp;</div>

<div>Best,</div>

<div>&nbsp;</div>

<div>-Stefan</div>

<div>&nbsp;</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;Freitag, 29. September 2017 um 14:49 Uhr<br/>
<b>Von:</b>&nbsp;&quot;Raneeth Kumar&quot; &lt;ran...@ou...&gt;<br/>
<b>An:</b>&nbsp;&quot;Stefan Richthofer&quot; &lt;ste...@gm...&gt;<br/>
<b>Cc:</b>&nbsp;&quot;jyt...@li...&quot; &lt;jyt...@li...&gt;<br/>
<b>Betreff:</b>&nbsp;Re: [Jython-users] Need support on jython exception /issue</div>

<div name="quoted-content">
<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Thanks a lot Stefan for your support.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Yes that issue is also same raised by my team.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">No, we have never seen this issue anywhere, this is first instance directly from customer environment.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">We have tried to simulate this issue in our local setup, but couldn&#39;t other systems also tried but not seen this issue.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Could you please let me know which configuration are you stressing here, can you supply commands to check configurations?<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Thanks<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">From: Stefan Richthofer</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Sent: Friday, September 29, 5:41 PM</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Subject: Re: [Jython-users] Need support on jython exception /issue</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">To: Raneeth Kumar</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Cc: jyt...@li...<br/>
<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Raneeth,</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">this is already tracked as an issue: <a href="http://bugs.jython.org/issue2626" target="_blank">http://bugs.jython.org/issue2626</a></div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">I replied yesterday that more information is needed.</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Please look into the issue linked above and provide the things I</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">requested there.</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">It is important to know the details of your configuration, because</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">I cannot reproduce the issue on any of my systems. So there must</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">be something special to your configuration. Did you also try it on</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">other systems?</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Best,</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Stefan</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;"><b>Gesendet</b><b>:</b>&nbsp;Donnerstag, 28. September 2017 um 14:11 Uhr</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;"><b>Von:</b>&nbsp;&quot;Raneeth Kumar&quot; &lt;ran...@ou...&gt;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;"><b>An:</b>&nbsp;&quot;jyt...@li...&quot; &lt;jyt...@li...&gt;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;"><b>Betreff</b><b>:</b>&nbsp;[Jython-users] Need support on jython exception /issue</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Hi Team,</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">I&#39;m facing BufferOverflow Exception when jython interpreter is trying to start.</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Below is an excerpt of error.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">----------------------------------------------------------------- (2017-09-27 13:08:11,972) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (<a href="http://JythonInterpreter.java:227" target="_blank">JythonInterpreter.java:227</a>) - run() - <a href="http://JythonInterpreter.run" target="_blank">JythonInterpreter.run</a>()== Starting the Python Interpereter (2017-09-27 13:08:11,996) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (<a href="http://JythonInterpreter.java:257" target="_blank">JythonInterpreter.java:257</a>) - Jython exception occured:Exception: &lt;type &#39;<a href="http://java.nio.BufferOverflowException" target="_blank">java.nio.BufferOverflowException</a>&#39;&gt; <a href="http://java.nio.BufferOverflowException" target="_blank">java.nio.BufferOverflowException</a> Traceback (most recent call last): File &quot;/opt/python/jpython/Lib/<a href="http://warnings.py" target="_blank">warnings.py</a>&quot;, line 128, in warn_explicit showwarning(message, category, filename, lineno) ----------------------------------------------------------------&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Could you please help me to identify the issue and cause for the same.<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Thanks</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world&#39;s most engaging tech sites, Slashdot.org! <a href="http://sdm.link/slashdot_______________________________________________" target="_blank"> http://sdm.link/slashdot_______________________________________________</a> Jython-users mailing list Jyt...@li... <a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">https://lists.sourceforge.net/lists/</a><a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">listinfo</a><a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">/</a><a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">jython</a><a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">-users</a><br/>
<br/>
&nbsp;</div>
</div>
</div>
</div>
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Re: [Jython-users] Need support on jython exception /issue

[Raneeth K. <ran...@ou...>]

Thanks a lot Stefan for your support.

Yes that issue is also same raised by my team.

No, we have never seen this issue anywhere, this is first instance directly from customer environment.

We have tried to simulate this issue in our local setup, but couldn't other systems also tried but not seen this issue.

Could you please let me know which configuration are you stressing here, can you supply commands to check configurations?

Thanks

From: Stefan Richthofer
Sent: Friday, September 29, 5:41 PM
Subject: Re: [Jython-users] Need support on jython exception /issue
To: Raneeth Kumar
Cc: jyt...@li...


Raneeth,
this is already tracked as an issue: http://bugs.jython.org/issue2626
I replied yesterday that more information is needed.
Please look into the issue linked above and provide the things I
requested there.
It is important to know the details of your configuration, because
I cannot reproduce the issue on any of my systems. So there must
be something special to your configuration. Did you also try it on
other systems?

Best,

Stefan

Gesendet: Donnerstag, 28. September 2017 um 14:11 Uhr
Von: "Raneeth Kumar" <ran...@ou...>
An: "jyt...@li..." <jyt...@li...>
Betreff: [Jython-users] Need support on jython exception /issue

Hi Team,
I'm facing BufferOverflow Exception when jython interpreter is trying to start.
Below is an excerpt of error.


