[pytest-dev] syntax for importing modules in Pytest tests

[dpb dpb]

I've posted a MWE to https://github.com/dpbmm/pytest_import_question for
ease of study.

Curiously, the example works with nose. What should I do to make it work
with Pytest?

- dpb

On Fri, Jul 24, 2015 at 1:16 PM, dpb dpb <dpb.mediamath at gmail.com> wrote:

> I'm converting some tests written earlier for Unittest and am having
> trouble with import statements when running them with Pytest.
>
> As an example, in the older code the module create.py in directory lib
> might be imported as
>
> import lib.create
>>
>
> but this syntax usually raises errors when I run the code with Pytest.
>
> I'd appreciate any advice. Details and minimal examples below.
>
> 1. I am in the directory temp:
>
> temp/
>     lib/
>         __init__.py
>         create.py
>     tests/
>         test_caller.py
>
>
>
> 2. File __init__.py is empty. The other two files are as follows:
>
> # test_caller.py
>>
>> import lib.create
>>
>> def test_show():
>>     assert True
>>
>
> and
>
> # create.py
>>
>> def create():
>>     pass
>>
>
>
>
> 3. Running Pytest from within temp typically generates an ImportError:
>
> $ py.test tests
>> ============================= test session starts
>> ==============================
>> platform darwin -- Python 2.7.6 -- py-1.4.26 -- pytest-2.7.0
>> rootdir: .../temp/tests, inifile:
>> collected 0 items / 1 errors
>>
>> ==================================== ERRORS
>> ====================================
>> _______________________ ERROR collecting test_caller.py
>> ________________________
>> tests/test_caller.py:3: in <module>
>>     import lib.create
>> E   ImportError: No module named lib.create
>> =========================== 1 error in 0.01 seconds
>> ============================
>>
>
>
>
> 4. I have tried updating the sys.path list in test_caller.py:
>
> import sys
>> sys.path.append('lib')
>>
>
> or
>
> sys.path.extend(['..', 'lib'])
>>
>
> but the result is the same.
>
> Thanks for any suggestions as to how to deal with this.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/pytest-dev/attachments/20150724/b5e45708/attachment-0001.html>