it seems that a way to identify the actual OS on which Jython is running can be determined using

Jython 2.7b1 (default:ac42d59644e9, Feb 9 2013, 15:24:52)

[Java HotSpot(TM) 64-Bit Server VM (Oracle Corporation)] on java1.7.0

Type "help", "copyright", "credits" or "license" for more information.

>>> import java.lang.System

>>> java.lang.System.getProperty('os.name')

u'Windows 7'

>>>

Mit freundlichen Grüßen,

Tobias Oberstein

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Von: twisted-python-bounces@twistedmatrix.com [mailto:twisted-python-bounces@twistedmatrix.com] Im Auftrag von Tobias Oberstein
Gesendet: Freitag, 8. März 2013 12:18
An: Twisted general discussion (twisted-python@twistedmatrix.com)
Betreff: [Twisted-Python] Twisted on Jython

Hi,

we've been asked if Autobahn runs under Jython. Since there is an upcoming Jython version that supports 2.7 Python API, I thought I'd give it a try.

To my astonishment, I was able to get Autobahn working with minor efforts …

Tested: Twisted 12.3 under Jython from sources (together with zope.interface 4.05 and setuptools from sources) after applying the following patches. Stock AutobahnPython 0.6 from source.

1) Missing __builtin__.buffer

The following is a workaround due to http://bugs.jython.org/issue1521

Include

# workaround for Jython, see: http://bugs.jython.org/issue1521

import __builtin__

if not hasattr(__builtin__, 'buffer'):

def _buffer(object, offset = None, size = None):

if offset is None:

offset = 0

if size is None:

size = len(object)

return object[offset:offset+size]

__builtin__.buffer = _buffer

at the beginning of "twisted/python/compat.py".

2) Weird platform ident

Jython identifies itself as "Java" .. I was testing on Windows.

twisted/python/runtime.py

Line 36

#'java': 'java',

'java': 'win32',

This is necessary on Windows since otherwise Posix API is assumed.

Of course above is just a quick hack.

C:\Users\oberstet>jython

Jython 2.7b1 (default:ac42d59644e9, Feb 9 2013, 15:24:52)

[Java HotSpot(TM) 64-Bit Server VM (Oracle Corporation)] on java1.7.0

Type "help", "copyright", "credits" or "license" for more information.

>>> import sys, os

>>> sys.platform

'java1.7.0'

>>> os.name

'java'

IMHO, os.name should return the real underlying OS on Jython, not "java" .. what do you think?

===

Where should those issue be adressed? Should Twisted include workarounds or should I lobby at Jython to "do the right" thing?

Cheers,

Tobias