----------------------------------------------------------------- (2017-09-27 13:08:11,972) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (JythonInterpreter.java:227<http://JythonInterpreter.java:227>) - run() - JythonInterpreter.run<http://JythonInterpreter.run>()== Starting the Python Interpereter (2017-09-27 13:08:11,996) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (JythonInterpreter.java:257<http://JythonInterpreter.java:257>) - Jython exception occured:Exception: <type 'java.nio.BufferOverflowException<http://java.nio.BufferOverflowException>'> java.nio.BufferOverflowException<http://java.nio.BufferOverflowException> Traceback (most recent call last): File "/opt/python/jpython/Lib/warnings.py<http://warnings.py>", line 128, in warn_explicit showwarning(message, category, filename, lineno) ----------------------------------------------------------------
Could you please help me to identify the issue and cause for the same.


Thanks
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Re: [Jython-users] Need support on jython exception /issue

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

<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>
<div>Raneeth,</div>

<div>this is already tracked as an issue: http://bugs.jython.org/issue2626</div>

<div>I replied yesterday that more information is needed.</div>

<div>Please look into the issue linked above and provide the things I</div>

<div>requested there.</div>

<div>It is important to know the details of your configuration, because</div>

<div>I cannot reproduce the issue on any of my systems. So there must</div>

<div>be something special to your configuration. Did you also try it on</div>

<div>other systems?</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;Donnerstag, 28. September 2017 um 14:11 Uhr<br/>
<b>Von:</b>&nbsp;&quot;Raneeth Kumar&quot; &lt;ran...@ou...&gt;<br/>
<b>An:</b>&nbsp;&quot;jyt...@li...&quot; &lt;jyt...@li...&gt;<br/>
<b>Betreff:</b>&nbsp;[Jython-users] Need support on jython exception /issue</div>

<div name="quoted-content">
<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Hi Team,</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">I&#39;m facing BufferOverflow Exception when jython interpreter is trying to start.</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Below is an excerpt of error.<br/>
<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">----------------------------------------------------------------- (2017-09-27 13:08:11,972) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (<a href="http://JythonInterpreter.java:227" target="_blank">JythonInterpreter.java:227</a>) - run() - <a href="http://JythonInterpreter.run" target="_blank">JythonInterpreter.run</a>()== Starting the Python Interpereter (2017-09-27 13:08:11,996) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (<a href="http://JythonInterpreter.java:257" target="_blank">JythonInterpreter.java:257</a>) - Jython exception occured:Exception: &lt;type &#39;<a href="http://java.nio.BufferOverflowException" target="_blank">java.nio.BufferOverflowException</a>&#39;&gt; <a href="http://java.nio.BufferOverflowException" target="_blank">java.nio.BufferOverflowException</a> Traceback (most recent call last): File &quot;/opt/python/jpython/Lib/<a href="http://warnings.py" target="_blank">warnings.py</a>&quot;, line 128, in warn_explicit showwarning(message, category, filename, lineno) ----------------------------------------------------------------&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Could you please help me to identify the issue and cause for the same.<br/>
<br/>
&nbsp;</div>

<div style="direction: ltr;margin: 0;padding: 0;font-family: sans-serif;font-size: 11.0pt;color: black;background-color: white;">Thanks</div>
------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world&#39;s most engaging tech sites, Slashdot.org! <a href="http://sdm.link/slashdot_______________________________________________" target="_blank">http://sdm.link/slashdot_______________________________________________</a> Jython-users mailing list Jyt...@li... <a href="https://lists.sourceforge.net/lists/listinfo/jython-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/jython-users</a></div>
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</div></div></body></html>

[Jython-users] Need support on jython exception /issue

[Raneeth K. <ran...@ou...>]

Hi Team,
I'm facing BufferOverflow Exception when jython interpreter is trying to start.
Below is an excerpt of error.


----------------------------------------------------------------- (2017-09-27 13:08:11,972) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (JythonInterpreter.java:227<http://JythonInterpreter.java:227>) - run() - JythonInterpreter.run<http://JythonInterpreter.run>()== Starting the Python Interpereter (2017-09-27 13:08:11,996) DEBUG [JMThread, Activity name:xakamahMSCmapping:activityId=60206,activityId=60206] (JythonInterpreter.java:257<http://JythonInterpreter.java:257>) - Jython exception occured:Exception: <type 'java.nio.BufferOverflowException<http://java.nio.BufferOverflowException>'> java.nio.BufferOverflowException<http://java.nio.BufferOverflowException> Traceback (most recent call last): File "/opt/python/jpython/Lib/warnings.py<http://warnings.py>", line 128, in warn_explicit showwarning(message, category, filename, lineno) ----------------------------------------------------------------
Could you please help me to identify the issue and cause for the same.


Thanks

Re: [Jython-users] How can we get pre-release build of Jython?

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

Ivan:

Glad that works for you. Do be aware you are working with the edge in 
taking it from the repo tip. I think it's in good shape at the moment 
but you are the first person to have built an installer or standalone 
jar from that particular configuration.

