Relative import problem

[Jorgen Bodde]

Hi all,

I want to structure my app so that I have two dirs like;

obj/{object files}

gui/{gui files}

Here comes the catch. From the GUI dir, I would like to access the obj
submodule path. I need to go one dir back.. I read there was something
like from .. import x in python 2.5 so that I could access my obj dir
from a lower level, but I have problems getting this to work.

Example;

In the main dir I have;

main.py:
--------
import gui

gui.gui.startme ()
--------

In the obj dir I have;

obj/obj.py
---------

def start():
print 'Started OBJ'
---------

In the GUI dir I have

gui/gui.py
---------
from .. import obj

def start():
obj.obj.start()
---------

This does not work. It gives me;

D:\personal\src \GuitarPortfoli o\tmp>python start.py
Traceback (most recent call last):
File "start.py", line 4, in <module>
gui.gui.start()
AttributeError: 'module' object has no attribute 'gui'

Am I shooting myself in the foot by trying to structure? Or are there
better more elegant ways?

Regards,
- Jorgen

[kyosohma@gmail.com]

Re: Relative import problem

On Apr 19, 11:54 am, "Jorgen Bodde" <jorgen.maill.. .@gmail.comwrot e:

Hi all,
>
I want to structure my app so that I have two dirs like;
>
obj/{object files}
>
gui/{gui files}
>
Here comes the catch. From the GUI dir, I would like to access the obj
submodule path. I need to go one dir back.. I read there was something
like from .. import x in python 2.5 so that I could access my obj dir
from a lower level, but I have problems getting this to work.
>
Example;
>
In the main dir I have;
>
main.py:
--------
import gui
>
gui.gui.startme ()
--------
>
In the obj dir I have;
>
obj/obj.py
---------
>
def start():
print 'Started OBJ'
---------
>
In the GUI dir I have
>
gui/gui.py
---------
from .. import obj
>
def start():
obj.obj.start()
---------
>
This does not work. It gives me;
>
D:\personal\src \GuitarPortfoli o\tmp>python start.py
Traceback (most recent call last):
File "start.py", line 4, in <module>
gui.gui.start()
AttributeError: 'module' object has no attribute 'gui'
>
Am I shooting myself in the foot by trying to structure? Or are there
better more elegant ways?
>
Regards,
- Jorgen

I'm not finding much info on this subject. But here's the most
interesting links I've found as of yet:

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/456362

http://www.thescripts.com/forum/thread549516.html

http://www.thescripts.com/forum/thread42319.html

http://docs.python.org/tut/node8.html

Dunno if any of these will help you though. Sorry.

Mike

[Martin]

Re: Relative import problem

On Apr 19, 6:54 pm, "Jorgen Bodde" <jorgen.maill.. .@gmail.comwrot e:

Hi all,
>
I want to structure my app so that I have two dirs like;
>
obj/{object files}
>
gui/{gui files}
>
Here comes the catch. From the GUI dir, I would like to access the obj
submodule path. I need to go one dir back.. I read there was something
like from .. import x in python 2.5 so that I could access my obj dir
from a lower level, but I have problems getting this to work.
>
Example;
>
In the main dir I have;
>
main.py:
--------
import gui
>
gui.gui.startme ()
--------
>
In the obj dir I have;
>
obj/obj.py
---------
>
def start():
print 'Started OBJ'
---------
>
In the GUI dir I have
>
gui/gui.py
---------
from .. import obj
>
def start():
obj.obj.start()
---------
>
This does not work. It gives me;
>
D:\personal\src \GuitarPortfoli o\tmp>python start.py
Traceback (most recent call last):
File "start.py", line 4, in <module>
gui.gui.start()
AttributeError: 'module' object has no attribute 'gui'
>
Am I shooting myself in the foot by trying to structure? Or are there
better more elegant ways?
>
Regards,
- Jorgen

You need to add the path to where your files are located since they
are not in any of the "standard" path directories where Python looks.
To do this, you can add the following lines in your files:

import sys
sys.path.append (/path/to/obj)
sys.path.append (/path/to/gui)

import obj
import gui

#etc..

Hope this helps