Issue connecting Neo4j in Django

General Newbie Questions
1

Hi all,

When i follow the simple django neomodel tutorial, i encounter this error when running the following command:

python manage.py install_labels

File "C:\Users\xxxx\AppData\Local\Continuum\anaconda3\lib\ssl.py", line 1139, 
in do_handshake     self._sslobj.do_handshake()
 OSError: [Errno 0] Error

I've the latest versions of both neo4j and python installed.

I found somebody else with the same issue, however it hasn't been solved for him/her as well. If somebody could help me out, it would be highly appreciated.

2

I had issues trying to connect to Neo4j version 4 with the python drivers. The same code worked if I down graded Neo4j to version 3.

3

Thanks a lot! This resolved the issue. Now it results in another internal server error when I open the view in which I request data from the neo4j database in my locally hosted django website:

TypeError: join() argument must be str or bytes, not 'WSGIRequest'

This keeps the issue alive that I'm not able to connect neo4j and django.If anyone could help me out, would be great!

4

@fhol I've encountered the same error but I'm not using Django - just straight python - but I came across your message on my travels around the internet and thought you may benefit from what I found.

On the neomodel documentation it suggests - "handy for development" - to use this configuration param:

config.ENCRYPTED_CONNECTION = False

See here: Configuration — neomodel 4.0.8 documentation

This got me passed the SSL error we both encountered without the need to downgrade neo4j.

HTH

5

Thanks for your comment, really great to see how helpful people in this community are!

However, I did what you said and still encounter the same issue. So I'll add my settings and installations here:

> pip freeze

asgiref==3.2.7
certifi==2020.4.5.1
chardet==3.0.4
decorator==4.4.2
Django==3.0.6
django-neomodel==0.0.4
idna==2.9
lucene-querybuilder==0.2
neo4django==0.1.8
neo4j==4.0.0
neo4j-driver==1.7.2
neo4jrestclient==2.1.1
neobolt==1.7.17
neomodel==3.3.2
neotime==1.7.4
python-dateutil==2.8.1
pytz==2020.1
requests==2.23.0
six==1.15.0
sqlparse==0.3.1
urllib3==1.25.9

my settings.py:

import os

from neomodel import config

config.ENCRYPTED_CONNECTION = False

config.DATABASE_URL = 'bolt://neo4j:mypassword@localhost:7687'

config.MAX_POOL_SIZE = 50

INSTALLED_APPS = [

    'all my apps'

    'django_neomodel',

]

I also installed openjdk 14.0.1. because I read it was necessary and my OS is windows 10.

Maybe it's because I'm new to neo4j, but I find there is a lot of documentation however it is a bit fragmanted as each tutorial/instruction covers a bit, but I can't find a full instruction of what to do to connect your django application with a neo4j database. Again, it would be great if someone could help me out.

python manage.py install_labels works, but when I use the model in a view and visit http://127.0.0.1:8000/ to watch the data in the model I get the error again:

TypeError: join() argument must be str or bytes, not 'WSGIRequest'