We'd all like to release more often, and we were discussing a 2.7.2 
soon, partly because of this fix. But then we're always saying that kind 
of thing. :p

Jeff


On 26/09/2017 21:32, Ivan Ponomarev via Jython-users wrote:
> Dear Stefan,
>
> thank you for your quick and comprehensive answer!
>
> It really works, I'm able to build the freshest Jython from source and 
> solve our dependency issues! Thanks a lot!
>
> Regards,
>
> Ivan.
>
> 26.09.2017 11:55, Stefan Richthofer пишет:
>> Dear Ivan,
>> Jython is conveniently built using ant:
>>
>> ant installer
>>
>> or
>>
>> ant jar-standalone
>>
>> should do the trick to get the installer or standalone jar respectively.
>> So there are no further requirements than JDK 7 or 8 (9?) and ant.
>>
>> While it is said to be possible to configure an IDE to get the build
>> done I found it very complicated and never really got it right
>> (e.g. for eclipse). So I'd recommend to simply stick to plain ant
>> command line.
>>
>>
>> Best,
>>
>> Stefan
>>
>>
>>> Gesendet: Dienstag, 26. September 2017 um 10:36 Uhr
>>> Von: "Ivan Ponomarev via Jython-users" 
>>> <jyt...@li...>
>>> An: jyt...@li...
>>> Betreff: [Jython-users] How can we get pre-release build of Jython?
>>>
>>> Hi all!
>>>
>>> How can we get current build of Jython? Instructions found here
>>> http://www.jython.org/archive/21/docs/compile.html seems to be very old
>>> and outdated.
>>>
>>> Our problem is that 2.7.1 version is unusable for us because of
>>> http://bugs.jython.org/issue2609 that I reported and that is now marked
>>> as fixed. As we know it takes years for new releases of jython, so 
>>> there
>>> is no point waiting for the next release.
>>>
>>> As a workaround, we were using 2.7.1b3 (that is not affected by the
>>> bug), until stumbled upon the problem with outdated version of 
>>> jnr.posix
>>> library that is included into jython 2.7.1b3 jar.
>>>
>>> We are trying to use TestContainers (https://www.testcontainers.org/),
>>> this library depends on newer jnr.posix, but older classes from jython
>>> are loaded, so we are in jar hell. It seems that current jython uses
>>> newer jnr.posix, but, once again, we cannot use 2.7.1 release.
>>>
>>> What would you suggest?
>>>
>>> Regards,
>>>
>>> Ivan
>>>
>>> ------------------------------------------------------------------------------ 
>>>
>>> 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
>>>
>
>
> ------------------------------------------------------------------------------ 
>
> 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] How can we get pre-release build of Jython?

[Ivan P. <ipo...@ma...>]

Dear Stefan,

thank you for your quick and comprehensive answer!

It really works, I'm able to build the freshest Jython from source and 
solve our dependency issues! Thanks a lot!

Regards,

Ivan.

26.09.2017 11:55, Stefan Richthofer пишет:
> Dear Ivan,
> Jython is conveniently built using ant:
>
> ant installer
>
> or
>
> ant jar-standalone
>
> should do the trick to get the installer or standalone jar respectively.
> So there are no further requirements than JDK 7 or 8 (9?) and ant.
>
> While it is said to be possible to configure an IDE to get the build
> done I found it very complicated and never really got it right
> (e.g. for eclipse). So I'd recommend to simply stick to plain ant
> command line.
>
>
> Best,
>
> Stefan
>
>
>> Gesendet: Dienstag, 26. September 2017 um 10:36 Uhr
>> Von: "Ivan Ponomarev via Jython-users" <jyt...@li...>
>> An: jyt...@li...
>> Betreff: [Jython-users] How can we get pre-release build of Jython?
>>
>> Hi all!
>>
>> How can we get current build of Jython? Instructions found here
>> http://www.jython.org/archive/21/docs/compile.html seems to be very old
>> and outdated.
>>
>> Our problem is that 2.7.1 version is unusable for us because of
>> http://bugs.jython.org/issue2609 that I reported and that is now marked
>> as fixed. As we know it takes years for new releases of jython, so there
>> is no point waiting for the next release.
>>
>> As a workaround, we were using 2.7.1b3 (that is not affected by the
>> bug), until stumbled upon the problem with outdated version of jnr.posix
>> library that is included into jython 2.7.1b3 jar.
>>
>> We are trying to use TestContainers (https://www.testcontainers.org/),
>> this library depends on newer jnr.posix, but older classes from jython
>> are loaded, so we are in jar hell. It seems that current jython uses
>> newer jnr.posix, but, once again, we cannot use 2.7.1 release.
>>
>> What would you suggest?
>>
>> Regards,
>>
>> Ivan
>>
>> ------------------------------------------------------------------------------
>> 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] How can we get pre-release build of Jython?

[Hasan D. <has...@gm...>]

There are beta releases of both the standalone and the embedded jar at
maven central. Hope that helps!

-- H

On Sep 26, 2017 10:36 AM, "Ivan Ponomarev via Jython-users" <
jyt...@li...> wrote:

Hi all!

How can we get current build of Jython? Instructions found here
http://www.jython.org/archive/21/docs/compile.html seems to be very old and
outdated.

Our problem is that 2.7.1 version is unusable for us because of
http://bugs.jython.org/issue2609 that I reported and that is now marked as
fixed. As we know it takes years for new releases of jython, so there is no
point waiting for the next release.

As a workaround, we were using 2.7.1b3 (that is not affected by the bug),
until stumbled upon the problem with outdated version of jnr.posix library
that is included into jython 2.7.1b3 jar.

