Help: 'django.utils.six.moves' is not a package

[Derek Zeng]

I got the following error when running pytest in django. Help is appreciated.

This is the test I run

import pytest
from .factories import *

@pytest.mark.django_db
def test_with_client(client):
  PostFactory.create() # if commented out, the error is gone
  response = client.get('/')

  body = str(response.content)
  assert 'Mysite' in body

PostFactory creates a Post object in the database

apps/blog/tests/test_post.py:5 (test_with_client)
client = <django.test.client.Client object at 0x1040cf3c8>
@pytest.mark.django_db
def test_with_client(client):
p = PostFactory.create()

> response = client.get('/')
blog/tests/test_post.py:10: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/test/client.py:517: in get
response = super().get(path, data=data, secure=secure, **extra)
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/test/client.py:332: in get
return self.generic('GET', path, secure=secure, **r)
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/test/client.py:404: in generic
return self.request(**r)
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/test/client.py:467: in request
response = self.handler(environ)
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/test/client.py:125: in __call__
self.load_middleware()
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/core/handlers/base.py:37: in load_middleware
middleware = import_string(middleware_path)
../../../../.virtualenvs/django/lib/python3.6/site-packages/django/utils/module_loading.py:17: in import_string
module = import_module(module_path)
../../../../.virtualenvs/django/lib/python3.6/importlib/__init__.py:126: in import_module
return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:994: in _gcd_import
???
<frozen importlib._bootstrap>:971: in _find_and_load
???
<frozen importlib._bootstrap>:955: in _find_and_load_unlocked
???
<frozen importlib._bootstrap>:665: in _load_unlocked
???
<frozen importlib._bootstrap_external>:678: in exec_module
???
<frozen importlib._bootstrap>:219: in _call_with_frames_removed
???
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
from __future__ import absolute_import

import re

from django import http
from django.apps import apps
from django.utils.cache import patch_vary_headers
> from django.utils.six.moves.urllib.parse import urlparse
E ModuleNotFoundError: No module named 'django.utils.six.moves.urllib'; 'django.utils.six.moves' is not a package
../../../../.virtualenvs/django/lib/python3.6/site-packages/corsheaders/middleware.py:8: ModuleNotFoundError

[Avraham Serour]

sounds like django 2 removed six and some library you are using still hopes it exists.

what django version are you using?

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[Derek Zeng]

I'm using django 2.0. 

What exactly is the purpose of django.utils.six.moves module? 

I have read the source but don't quite understand. Seems like a poly-fill of pre-existing libraries like urllib

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[Babatunde Akinyanmi]

On Tue, 10 Apr 2018, 02:47 Derek Zeng, <zen...@gmail.com> wrote:

I'm using django 2.0. 

What exactly is the purpose of django.utils.six.moves module? 

Allowing a code base to be able to run on both python 2 and python 3

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[Derek Zeng]

On Tue, Apr 10, 2018, 1:39 AM Babatunde Akinyanmi <tunde...@gmail.com> wrote:

On Tue, 10 Apr 2018, 02:47 Derek Zeng, <zen...@gmail.com> wrote:

I'm using django 2.0. 

What exactly is the purpose of django.utils.six.moves module? 

Allowing a code base to be able to run on both python 2 and python 3

yeah, but what role does moves module play here? if an old module is not found here, where does it look for it?

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[Julio Biason]

Six is self-contained it does look anywhere, it has its own list of “how it was before and how it is now”.

In the case of moves, it has conditions of “module urlparse is urlparse in python 2 and urllib.parse in python 3” and then sets its own move module to point to one of those, based on python version.

It’s weird that it can find six, but not the “moves” module. Have you tried deleting your virtual end and creating it again, with the new versions?

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From: django...@googlegroups.com <django...@googlegroups.com> on behalf of Derek Zeng <zen...@gmail.com>
Sent: Tuesday, April 10, 2018 10:31:27 AM
To: django...@googlegroups.com
Subject: Re: Help: 'django.utils.six.moves' is not a package

 

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[Babatunde Akinyanmi]

Do you have any module making use of six? Also is there any change in the story if you do `python3 manage.py [command]`

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