HELP on unittest.loader.ModuleImportFailure

[Kim]

Hi,

I started learning Django and am using "Test Driven Web Development with Python" book. 

On page 21, the book mentions to test using lists/tests.py.

The book uses the code:

$ python3 manage.py test

to run the test. 

However, the manage.py file sits in the upper superlists folder and the tests.py sits in lists folder. 

I keep getting an error message saying "ImportError: No module named lists.tests”. 

Could someone help me figure this out? 

My Django project directory looks like below. 

superlists

  db.sqlite3

  functional_test.py

  manage.py

  lists

    __init__.py

    admin.py

    models.py

    tests.py

    views.py

  superlists

    __init__.py

    settings.py

    urls.py 

    wsgi.py

__init__.py

The error message is below:

$ python manage.py test

Creating test database for alias 'default'...

E

======================================================================

ERROR: superlists.lists.tests (unittest.loader.ModuleImportFailure)

----------------------------------------------------------------------

ImportError: Failed to import test module: superlists.lists.tests

Traceback (most recent call last):

  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/loader.py", line 254, in _find_tests

    module = self._get_module_from_name(name)

  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/loader.py", line 232, in _get_module_from_name

    __import__(name)

ImportError: No module named lists.tests

----------------------------------------------------------------------

Ran 1 test in 0.000s

FAILED (errors=1)

Destroying test database for alias 'default'...

[Kelvin Wong]

You need to be in the first superlists directory. You have a db created so you must have run syncdb at some point. Go back to that folder:

$ pwd

/home/you/superlists

$ ls

__init__.py   db.sqlite3    superlists    lists    manage.py

$ ls lists/tests.py

lists/tests.py

$ python manage.py test

Creating test database for alias 'default'...

...etc...

[Kimitaka Nakazawa]

Hi Kelvin,

Thank you very much for your reply!

I tried your codes above but I still get the same error...

Kind regards,

Kim

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[Kelvin Wong]

Find out which versions you are using

$ python --version

Python 2.7.6

$ django-admin.py version

1.4.10

Try importing the lists app from the shell

$ python manage.py shell

Python 2.7.6 (default, Jan 13 2014, 04:26:18) 

[GCC 4.2.1 (Apple Inc. build 5577)] on darwin

Type "help", "copyright", "credits" or "license" for more information.

(InteractiveConsole)

>>> import lists

>>> lists.__file__

'/users/you/superlists/lists/__init__.py'

>>> from lists.tests import *

>>>

If you see all that, run the lists app explicitly by label

$ python manage.py test lists

If that doesn't work, maybe there is something weird in your manage.py messing the paths. Paste it.

K

[Kimitaka Nakazawa]

Thank you very much for the reply!

Going through your suggestion below,

at ">>> from lists.tests import *” part, I got an error which is below. 

Traceback (most recent call last):

  File "<console>", line 1, in <module>

  File "/Users/kim/Desktop/Python/python3/superlists/lists/tests.py", line 3, in <module>

    from superlists.lists.views import home_page

ImportError: No module named lists.views

The code of the manage.py file is:

#!/usr/bin/env python

import os

import sys

if __name__ == "__main__":

    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "superlists.settings")

    from django.core.management import execute_from_command_line

    execute_from_command_line(sys.argv)

Kind regards,

Kim

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[Kelvin Wong]

Open this file

/Users/kim/Desktop/Python/python3/superlists/lists/tests.py

On line 3 change

from superlists.lists.views import home_page

to

from lists.views import home_page

For the future, check your paths with the following

import sys; print(sys.path)

K

[Kimitaka Nakazawa]

Thank you again for your advice!

It worked:) 

Kim

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