We are trying to use TestContainers (https://www.testcontainers.org/), this
library depends on newer jnr.posix, but older classes from jython are
loaded, so we are in jar hell. It seems that current jython uses newer
jnr.posix, but, once again, we cannot use 2.7.1 release.

What would you suggest?

Regards,

Ivan

------------------------------------------------------------
------------------
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] How can we get pre-release build of Jython?

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

Dear Ivan,
Jython is conveniently built using ant:

ant installer

or

ant jar-standalone

should do the trick to get the installer or standalone jar respectively.
So there are no further requirements than JDK 7 or 8 (9?) and ant.

While it is said to be possible to configure an IDE to get the build
done I found it very complicated and never really got it right
(e.g. for eclipse). So I'd recommend to simply stick to plain ant
command line.


Best,

Stefan


> Gesendet: Dienstag, 26. September 2017 um 10:36 Uhr
> Von: "Ivan Ponomarev via Jython-users" <jyt...@li...>
> An: jyt...@li...
> Betreff: [Jython-users] How can we get pre-release build of Jython?
>
> Hi all!
> 
> How can we get current build of Jython? Instructions found here 
> http://www.jython.org/archive/21/docs/compile.html seems to be very old 
> and outdated.
> 
> Our problem is that 2.7.1 version is unusable for us because of 
> http://bugs.jython.org/issue2609 that I reported and that is now marked 
> as fixed. As we know it takes years for new releases of jython, so there 
> is no point waiting for the next release.
> 
> As a workaround, we were using 2.7.1b3 (that is not affected by the 
> bug), until stumbled upon the problem with outdated version of jnr.posix 
> library that is included into jython 2.7.1b3 jar.
> 
> We are trying to use TestContainers (https://www.testcontainers.org/), 
> this library depends on newer jnr.posix, but older classes from jython 
> are loaded, so we are in jar hell. It seems that current jython uses 
> newer jnr.posix, but, once again, we cannot use 2.7.1 release.
> 
> What would you suggest?
> 
> Regards,
> 
> Ivan
> 
> ------------------------------------------------------------------------------
> 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] How can we get pre-release build of Jython?

[Ivan P. <ipo...@ma...>]

Hi all!

How can we get current build of Jython? Instructions found here 
http://www.jython.org/archive/21/docs/compile.html seems to be very old 
and outdated.

Our problem is that 2.7.1 version is unusable for us because of 
http://bugs.jython.org/issue2609 that I reported and that is now marked 
as fixed. As we know it takes years for new releases of jython, so there 
is no point waiting for the next release.

As a workaround, we were using 2.7.1b3 (that is not affected by the 
bug), until stumbled upon the problem with outdated version of jnr.posix 
library that is included into jython 2.7.1b3 jar.

We are trying to use TestContainers (https://www.testcontainers.org/), 
this library depends on newer jnr.posix, but older classes from jython 
are loaded, so we are in jar hell. It seems that current jython uses 
newer jnr.posix, but, once again, we cannot use 2.7.1 release.

What would you suggest?

Regards,

Ivan

[Jython-users] Issue with Java varargs and Jython list

[Benoit L. <lom...@ex...>]

Dear All,

I have an issue with calling java varargs function from jython. I use 
Jython 2.7.0 from ImageJ.

My Java function expects Object... as parameter. When calling it from 
jython everything goes fine unless one of the parameter is a list. In 
that case the script complains that the Java function expects a single 
parameter but received more. I put a toy example below to illustrate. If 
anyone has idea to circumvent that issue, I'd be really grateful.

In practice I am trying to write a small library in Java to wrap some 
image analysis functions. The goal is to make the function easy to use 
for people getting started with scripting. Basically I try to avoid java 
import in the script as well as conversions or unecessary syntax that 
could be confusing to beginners. Ideally I'd like user to pass for 
instance an image and a list of number (representing the size of a voxel 
or a filter size for instance) and the jython list would be interpreted 
on the Java side as List<Float> or Float[]. Any advice to go in that 
direction would be super welcome.

Thanks!

Benoit

// java side
public class myClass{

     public void test( Object... args ){

         for(Object object : args)

             System.out.println( object.toString() );

     }

}


# jython side

import myClass

myClass().test("hello", 1 ) # this works fine

myClass().test( [ 1, 1 ] ) # this works fine too

myClass().test("hello", [ 1 , 1 ] ) # this crashes with: "TypeError: 
test(): expected 1 args; got 2"
myClass().test( [ "hello", [ 1 , 1 ] ] ) # seems to work too

PS: I've seen that putting all the parameters in a list would be 
workaround. By chance does jython 2.7.1 would allow to avoid these 
additionnal bracket?

-- 
Benoit Lombardot, PhD
Bio-Image Informatics team leader
Scientific Computing Facility

Max Planck Institute CBG
Pfotenhauer Str. 108, 01307 Dresden
room: 009 (CSBD)
phone: +49 351 210 2544

Re: [Jython-users] JyNI 2.7-alpha.5 released: JyNI also runs on Windows now

[Jeff M. <jef...@za...>]

Great news.. thanks for the update!

