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所以我在ArchLinux上安裝了neo4j(AUR Link)並且想用python 3.2測試它。 我使用python 3.2,Eclipse與Pydev。在Eclipse中運行neo4j-Python代碼,使用ArchLinux下的Pydev
我試過下面的代碼從neo4j網站,allthough我認爲它仍然是2.7 python代碼,我試圖將其轉換爲Python 3.2代碼。
下面的代碼:
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()
,但我得到以下錯誤消息:
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
我只是無法弄清楚什麼是錯的! 我試圖按here所述設置CLASSPATH,但它不會改變任何內容。
我真的很感激任何幫助!
似乎是這樣的正確答案...不是? – 2012-02-29 16:20:09
雖然沒有爲我工作:core.py 2to3翻譯時沒有得到它的引用編輯,以適應._backend導入* – chiffa 2013-12-17 21:51:13