I've never used PyDev, but if it effectively adds the folder that
you've specified in that screenshot to PYTHONPATH, then I suspect that
is the problem. What happens if you remove that "External Library",
and try to run the following script:

    import sqlalchemy
    print sqlalchemy.__file__

Simon

On Sat, Aug 16, 2014 at 2:41 PM, Zakaria Boulouard <zboulou...@gmail.com> wrote:
> Hello Michael and thanks for your help,
>
> If there is anyway to make it work in PyDev that would be great because I
> want to integrate a similar code into a bigger project and PyDev would be
> more suitable.
>
> I guess importing the SQLAlchemy lib was the way it should be, I even put it
> as forced lib, you can check the attached picture.
>
> If it wouldn't bother you, I would like to invite you to take a look using
> teamviewer and see what is going on.
>
> Thanks again!
>
>
> 2014-08-16 13:25 GMT+01:00 Michael Bayer <mike...@zzzcomputing.com>:
>>
>> how are you running the script?   there’s an environmental issue that is
>> causing SQLAlchemy to be imported improperly.
>>
>> This is probably some PyDev issue.   If you install SQLAlchemy in a
>> virtualenv normally and run the script from the console it should be fine
>> (runs over here OK).
>>
>>
>>
>> On Aug 16, 2014, at 4:13 AM, Zakaria Boulouard <zboulou...@gmail.com>
>> wrote:
>>
>> Hello guys,
>>
>> I am new to SQLAlchemy and I wanted to try an example using a MySQL
>> database and PyDev as an IDE but when I run it, PyDev gives me the following
>> error :
>>
>>> Traceback (most recent call last):
>>>   File "/usr/lib/python2.7/site.py", line 68, in <module>
>>>     import os
>>>   File "/usr/lib/python2.7/os.py", line 49, in <module>
>>>     import posixpath as path
>>>   File "/usr/lib/python2.7/posixpath.py", line 17, in <module>
>>>     import warnings
>>>   File "/usr/lib/python2.7/warnings.py", line 8, in <module>
>>>     import types
>>>   File
>>> "/home/zakaria/Bureau/Python/SQLAlchemy-0.9.7/lib/sqlalchemy/types.py", line
>>> 21, in <module>
>>>     from .sql.type_api import (
>>> ValueError: Attempted relative import in non-package
>>
>>
>> What did I do wrong? And how can I fix it?
>>
>> Please find attached the test file "Personne.py" and thanks for your help!
>>
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>> <Personne.py>
>>
>>
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>
>
>
>
> --
> Zakaria BOULOUARD
> Ingénieur d'État en Génie Informatique
> École Nationale des Sciences Appliquées Khouribga
> N° Téléphone: (+212)662193321 / (+212)668695440
>
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