On Sat, Sep 23, 2017 at 1:03 PM, Stefan Richthofer <Ste...@gm...
> wrote:

> With JyNI alpha 5, I proudly announce the first version of JyNI that
> also runs on Windows.
>
> JyNI is a layer that allows Jython to load native CPython extensions.
> Most notably ctypes and NumPy are already workable (core functionality).
>
>
> Take a look at
>
> jyni.org
>
> or go directly to the release:
>
> https://github.com/Stewori/JyNI/releases/tag/v2.7-alpha.5
>
>
> Binaries are provided for Linux, OS X and Windows.
> It should in principle also work on other POSIX platforms.
>
>
>
> NumPy support
> -------------
>
> From JyNI alpha 4 onwards, some NumPy support is available.
> For JyNI alpha 5 featuring Windows support, we explicitly asserted that
> NumPy works on Windows equally well as on Linux and OS X,
> i.e. up to known limitations.
>
> For details about NumPy support see
>
> https://github.com/Stewori/JyNI/releases/tag/v2.7-alpha.4
> https://github.com/Stewori/JyNI/issues/2
>
>
>
> Google Summer of Code
> ---------------------
>
> JyNI alpha 5 was mainly developed within a Google Summer of Code project:
>
> https://summerofcode.withgoogle.com/projects/#4931062149939200
> http://gsoc2017-jyni.blogspot.de for details.
>
>
>
> What comes next?
> ----------------
>
> The Python C API is not yet fully supported. A major goal for the next
> release is to add support for the buffer protocol, which is currently
> blocking support for SciPy and various other extensions.
>
>
>
> Enjoy!
>
>
> -Stefan
>
> ------------------------------------------------------------
> ------------------
> 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] JyNI 2.7-alpha.5 released: JyNI also runs on Windows now

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

With JyNI alpha 5, I proudly announce the first version of JyNI that
also runs on Windows.

JyNI is a layer that allows Jython to load native CPython extensions.
Most notably ctypes and NumPy are already workable (core functionality).


Take a look at

jyni.org

or go directly to the release:

https://github.com/Stewori/JyNI/releases/tag/v2.7-alpha.5


Binaries are provided for Linux, OS X and Windows.
It should in principle also work on other POSIX platforms.



NumPy support
-------------

>From JyNI alpha 4 onwards, some NumPy support is available.
For JyNI alpha 5 featuring Windows support, we explicitly asserted that
NumPy works on Windows equally well as on Linux and OS X,
i.e. up to known limitations.

For details about NumPy support see

https://github.com/Stewori/JyNI/releases/tag/v2.7-alpha.4
https://github.com/Stewori/JyNI/issues/2



Google Summer of Code
---------------------

JyNI alpha 5 was mainly developed within a Google Summer of Code project:

https://summerofcode.withgoogle.com/projects/#4931062149939200
http://gsoc2017-jyni.blogspot.de for details.



What comes next?
----------------

The Python C API is not yet fully supported. A major goal for the next
release is to add support for the buffer protocol, which is currently
blocking support for SciPy and various other extensions.



Enjoy!


-Stefan

[Jython-users] Daemon support?

[HADDLETON, R. W (Bob) <bob...@no...>]

Is there a functional daemon module for Jython?  I used the built in 
daemon.DaemonContext() some time ago and it seemed to work, but now it 
wants the resource package which is not available in Jython.

> >>> from daemon import DaemonContext
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/opt/jython-2.7.0/Lib/site-packages/daemon/__init__.py", line 
> 42, in <module>
>     from .daemon import DaemonContext
>   File "/opt/jython-2.7.0/Lib/site-packages/daemon/daemon.py", line 
> 26, in <module>
>     import resource
> ImportError: No module named resource

Thanks

Bob

[Jython-users] PyDev 6.0.0 Released

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

PyDev 6.0.0 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).
   -

   *Interpreter configuration*
   - The *list of packages* installed in the interpreter is shown in the
      IDE (supports either *pip* or *conda*).
      - It's now possible to *install/uninstall* packages using either *pip*
       or *conda* directly from the IDE.
      - Provides a way to *load variables* if interpreter is from a *conda
      environment* (Load conda env vars before run configuration).
      - A default string substitution variable named *PY* is now created
      with the major and minor version of the created interpreter.
      - It's now possible to configure a project to always use a grammar
      compatible with the interpreter version (default for new projects --
      *#PyDev-846*).
   -

   *Editor*
   - *Subword* navigation is now available (and enabled by default -- can
      be customized at *PyDev > Editor*).
      - Changed default config for minimap (smaller and not showing
      elements -- can be customized at *PyDev > Editor > Overview Ruler
      Minimap*).
      - Code completion no longer active in comments in last line of editor
      (*#PyDev-762*).
   -

   *Debugger*
   - Fix find_module signature (patch by James Blackburn).
      - Fix qt_loader to support *PEP 302* correctly.
      - Fix in matplotlib_options from ipython (*#PyDev-779*).
      - When show all uppercase references is used as a filter, only digits
      shouldn't be filtered out in variables view (#PyDev-794).
   -

   *PyLint*
   - Added setting to search *PyLint* installed in interpreter (*#PyDev-811*
      ).
   -

   *Unittest*
   - It's possible to edit a run configuration from dialog to select tests
      to run (Ctrl+F9) (patch by *Robert Gomulka*).
      - Test(s) name is shown in the run configuration (patch by *Robert
      Gomulka* -- *#PyDev-840*).
   -

   *isort integration*
   - The modules that are known to be third party or system modules in the
      PyDev configuration are passed to *isort*.
      - Proper support for *isort:skip* and *isort:skip_file*.
      - Internal isort caches properly being cleared between invocations
      (fix for case where changes to config were not reflected in isort).
   -

   *Others*
   - Fix to properly interrupt infinite loop in the Interactive Console (
      *#PyDev-816*).
      - Fix issue where user could do a drag n drop in system libs which
      could put an entry below another entry, which actually removed
it from the
      config (*#PyDev-821*).
      - Fix where *runfile* was not available on *interactive debugger* when
      python-future is installed (*#PyDev-845*).
      - Fix NullPointerException on code-completion.
      - mutagen added to forced builtins by default (*#PyDev-819*).

