Thanks again Tobias. Here's the output:
Traceback (most recent call last):
File
"/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.5.egg/neo4j/_backend/__init__.py",
line 45, in initialize
embedded, remote = implementation.initialize(classpath, params)
File
"/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.5.egg/neo4j/_backend/reflection.py",
line 36, in initialize
jvm = parameters.get('jvm', jpype.getDefaultJVMPath())
File "/usr/lib/python2.5/site-packages/jpype/_core.py", line 96, in
getDefaultJVMPath
return _linux.getDefaultJVMPath()
File "/usr/lib/python2.5/site-packages/jpype/_linux.py", line 36, in
getDefaultJVMPath
jvm = _getJVMFromJavaHome()
File "/usr/lib/python2.5/site-packages/jpype/_linux.py", line 55, in
_getJVMFromJavaHome
if os.path.exists(java_home+"/bin/javac") :
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
File "neotest.py", line 10, in <module>
neo = NeoService("foo", log=logger, classpath=["neo-1.0-b8.jar",
"jta-1_1.jar"])
File
"/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.5.egg/neo4j/__init__.py",
line 459, in __new__
neo = core.load_neo(resource_uri, params)
File
"/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.5.egg/neo4j/_core.py",
line 56, in load_neo
backend.initialize(**parameters)
File
"/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.5.egg/neo4j/_backend/__init__.py",
line 52, in initialize
raise ImportError("No applicable backend found.")
ImportError: No applicable backend found.
On Mon, Aug 3, 2009 at 2:07 AM, Tobias Ivarsson <
[email protected]> wrote:
> You can get some more details on that error if you supply a logger to the
> NeoService:
>
> import logging
> logger = logging.getLogger('neo')
> logger.setLevel(logging.DEBUG)
> logger.addHandler(logging.StreamHandler())
> neo = NeoService("foo", log=logger, ...) # replace '...' with the rest of
> your arguments
>
> If you could give me the full output of that that would be great.
>
> Thanks,
> Tobias
>
> On Mon, Aug 3, 2009 at 9:39 AM, Karan Bhangui <[email protected]
> >wrote:
>
> > Hey Tobias,
> >
> > I finally got it working (reinstalled the neo4j.py library with a
> > fresh python2.5 install). What I'm having trouble with now is running
> > the sample application. I've tried several combos of this:
> >
> > neo = NeoService("foo", classpath=["neo-1.0-b8.jar", "jta-1_1.jar"])
> > with neo.transaction:
> > ref_node = neo.reference_node
> > new_node = neo.node()
> > # put operations that manipulate the node space here ...
> > neo.shutdown()
> >
> > I've also tried a version where I supplied the jvm path as /usr/lib/
> > jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
> >
> > However, every time I try to run it, i get:
> >
> > Traceback (most recent call last):
> > File "neotest.py", line 4, in <module>
> > neo = NeoService("foo", classpath=["neo-1.0-b8.jar",
> > "jta-1_1.jar"])
> > File "/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-
> > py2.5.egg/neo4j/__init__.py", line 459, in __new__
> > neo = core.load_neo(resource_uri, params)
> > File "/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-
> > py2.5.egg/neo4j/_core.py", line 56, in load_neo
> > backend.initialize(**parameters)
> > File "/usr/lib/python2.5/site-packages/Neo4j.py-0.1_SNAPSHOT-
> > py2.5.egg/neo4j/_backend/__init__.py", line 52, in initialize
> > raise ImportError("No applicable backend found.")
> > ImportError: No applicable backend found.
> >
> >
> > I've been trying to get help in #python on freenode for the past few
> > hours but to no avail. I'm fairly frustrated and decided to write a
> > jar and just access it from python's subprocess module, but if you
> > know what's wrong I would appreciate it. I'd love to get this working
> > with pure cpython and not try any hacks.
> >
> > Thanks,
> >
> > Karan
> >
> >
> > On 3-Aug-09, at 12:36 AM, Tobias Ivarsson wrote:
> >
> > > Hi Karan,
> > >
> > > ´from neo4j import NeoService´ is supposed to work, and works with the
> > > setups I have available. Could you please provide some details about
> > > which
> > > version of CPython you are using and a stack trace for that
> > > ImportError so
> > > that I can try and debug this issue.
> > >
> > > Cheers,
> > > Tobias
> > >
> > > On Mon, Aug 3, 2009 at 6:47 AM, Karan Bhangui
> > > <[email protected]>wrote:
> > >
> > >> Hey guys, I'm trying to work with neo4j using python (neo4j.py module
> > >> for CPython). I've installed JPype as a dependency and am able to
> > >> import the `neo4j` module in python. However, when I try from neo4j
> > >> import NeoService, i get an ImportError. Does anyone know why?
> > >>
> > >> Thanks a ton,
> > >>
> > >> Karan
> > >> _______________________________________________
> > >> Neo mailing list
> > >> [email protected]
> > >> https://lists.neo4j.org/mailman/listinfo/user
> > >>
> > >
> > >
> > >
> > > --
> > > Tobias Ivarsson <[email protected]>
> > > Hacker, Neo Technology
> > > www.neotechnology.com
> > > Cellphone: +46 706 534857
> > > _______________________________________________
> > > Neo mailing list
> > > [email protected]
> > > https://lists.neo4j.org/mailman/listinfo/user
> >
> > _______________________________________________
> > Neo mailing list
> > [email protected]
> > https://lists.neo4j.org/mailman/listinfo/user
> >
>
>
>
> --
> Tobias Ivarsson <[email protected]>
> Hacker, Neo Technology
> www.neotechnology.com
> Cellphone: +46 706 534857
> _______________________________________________
> Neo mailing list
> [email protected]
> https://lists.neo4j.org/mailman/listinfo/user
>
--
Karan Bhangui
Email: [email protected]
Site: http://karan.bhangui.com
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