But onto the point you're making. I think its possibly a mis-viewing
of the package idea in Python. A package creates a name space. If you
create Lib/Server/Db with all the __init__.py files, its because you
want to import Lib.Server.Db, rather than a way of organising your
source files.
I
Laszlo,
...
Importing from a not package related source code is not a problem,
really. My problem is about importing inside a package.
Lib/Server/Db/__init__.py __can__ import Lib/Server/Db/Adapters usign
relative paths, but
Lib/Server/Db/Adapters/PostgreSQLConnection.py __cannot__
Hi All!
I have the following structure:
/Lib/Server/Db/
__init_.py
DatabaseConnection.py
Adapters/
__init__.py
FireBirdConnection.py
Important file contents are:
/Lib/Server/Db/__init__.py:
import DatabaseConnection
import Adapters
/Lib/Server/Db/DatabaseConnection.py:
Hi!
Laszlo Zsolt Nagy wrote:
I have the following structure:
/Lib/Server/Db/
__init_.py
DatabaseConnection.py
Adapters/
__init__.py
FireBirdConnection.py
Important file contents are:
/Lib/Server/Db/__init__.py:
import DatabaseConnection
import Adapters
Two solutions come into my mind:
1. Do not inherit from DatabaseConnection, but pass a
DatabaseConnection object as a parameter to the FireBirdConnection's
__init__function. After this you can delegate the necessary
functionality to the DatabaseConnection (by using __getattr__). This
2. Maybe the layering of your application is wrong. If
DatabaseConnection provides common functionality to the different
Adapters, it should be on the same layer or one beneath the Adapters.
Another notice. If I put 'DatabaseConnection' under 'Adapters' then it
means that
' under 'Adapters' then it means that 'DatabaseConnection' is an
adapter. But it is not. :-) In the other direction, Adapters are
deeper, so adapters should can DatabaseConnection-s (and in fact they
are).
Spelled:
In the other direction, Adapter is deeper, so adapters should _be_
Laszlo,
For :-
Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)] on
win32
Type help, copyright, credits or license for more information.
import Lib
Traceback (most recent call last):
File stdin, line 1, in ?
File Lib\__init__.py, line 1, in ?
import Server
Paul Clinch wrote:
I get:
import Lib
Traceback (most recent call last):
File stdin, line 1, in ?
ImportError: No module named Lib
I guess there's a Lib/__init__.py.
You are totally right. I was trying to create an example but Python
found something on my PYTHONPATH.
Sorry for
Here is the example:
http://designasign.biz/Lib2.zip
Please extract the file and try to import Lib2
Although \Lib2\Client\Db\DatabaseConnection.py and
\Lib2\Server\Db\DatabaseConnection.py have the same class name but they
are in a different sub-package. From a programmer's view, I hope this is
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