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] Use the attributes and methods with the same name of a class

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

In situations like that, you may have to revert to Java reflection to
access the appropriate method or field of a Java class.
I didn't look at your PApplet, so these might not be completely correct,
but something like this should get you close.

class test(PApplet):
  def __init__(self):
    self.mousePressedField = PApplet.getDeclaredField('mousePressed')
    self.mousePressedMethod = PApplet.getDeclaredMethod('mousePressed',[])
# Argument types go in the []

   def draw(self):
      fieldValue = self.mousePressedField.get(self)
      if fieldValue:
        #  Maybe need to invoke the method now?
        self.mousePressedMethod.invoke(self,[])  # Argument values go in
the []



On Mon, 11 Sep 2017 18:10:24 -0500, Cristian Danilo Ramirez Vargas
<rvc...@gm...> wrote:
> ​​Hi, Im Cristian.
> Im working in Jython for use the processings core but I have a problem
to
> translate this example https://processing.org/tutorials/gettingstarted/
> [1] to Jython, because the class PApplet have a method and an attribute
> with the same name (mousePressed).
> The PApplets source code is:
>
https://github.com/processing/processing/blob/master/core/src/processing/core/PApplet.java
> [2].
> And the code that I have is:
> from processing.core import PApplet
> class test(PApplet):def settings(self):self.size(480, 120)
> def draw(self):    if self.mousePressed:        self.fill(0)   
> else:        print type(self.mousePressed)        self.fill(255)
>     self.ellipse(self.mouseX, self.mouseY, 80, 80)if __name__ ==
> "__main__":processingArgs = ["test"]myProcessingSketch =
> test()myProcessingSketch.runSketch(processingArgs)
> Thank you for your time (and sorry for the bad english :p)
> 
> Links:
> ------
> [1] https://processing.org/tutorials/gettingstarted/
> [2]
>
https://github.com/processing/processing/blob/master/core/src/processing/core/PApplet.java

[Jython-users] Use the attributes and methods with the same name of a class

[Cristian D. R. V. <rvc...@gm...>]

​​
Hi, I'm Cristian.

I'm working in Jython for use the processing's core but I have a problem to
translate this example https://processing.org/tutorials/gettingstarted/ to
Jython, because the class PApplet have a method and an attribute with the
same name (mousePressed).

The PApplet's source code is:
https://github.com/processing/processing/blob/master/core/src/processing/core/PApplet.java
.

And the code that I have is:

from processing.core import PApplet

class test(PApplet):
def settings(self):
self.size(480, 120)

def draw(self):
    if self.mousePressed:
        self.fill(0)
    else:
        print type(self.mousePressed)
        self.fill(255)

    self.ellipse(self.mouseX, self.mouseY, 80, 80)
if __name__ == "__main__":
processingArgs = ["test"]
myProcessingSketch = test()
myProcessingSketch.runSketch(processingArgs)

Thank you for your time (and sorry for the bad english :p)

Re: [Jython-users] Packaging Jython code in jar

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

Ivan,

Darjus Loktevic and I worked on Clamp (https://github.com/jythontools/clamp),
which is a project to support such packaging and other functionality, but
it's not been updated for 3 years. But it still works fine. Just keep in
mind its documented limitations.

We would be open to any PRs against Clamp - there are a lot of things that
can be done, per https://github.com/jythontools/clamp#todo

- Jim

On Mon, Sep 4, 2017 at 4:33 AM, Ivan Golovko <ioa...@gm...> wrote:

> Hi all, we use Jython as a scripting engine inside a Java app. Besides
> our Java classes, we would like to provide people who write scripts with
> certain code written in Python, e. g. function decorators. We need to
> package our Jython code in jar to do this. But plaintext.py (as instance) files
> won’t work.
> We tried jython-compile-maven-plugin
> <http://mavenjython.sourceforge.net/compile/index.html>, but it appears
> to be outdated and not working.
>
> Help us find a solution.
>
> In details.
>
> 1. We have a java application that is built by maven.
> 2. There are some *.py *filies in the resource directory.
> 3. A running application can work with external *.py *files.
>
> We want external *.py* files to be able to use jython modules from the
> resource directory.
>
> --
> С уважением, Иван Головко
>
> ------------------------------------------------------------
> ------------------
> 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] Packaging Jython code in jar

[Ivan G. <ioa...@gm...>]

Hi all, we use Jython as a scripting engine inside a Java app. Besides our
Java classes, we would like to provide people who write scripts with
certain code written in Python, e. g. function decorators. We need to
package our Jython code in jar to do this. But plaintext.py (as instance) files
won’t work.
We tried jython-compile-maven-plugin
<http://mavenjython.sourceforge.net/compile/index.html>, but it appears to
be outdated and not working.

Help us find a solution.

In details.

1. We have a java application that is built by maven.
2. There are some *.py *filies in the resource directory.
3. A running application can work with external *.py *files.

