Re: [Jython-dev] Building Jython3

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

I'm not sure I understand the relevance of "force pushed" as an 
explanation. However, it now builds for me in a version fetched from 
https://github.com/jython/jython3. I managed this change by following 
the CPython dev guide. (See https://github.com/jython/jython3/pull/29, 
and the thread I started about that process.) It was a bit long-winded, 
but the first time is not representative.

I'll turn to making sure I can get a meaningful stack trace out on 
Windows first, as the issue here is encoding -- familiar territory now 
-- and it is a prerequisite for other progress.

Jeff

Jeff Allen

On 31/05/2017 22:09, Jeff Allen wrote:
>
> It fails either way for me (-S or not), and with the same error Isaiah 
> reports. However, I'm just impressed it compiles the 3.5 std lib.
>
> When I say "the same error", I can tell that from debug, but in fact 
> it dies trying to print the error because it can't find the right 
> codec (cp850). I'm not phased though, as I've solved that before. 
> (https://hg.python.org/jython/file/tip/src/org/python/core/Py.java#l1345) 
> Lot's to chew on here.
>
> Jeff
>
> Jeff Allen
> On 31/05/2017 21:29, Isaiah Peng wrote:
>> Hi Frank,
>>
>> Looks like the master branch is force pushed, if I run 
>> `dist/bin/jython -S` it shows a stacktrace:
>>
>> TypeError: org.python.modules.zipimport.PyZipImporter(): 1st arg 
>> can't be coerced to org.python.core.PyType
>> Exception in thread "main" java.util.NoSuchElementException at 
>> java.util.LinkedList.removeFirst(LinkedList.java:270) at 
>> java.util.LinkedList.pop(LinkedList.java:801)
>>         at org.python.core.Py.printException(Py.java:1420)
>>         at org.python.core.Py.printException(Py.java:1362)
>>         at org.python.util.jython.run(jython.java:419)
>>         at org.python.util.jython.main(jython.java:141)
>>
>> However, when I try the old HEAD 
>> `9fae4ae17d27b540b6c22707317fd3c8d83d8cfe`, it can actually run 
>> without `-S`, but since I only have a linux machine, cannot grantee 
>> that you'll get the same result on other OS.
>>
>> (git)-[9fae4ae...] % dist/bin/jython
>> Listening for transport dt_socket at address: 5005
>> Jython 3.5.1a1+ (, Mai 31 2017, 22:20:58)
>> [Java HotSpot(TM) 64-Bit Server VM (Oracle Corporation)] on java1.8.0_131
>> Type "help", "copyright", "credits" or "license" for more information.
>> >>>
>>
>> A side note, don't use java9, the bootstrap process needs some change 
>> to be able to load java packages from java modules, as there is no 
>> more rt.jar exists.
>>
>> Hope that helps.
>> Isaiah
>>
>> On Wed, 31 May 2017 at 09:57 Isaiah Peng <is...@gm... 
>> <mailto:is...@gm...>> wrote:
>>
>>     Hi,
>>
>>     Congratulation on the new release of Jython 2.7.
>>
>>     For the build issue on windows, it should be some jnr-posix call
>>     in PosixModule not masked for windows platform.
>>
>>     Regarding gradle integration if we simply wants to fix the
>>     dependency management, we could improve the ivy task that's
>>     already included in the project.
>>
>>     > UncaughtExceptionHandler in thread "main"
>>     I'll try to figure out today
>>
>>     Best,
>>     Isaiah
>>
>>     On Wed, 31 May 2017 at 02:51 fwi...@gm...
>>     <mailto:fwi...@gm...> <fwi...@gm...
>>     <mailto:fwi...@gm...>> wrote:
>>
>>         Starting a new thread, and including Isaiah Peng in case he
>>         has some
>>         insights. Hi Isaiah! We are starting to discuss how to make the
>>         Jython3 sandbox the main line for development after the
>>         Jython 2.7.1
>>         release.
>>
>>         On Tue, May 30, 2017 at 6:39 AM, Jeff Allen
>>         <ja...@fa... <mailto:ja...@fa...>> wrote:
>>         > Part of me wants to pursue it, but not as much as making
>>         Jython 3 build.
>>
>>         I took a look, and made a couple of changes that get Jython3
>>         building
>>         for me, so the tip of https://github.com/jython/jython3
>>         should now
>>         build (I hope).
>>
>>         For me though, it does not run. I always get:
>>
>>         $ ./dist/bin/jython
>>         Exception in thread "main"
>>         Exception: java.lang.NullPointerException thrown from the
>>         UncaughtExceptionHandler in thread "main"
>>
>>         Investigating further, the issue seems to have been
>>         introduced on Sept
>>         19 in this commit, which unfortunately, is a biggish one:
>>
>>         """
>>         commit 308a17a4e9972aa3814a358917ffbd25fd976864
>>         Author: Isaiah Peng <is...@gm...
>>         <mailto:is...@gm...>>
>>         Date:   Mon Sep 19 18:13:57 2016 +0200
>>
>>             rewrite zipimporter, detach from the shared importer abstract
>>         class, since classpathpyimporter is currently not functional
>>         """
>>
>>         The last commit that works on my machine is the one just before:
>>
>>         """
>>         commit cfed7ce10083ca69f2cec19b9a73d78b60e13967
>>         Author: Isaiah Peng <is...@gm...
>>         <mailto:is...@gm...>>
>>         Date:   Mon Sep 19 15:24:04 2016 +0200
>>
>>             throw OSError for negative seek position
>>         """
>>
>>         Hope this helps!
>>
>>         -Frank
>>
>
>
>
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