1
所以我在ArchLinux上安装了neo4j(AUR Link)并且想用python 3.2测试它。 我使用python 3.2,Eclipse与Pydev。在Eclipse中运行neo4j-Python代码,使用ArchLinux下的Pydev
我试过下面的代码从neo4j网站,allthough我认为它仍然是2.7 python代码,我试图将其转换为Python 3.2代码。
下面的代码:
import os
libpath = '/usr/share/java/neo4j'
os.environ['CLASSPATH'] = ';'.join([ os.path.abspath(p) for p in
os.listdir(libpath)])
from neo4j import GraphDatabase
# Create a database
db = GraphDatabase('/home/USERNAME/.db/neo4j/HelloWorld')
# All write operations happen in a transaction
with db.transaction:
firstNode = db.node(name='Hello')
secondNode = db.node(name='world!')
# Create a relationship with type 'knows'
relationship = firstNode.knows(secondNode, name='graphy')
# Read operations can happen anywhere
message = ' '.join([firstNode['name'], relationship['name'], secondNode['name']])
print(message)
# Delete the data
with db.transaction:
firstNode.knows.single.delete()
firstNode.delete()
secondNode.delete()
# Always shut down your database when your application exits
db.shutdown()
,但我得到以下错误消息:
Traceback (most recent call last):
File "/home/USERNAME/PATH/TO/src/neo4j-HelloWorld.py", line 12, in <module>
from neo4j import GraphDatabase
File "/usr/lib/python3.2/site-packages/neo4j_embedded-1.6-py3.2.egg/neo4j/__init__.py", line 29, in <module>
from neo4j.core import GraphDatabase, Direction, NotFoundException, BOTH, ANY, INCOMING, OUTGOING
File "/usr/lib/python3.2/site-packages/neo4j_embedded-1.6-py3.2.egg/neo4j/core.py", line 19, in <module>
from _backend import *
ImportError: No module named _backend
我只是无法弄清楚什么是错的! 我试图按here所述设置CLASSPATH,但它不会改变任何内容。
我真的很感激任何帮助!
似乎是这样的正确答案...不是? – 2012-02-29 16:20:09
虽然没有为我工作:core.py 2to3翻译时没有得到它的引用编辑,以适应._backend导入* – chiffa 2013-12-17 21:51:13