We want external *.py* files to be able to use jython modules from the
resource directory.

-- 
С уважением, Иван Головко

Re: [Jython-users] A scientific computation and visualization environment using Jython and Java

[Curtis R. <ctr...@wi...>]

Hi Claude,

> Tensorflow API package which could also work as a transfer mechanism
> between the Java and Python spaces

TensorFlow is great. However, I believe it uses standard JNI which copies
the data over the bridge. Recently, the ImgLib2 community has developed a
component called ImgLyb which bridges ImgLib2 with CPython via PyJNIus [1]
without requiring a copy. For details, see the website [2]. ImgLyb also
works in Jython via JyNI [3], so as JyNI matures the situation will get
better and better.

Regards,
Curtis

[1] https://github.com/kivy/pyjnius
[2] https://github.com/hanslovsky/imglib2-imglyb
[3] http://forum.imagej.net/t/jupyter-notebook-for-imagej/5421/19?u=ctrueden

--
Curtis Rueden
LOCI software architect - https://loci.wisc.edu/software
ImageJ2 lead, Fiji maintainer - https://imagej.net/User:Rueden
Did you know ImageJ has a forum? http://forum.imagej.net/


On Wed, Aug 30, 2017 at 6:26 AM, Claude Falbriard <cl...@br...>
wrote:

> Dear Yaqiang,
>
> This is great news to see the Jython language entering into to the array
> computing space with open packages like JyNI, as well as the Meteoinfo
> software. I certainly will give it a trial and share the experience.
>
> I just checked the documentation of the Tensorflow API package which could
> also work as a transfer mechanism between the Java and Python spaces. Yet
> another Java package which compares to Python Numpy is the ND4J [
> <http://nd4j.org/>http://nd4j.org/].
>
> The Meteoinfo package site looks great [ http://www.meteothinker.com/].
> Congratulation.
>
> Regards,
> Claude
>
>
>
>
>
> *Claude Falbriard Certified IT Specialist L2 - MiddlewareGBS Hortolândia /
> SP - Brazilmobile:    +55 13 9  8117 3316*
>
> *e-mail:    cl...@br... <cl...@br...>*
>
>
>
> From:        Yaqiang Wang <yaq...@gm...>
> To:        jython-users <jyt...@li...>, jython-dev <
> jyt...@li...>
> Date:        08/30/2017 03:09 AM
> Subject:        [Jython-users] A scientific computation and visualization
> environment using Jython and Java
> ------------------------------
>
>
>
> One of the deal ends of Jython is no multi-dimensional array computing
> library like Numpy of CPython. JyNI is a good solution to support Numpy
> from Jython. Another way is to develop Numpy like functions using Java and
> Jython. I am working on a software of MeteoInfo which has now fulfilled
> many functions of Numpy, Matplotlib and Basemap only use Jython and Java.
> MeteoInfo is free and open source under LGPL license (
> *http://www.meteothinker.com/*
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.meteothinker.com_&d=DwMFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=TvxlcmrkAwwVg4xU395qEv6imOWs1ZovHcPzKkv5gSA&m=3jdzrqg_YPt3TGkfkuNCMqI2zemun_iyRx4GIANkHYI&s=2SU4SGHHUjOJ6BZ2dgjbGH4lizZfrlIprbzyJ_sorOM&e=>
> ). Welcome to use and develop it.
>
> Regards
> Yaqiang
> ------------------------------
>
> *************************************************
> Dr. Yaqiang Wang
> Chinese Academy of Meteorological Sciences (CAMS)
> 46, Zhong-Guan-Cun South Avenue
> Beijing, 100081
> China
>
> *yaq...@gm...* <yaq...@gm...>
>
> *http://www.meteothinker.com*
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.meteothinker.com&d=DwMFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=TvxlcmrkAwwVg4xU395qEv6imOWs1ZovHcPzKkv5gSA&m=3jdzrqg_YPt3TGkfkuNCMqI2zemun_iyRx4GIANkHYI&s=3T4WRXgWdMZT7cLlxw92_DUhO70eObzvj4HMjvi36e8&e=>
> *https://www.researchgate.net/profile/Yaqiang_Wang5*
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.researchgate.net_profile_Yaqiang-5FWang5&d=DwMFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=TvxlcmrkAwwVg4xU395qEv6imOWs1ZovHcPzKkv5gSA&m=3jdzrqg_YPt3TGkfkuNCMqI2zemun_iyRx4GIANkHYI&s=YJNnOggVSSBYoBtTNRvySpzIVrf42LS6TpHehf-MQ6Q&e=>
>
> **************************************************----------
> --------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! https://urldefense.proofpoint.
> com/v2/url?u=http-3A__sdm.link_slashdot&d=DwICAg&c=jf_
> iaSHvJObTbx-siA1ZOg&r=TvxlcmrkAwwVg4xU395qEv6imOWs1Z
> ovHcPzKkv5gSA&m=3jdzrqg_YPt3TGkfkuNCMqI2zemun_iyRx4GIANkHYI&s=
> 6ZMs1Ipb8bY8BIDX0kk6igCPRWJU_npmwAAXXFgyDQc&e=_____________
> __________________________________
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> Jyt...@li...
> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.
> sourceforge.net_lists_listinfo_jython-2Dusers&d=DwICAg&c=jf_iaSHvJObTbx-
> siA1ZOg&r=TvxlcmrkAwwVg4xU395qEv6imOWs1ZovHcPzKkv5gSA&m=3jdzrqg_
> YPt3TGkfkuNCMqI2zemun_iyRx4GIANkHYI&s=lL_ep-bPJf9FYQas21TT56gmj9ihlS4K81Ne
> 7mg86BU&e=
>
>
>
>
> ------------------------------------------------------------
> ------------------
> 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] A scientific computation and visualization environment using Jython and Java

[Claude F. <cl...@br...>]

Dear Yaqiang, 

This is great news to see the Jython language entering into to the array 
computing space with open packages like JyNI, as well as the Meteoinfo 
software. I certainly will give it a trial and share the experience. 

I just checked the documentation of the Tensorflow API package which could 
also work as a transfer mechanism between the Java and Python spaces. Yet 
another Java package which compares to Python Numpy is the ND4J [ 
http://nd4j.org/ ]. 

The Meteoinfo package site looks great [ http://www.meteothinker.com/ ]. 
Congratulation. 

Regards, 
Claude 


Claude Falbriard 
Certified IT Specialist L2 - Middleware
GBS Hortolândia / SP - Brazil
mobile:    +55 13 9  8117 3316
e-mail:    cl...@br...




From:   Yaqiang Wang <yaq...@gm...>
To:     jython-users <jyt...@li...>, jython-dev 
<jyt...@li...>
Date:   08/30/2017 03:09 AM
Subject:        [Jython-users] A scientific computation and visualization 
environment using Jython and Java



One of the deal ends of Jython is no multi-dimensional array computing 
library like Numpy of CPython. JyNI is a good solution to support Numpy 
from Jython. Another way is to develop Numpy like functions using Java and 
Jython. I am working on a software of MeteoInfo which has now fulfilled 
many functions of Numpy, Matplotlib and Basemap only use Jython and Java. 
MeteoInfo is free and open source under LGPL license (
http://www.meteothinker.com/). Welcome to use and develop it.

Regards
Yaqiang

*************************************************
Dr. Yaqiang Wang
Chinese Academy of Meteorological Sciences (CAMS)
46, Zhong-Guan-Cun South Avenue
Beijing, 100081
China
　　　　　　　　　　　　　
yaq...@gm...

http://www.meteothinker.com
https://www.researchgate.net/profile/Yaqiang_Wang5
**************************************************
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! 
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Re: [Jython-users] A scientific computation and visualization environment using Jython and Java

[Curtis R. <ctr...@wi...>]

Hi Yaqiang,

> Another way is to develop Numpy like functions using Java and Jython.

A powerful N-dimensional array computing library written in Java is ImgLib2
[1]. It is the core image processing library of ImageJ [2], which
integrates with Jython as a scripting language [3]. The ImageJ application
provides a script editor in which Jython can be used, and ImageJ can be
invoked from Jython scripts via its API.

Regards,
Curtis

[1] http://imglib2.net/
[2] https://imagej.net/
[3] https://imagej.net/Jython

--
Curtis Rueden
LOCI software architect - https://loci.wisc.edu/software
ImageJ2 lead, Fiji maintainer - https://imagej.net/User:Rueden
Did you know ImageJ has a forum? http://forum.imagej.net/


On Wed, Aug 30, 2017 at 1:09 AM, Yaqiang Wang <yaq...@gm...>
wrote:

> One of the deal ends of Jython is no multi-dimensional array computing
> library like Numpy of CPython. JyNI is a good solution to support Numpy
> from Jython. Another way is to develop Numpy like functions using Java and
> Jython. I am working on a software of MeteoInfo which has now fulfilled
> many functions of Numpy, Matplotlib and Basemap only use Jython and Java.
> MeteoInfo is free and open source under LGPL license (
> http://www.meteothinker.com/). Welcome to use and develop it.
>
> Regards
> Yaqiang
> ------------------------------
> *************************************************
> Dr. Yaqiang Wang
> Chinese Academy of Meteorological Sciences (CAMS)
> 46, Zhong-Guan-Cun South Avenue
> Beijing, 100081
> China
>
> yaq...@gm...
>
> http://www.meteothinker.com
> *https://www.researchgate.net/profile/Yaqiang_Wang5
> <https://www.researchgate.net/profile/Yaqiang_Wang5>*
> **************************************************
>
> ------------------------------------------------------------
> ------------------
> 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] A scientific computation and visualization environment using Jython and Java

[Yaqiang W. <yaq...@gm...>]

 One of the deal ends of Jython is no multi-dimensional array computing
library like Numpy of CPython. JyNI is a good solution to support Numpy
from Jython. Another way is to develop Numpy like functions using Java and
Jython. I am working on a software of MeteoInfo which has now fulfilled
many functions of Numpy, Matplotlib and Basemap only use Jython and Java.
MeteoInfo is free and open source under LGPL license (
http://www.meteothinker.com/). Welcome to use and develop it.

Regards
Yaqiang
------------------------------
*************************************************
Dr. Yaqiang Wang
Chinese Academy of Meteorological Sciences (CAMS)
46, Zhong-Guan-Cun South Avenue
Beijing, 100081
China

yaq...@gm...

http://www.meteothinker.com
*https://www.researchgate.net/profile/Yaqiang_Wang5
<https://www.researchgate.net/profile/Yaqiang_Wang5>*
**************************************************